Do you need to know, when is the best time to go to Swaziland? Then you should take a look here, what weather you can expect there during the year.
The climate of Swaziland is varies from tropical to near temperate. You can expect most rains during the summer from November to February, there are quite often thunderstorms. Winter is the dry season. Temperature depends on the altitude also.
When speaking about the usual weather in this state, the information is relevant for example for these popular places: Hlane Royal National Park, Lobamba, Malolotja Nature Reserve, Manzini, Mbabane, Mkhaya Game Reserve, Mlawula Nature Reserve.
Let's look now what weather you can expect in the area around the capital and in many other cities. The warmest month here is January, the average maximum temperature is 25.4 ℃ (77.72 ℉). The average minimum temperature in this month is 15.4 ℃ (59.72 ℉). The coldest month here is June, the average maximum temperature is 19.3 ℃ (66.74 ℉). The average minimum temperature in this month is 4.8 ℃ (40.64 ℉). The most rainy month here is November, the average number of rainy days is 17.3. The least rainy month here is June, the average number of rainy days is 2.8. 
When travelling to some places in Swaziland, always consider the altitude of the the place as well. The highest point here is Emlembe (1862 m) and the lowest point is Great Usutu River (21 m). So the differences in altitudes in this country are not negligible and you should expect the weather to be different in places in different altitudes. 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 Swaziland in January is this: The average highest temperature in Swaziland in January is 25.4 ℃ (77.72 ℉). The average lowest temperature is 15.4 ℃ (59.72 ℉). At the beginning of January you can expect lower temperatures, the average highest temperature is around 24.8 ℃ (76.64 ℉). At the end of January you can expect lower temperatures, the average highest temperature is around 25.25 ℃ (77.45 ℉). The average number of rainy days in January is 16.6. The average rainfall is 253.3 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 13:45 (hours and minutes), in the middle of the month 13:36 and at the end of the month 13:20.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 Swaziland in February is this: The average highest temperature in Swaziland in February is 25.1 ℃ (77.18 ℉). The average lowest temperature is 14.6 ℃ (58.28 ℉). At the beginning of February you can expect higher temperatures, the average highest temperature is around 25.25 ℃ (77.45 ℉). At the end of February you can expect lower temperatures, the average highest temperature is around 24.95 ℃ (76.91 ℉). The average number of rainy days in February is 14.1. The average rainfall is 222.8 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 13:20 (hours and minutes), in the middle of the month 12:59 and at the end of the month 12:37.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 Swaziland in March is this: The average highest temperature in Swaziland in March is 24.8 ℃ (76.64 ℉). The average lowest temperature is 13.7 ℃ (56.66 ℉). At the beginning of March you can expect higher temperatures, the average highest temperature is around 24.95 ℃ (76.91 ℉). At the end of March you can expect lower temperatures, the average highest temperature is around 24 ℃ (75.2 ℉). The average number of rainy days in March is 13.6. The average rainfall is 147.8 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 12:37 (hours and minutes), in the middle of the month 12:14 and at the end of the month 11:50.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 Swaziland in April is this: The average highest temperature in Swaziland in April is 23.2 ℃ (73.76 ℉). The average lowest temperature is 11.5 ℃ (52.7 ℉). At the beginning of April you can expect higher temperatures, the average highest temperature is around 24 ℃ (75.2 ℉). At the end of April you can expect lower temperatures, the average highest temperature is around 22.4 ℃ (72.32 ℉). The average number of rainy days in April is 9.7. The average rainfall is 85.9 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 11:50 (hours and minutes), in the middle of the month 11:28 and at the end of the month 11:07.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 Swaziland in May is this: The average highest temperature in Swaziland in May is 21.6 ℃ (70.88 ℉). The average lowest temperature is 8.1 ℃ (46.58 ℉). At the beginning of May you can expect higher temperatures, the average highest temperature is around 22.4 ℃ (72.32 ℉). At the end of May you can expect lower temperatures, the average highest temperature is around 20.45 ℃ (68.81 ℉). The average number of rainy days in May is 5. The average rainfall is 34.3 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 11:07 (hours and minutes), in the middle of the month 10:49 and at the end of the month 10:36.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 Swaziland in June is this: The average highest temperature in Swaziland in June is 19.3 ℃ (66.74 ℉). The average lowest temperature is 4.8 ℃ (40.64 ℉). At the beginning of June you can expect higher temperatures, the average highest temperature is around 20.45 ℃ (68.81 ℉). At the end of June you can expect higher temperatures, the average highest temperature is around 19.9 ℃ (67.82 ℉). The average number of rainy days in June is 2.8. The average rainfall is 19.7 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 10:36 (hours and minutes), in the middle of the month 10:29 and at the end of the month 10:30.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 Swaziland in July is this: The average highest temperature in Swaziland in July is 20.5 ℃ (68.9 ℉). The average lowest temperature is 4.8 ℃ (40.64 ℉). At the beginning of July you can expect lower temperatures, the average highest temperature is around 19.9 ℃ (67.82 ℉). At the end of July you can expect higher temperatures, the average highest temperature is around 20.95 ℃ (69.71 ℉). The average number of rainy days in July is 3.1. The average rainfall is 20.6 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 10:30 (hours and minutes), in the middle of the month 10:37 and at the end of the month 10:50.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 Swaziland in August is this: The average highest temperature in Swaziland in August is 21.4 ℃ (70.52 ℉). The average lowest temperature is 6.9 ℃ (44.42 ℉). At the beginning of August you can expect lower temperatures, the average highest temperature is around 20.95 ℃ (69.71 ℉). At the end of August you can expect higher temperatures, the average highest temperature is around 22.3 ℃ (72.14 ℉). The average number of rainy days in August is 6.3. The average rainfall is 34.3 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 10:50 (hours and minutes), in the middle of the month 11:08 and at the end of the month 11:28.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 Swaziland in September is this: The average highest temperature in Swaziland in September is 23.2 ℃ (73.76 ℉). The average lowest temperature is 9.9 ℃ (49.82 ℉). At the beginning of September you can expect lower temperatures, the average highest temperature is around 22.3 ℃ (72.14 ℉). At the end of September you can expect higher temperatures, the average highest temperature is around 23.35 ℃ (74.03 ℉). The average number of rainy days in September is 9. The average rainfall is 69.9 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 11:28 (hours and minutes), in the middle of the month 11:51 and at the end of the month 12:14.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 Swaziland in October is this: The average highest temperature in Swaziland in October is 23.5 ℃ (74.3 ℉). The average lowest temperature is 11.7 ℃ (53.06 ℉). At the beginning of October you can expect lower temperatures, the average highest temperature is around 23.35 ℃ (74.03 ℉). At the end of October you can expect lower temperatures, the average highest temperature is around 22.85 ℃ (73.13 ℉). The average number of rainy days in October is 15.2. The average rainfall is 143.8 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 12:14 (hours and minutes), in the middle of the month 12:37 and at the end of the month 12:59.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 Swaziland in November is this: The average highest temperature in Swaziland in November is 22.2 ℃ (71.96 ℉). The average lowest temperature is 13.1 ℃ (55.58 ℉). At the beginning of November you can expect higher temperatures, the average highest temperature is around 22.85 ℃ (73.13 ℉). At the end of November you can expect higher temperatures, the average highest temperature is around 23.2 ℃ (73.76 ℉). The average number of rainy days in November is 17.3. The average rainfall is 193.9 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 12:59 (hours and minutes), in the middle of the month 13:19 and at the end of the month 13:35.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 Swaziland in December is this: The average highest temperature in Swaziland in December is 24.2 ℃ (75.56 ℉). The average lowest temperature is 14.7 ℃ (58.46 ℉). At the beginning of December you can expect lower temperatures, the average highest temperature is around 23.2 ℃ (73.76 ℉). At the end of December you can expect higher temperatures, the average highest temperature is around 24.8 ℃ (76.64 ℉). The average number of rainy days in December is 16.6. The average rainfall is 209.1 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 13:35 (hours and minutes), in the middle of the month 13:45 and at the end of the month 13:47.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.| Mbabane | temperature: - | highest temperature: 24.2 ℃ (75.56 ℉) | lowest temperature: 14.7 ℃ (58.46 ℉) | rainfall: 209.1mm | rainy days: 16.6 |
| Manzini | temperature: - | highest temperature: 27.8 ℃ (82.04 ℉) | lowest temperature: 18.4 ℃ (65.12 ℉) | rainfall: 119.4mm | rainy days: 10.8 |