Do you need to know, when is the best time to go to Northern Territory? Then you should take a look here, what weather you can expect there during the year.
Northern Territory is part of Australia. The climate of Australia varies widely, as the country is very large. The largest part of Australia is arid to semiarid, temperate in south and east, tropical in north. The northern part of Australia has a tropical climate with tropical rainforests, grasslands and deserts. Winter in Australia is usually mild, there are not so huge contrasts between summer and winter temperatures as on the northern hemisphere. But on some places the temperatures can go down below zero in winter.
When speaking about the usual weather in this area, the information is relevant for example for these popular places: Adelaide River, Alice Springs, Arnhem Land, Barkly Tableland, Chambers Pillar Historical Reserve, Darwin, Erldunda, Ewaninga Conservation Reserve, Humpty Doo, Kakadu National Park, Katherine, Litchfield National Park, MacDonnell Ranges, Pine Creek, Rainbow Valley, Red Centre, Tennant Creek, Tiwi Islands, Top End, Uluru Kata Tjuta National Park, Watarrka National Park, West MacDonnell National Park, Wycliffe Well, Yulara.
Let's look now what weather you can expect in the area around Darwin and in many other cities. The warmest month here is April, the average maximum temperature is 33.8 ℃ (92.84 ℉). The average minimum temperature in this month is 23.9 ℃ (75.02 ℉). The coldest month here is February, the average maximum temperature is 31 ℃ (87.8 ℉). The average minimum temperature in this month is 25.2 ℃ (77.36 ℉). The most rainy month here is January, the average number of rainy days is 21.7. The least rainy month here is July, the average number of rainy days is 0.4. 
When travelling around Northern Territory, always consider the altitude of the the place as well. We should remind you, that the highest point in Australia is Mount Kosciuszko (2228 m) and the lowest point is Lake Eyre (-15 m). So there are quite big differences in altitudes in this country, so you can expect the weather to be different in different altitudes as well. Keep in mind, that the temperature usually decreases by 1.2 - 1.9 ℃ (2.2 - 3.5 ℉) per 200 m (656 ft), depending on the other conditions. (And we should add, that in the very special condition named thermal inversion even the temperature may be higher in higher altitudes.)
Typical (usual) weather in Northern Territory in January is this: The average highest temperature in Northern Territory in January is 32 ℃ (89.6 ℉). The average lowest temperature is 25.7 ℃ (78.26 ℉). At the beginning of January you can expect higher temperatures, the average highest temperature is around 32.1 ℃ (89.78 ℉). At the end of January you can expect lower temperatures, the average highest temperature is around 31.5 ℃ (88.7 ℉). The average number of rainy days in January is 21.7. The average rainfall is 459 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:50 (hours and minutes), in the middle of the month 12:46 and at the end of the month 12:39.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Northern Territory in February is this: The average highest temperature in Northern Territory in February is 31 ℃ (87.8 ℉). The average lowest temperature is 25.2 ℃ (77.36 ℉). At the beginning of February you can expect higher temperatures, the average highest temperature is around 31.5 ℃ (88.7 ℉). At the end of February you can expect higher temperatures, the average highest temperature is around 31.35 ℃ (88.43 ℉). The average number of rainy days in February is 20.9. The average rainfall is 370.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:39 (hours and minutes), in the middle of the month 12:30 and at the end of the month 12:20.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Northern Territory in March is this: The average highest temperature in Northern Territory in March is 31.7 ℃ (89.06 ℉). The average lowest temperature is 24.3 ℃ (75.74 ℉). At the beginning of March you can expect lower temperatures, the average highest temperature is around 31.35 ℃ (88.43 ℉). At the end of March you can expect higher temperatures, the average highest temperature is around 32.75 ℃ (90.95 ℉). The average number of rainy days in March is 19.3. The average rainfall is 332.4 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:20 (hours and minutes), in the middle of the month 12:09 and at the end of the month 11:59.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Northern Territory in April is this: The average highest temperature in Northern Territory in April is 33.8 ℃ (92.84 ℉). The average lowest temperature is 23.9 ℃ (75.02 ℉). At the beginning of April you can expect lower temperatures, the average highest temperature is around 32.75 ℃ (90.95 ℉). At the end of April you can expect lower temperatures, the average highest temperature is around 33.25 ℃ (91.85 ℉). The average number of rainy days in April is 10. The average rainfall is 109.6 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:59 (hours and minutes), in the middle of the month 11:49 and at the end of the month 11:40.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Northern Territory in May is this: The average highest temperature in Northern Territory in May is 32.7 ℃ (90.86 ℉). The average lowest temperature is 23.2 ℃ (73.76 ℉). At the beginning of May you can expect higher temperatures, the average highest temperature is around 33.25 ℃ (91.85 ℉). At the end of May you can expect lower temperatures, the average highest temperature is around 32 ℃ (89.6 ℉). The average number of rainy days in May is 2.4. The average rainfall is 24.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:40 (hours and minutes), in the middle of the month 11:32 and at the end of the month 11:26.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Northern Territory in June is this: The average highest temperature in Northern Territory in June is 31.3 ℃ (88.34 ℉). The average lowest temperature is 19.9 ℃ (67.82 ℉). At the beginning of June you can expect higher temperatures, the average highest temperature is around 32 ℃ (89.6 ℉). At the end of June you can expect higher temperatures, the average highest temperature is around 31.45 ℃ (88.61 ℉). The average number of rainy days in June is 0.7. The average rainfall is 2.3 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:26 (hours and minutes), in the middle of the month 11:23 and at the end of the month 11:24.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Northern Territory in July is this: The average highest temperature in Northern Territory in July is 31.6 ℃ (88.88 ℉). The average lowest temperature is 20.1 ℃ (68.18 ℉). At the beginning of July you can expect lower temperatures, the average highest temperature is around 31.45 ℃ (88.61 ℉). At the end of July you can expect lower temperatures, the average highest temperature is around 31.5 ℃ (88.7 ℉). The average number of rainy days in July is 0.4. The average rainfall is 1.2 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:24 (hours and minutes), in the middle of the month 11:27 and at the end of the month 11:32.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Northern Territory in August is this: The average highest temperature in Northern Territory in August is 31.4 ℃ (88.52 ℉). The average lowest temperature is 20.2 ℃ (68.36 ℉). At the beginning of August you can expect higher temperatures, the average highest temperature is around 31.5 ℃ (88.7 ℉). At the end of August you can expect higher temperatures, the average highest temperature is around 32.3 ℃ (90.14 ℉). The average number of rainy days in August is 0.7. The average rainfall is 5.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:32 (hours and minutes), in the middle of the month 11:40 and at the end of the month 11:49.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Northern Territory in September is this: The average highest temperature in Northern Territory in September is 33.2 ℃ (91.76 ℉). The average lowest temperature is 22.9 ℃ (73.22 ℉). At the beginning of September you can expect lower temperatures, the average highest temperature is around 32.3 ℃ (90.14 ℉). At the end of September you can expect higher temperatures, the average highest temperature is around 33.5 ℃ (92.3 ℉). The average number of rainy days in September is 2.9. The average rainfall is 17.6 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:49 (hours and minutes), in the middle of the month 11:59 and at the end of the month 12:09.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Northern Territory in October is this: The average highest temperature in Northern Territory in October is 33.8 ℃ (92.84 ℉). The average lowest temperature is 25.6 ℃ (78.08 ℉). At the beginning of October you can expect lower temperatures, the average highest temperature is around 33.5 ℃ (92.3 ℉). At the end of October you can expect lower temperatures, the average highest temperature is around 33.45 ℃ (92.21 ℉). The average number of rainy days in October is 6.9. The average rainfall is 64.2 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:09 (hours and minutes), in the middle of the month 12:20 and at the end of the month 12:30.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Northern Territory in November is this: The average highest temperature in Northern Territory in November is 33.1 ℃ (91.58 ℉). The average lowest temperature is 26.3 ℃ (79.34 ℉). At the beginning of November you can expect higher temperatures, the average highest temperature is around 33.45 ℃ (92.21 ℉). At the end of November you can expect lower temperatures, the average highest temperature is around 32.65 ℃ (90.77 ℉). The average number of rainy days in November is 12.7. The average rainfall is 136.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:30 (hours and minutes), in the middle of the month 12:38 and at the end of the month 12:46.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Northern Territory in December is this: The average highest temperature in Northern Territory in December is 32.2 ℃ (89.96 ℉). The average lowest temperature is 25.2 ℃ (77.36 ℉). At the beginning of December you can expect higher temperatures, the average highest temperature is around 32.65 ℃ (90.77 ℉). At the end of December you can expect lower temperatures, the average highest temperature is around 32.1 ℃ (89.78 ℉). The average number of rainy days in December is 17.2. The average rainfall is 272.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:46 (hours and minutes), in the middle of the month 12:50 and at the end of the month 12:51.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.| Darwin | temperature: - | highest temperature: 32.2 ℃ (89.96 ℉) | lowest temperature: 25.2 ℃ (77.36 ℉) | rainfall: 272.7mm | rainy days: 17.2 |
| Alice Springs | temperature: - | highest temperature: 36.5 ℃ (97.7 ℉) | lowest temperature: 21 ℃ (69.8 ℉) | rainfall: 40.6mm | rainy days: 6.3 |
| Katherine | temperature: - | highest temperature: - | lowest temperature: - | rainfall: - | rainy days: - |
| Tennant Creek | temperature: - | highest temperature: 36.4 ℃ (97.52 ℉) | lowest temperature: 25.8 ℃ (78.44 ℉) | rainfall: 67.1mm | rainy days: 7.7 |
| Yulara | temperature: - | highest temperature: 36.6 ℃ (97.88 ℉) | lowest temperature: 20.6 ℃ (69.08 ℉) | rainfall: - | rainy days: - |