Do you need to know, when is the best time to go to Eritrea? Then you should take a look here, what weather you can expect there during the year.
The climate of Eritrea is hot and dry along the Red Sea coast, but the weather is cooler and wetter in the central highlands. You can expect even cold weather there in winter. The climate is semiarid in western hills and lowlands.
When speaking about the usual weather in this state, the information is relevant for example for these popular places: Asmara, Central Eritrea, Coastal Eritrea, Keren, Massawa, Nakfa.
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 May, the average maximum temperature is 25.7 ℃ (78.26 ℉). The average minimum temperature in this month is 10.9 ℃ (51.62 ℉). The coldest month here is August, the average maximum temperature is 21.4 ℃ (70.52 ℉). The average minimum temperature in this month is 11.3 ℃ (52.34 ℉). 
When travelling to some places in Eritrea, always consider the altitude of the the place as well. The highest point here is Soira (3018 m) and the lowest point is near Kulul within the Danakil Depression (-75 m). So there are huge differences in altitudes in this country and the weather is very different in them therefore. 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 Eritrea in January is this: The average highest temperature in Eritrea in January is 23 ℃ (73.4 ℉). The average lowest temperature is 5.9 ℃ (42.62 ℉). At the beginning of January you can expect lower temperatures, the average highest temperature is around 22.25 ℃ (72.05 ℉). At the end of January you can expect higher temperatures, the average highest temperature is around 23.45 ℃ (74.21 ℉). The average rainfall is 2.1 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 11:14 (hours and minutes), in the middle of the month 11:19 and at the end of the month 11:27.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 Eritrea in February is this: The average highest temperature in Eritrea in February is 23.9 ℃ (75.02 ℉). The average lowest temperature is 6.8 ℃ (44.24 ℉). At the beginning of February you can expect lower temperatures, the average highest temperature is around 23.45 ℃ (74.21 ℉). At the end of February you can expect higher temperatures, the average highest temperature is around 24.4 ℃ (75.92 ℉). The average rainfall is 2.1 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 11:27 (hours and minutes), in the middle of the month 11:38 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 Eritrea in March is this: The average highest temperature in Eritrea in March is 24.9 ℃ (76.82 ℉). The average lowest temperature is 8.9 ℃ (48.02 ℉). At the beginning of March you can expect lower temperatures, the average highest temperature is around 24.4 ℃ (75.92 ℉). At the end of March you can expect higher temperatures, the average highest temperature is around 24.95 ℃ (76.91 ℉). The average rainfall is 12 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 12:03 and at the end of the month 12:16.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 Eritrea in April is this: The average highest temperature in Eritrea in April is 25 ℃ (77 ℉). The average lowest temperature is 10.3 ℃ (50.54 ℉). At the beginning of April you can expect lower temperatures, the average highest temperature is around 24.95 ℃ (76.91 ℉). At the end of April you can expect higher temperatures, the average highest temperature is around 25.35 ℃ (77.63 ℉). The average rainfall is 36.1 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 12:16 (hours and minutes), in the middle of the month 12:28 and at the end of the month 12:40.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 Eritrea in May is this: The average highest temperature in Eritrea in May is 25.7 ℃ (78.26 ℉). The average lowest temperature is 10.9 ℃ (51.62 ℉). At the beginning of May you can expect lower temperatures, the average highest temperature is around 25.35 ℃ (77.63 ℉). At the end of May you can expect lower temperatures, the average highest temperature is around 25.4 ℃ (77.72 ℉). The average rainfall is 42.9 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 12:40 (hours and minutes), in the middle of the month 12:50 and at the end of the month 12:57.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 Eritrea in June is this: The average highest temperature in Eritrea in June is 25.1 ℃ (77.18 ℉). The average lowest temperature is 11.3 ℃ (52.34 ℉). At the beginning of June you can expect higher temperatures, the average highest temperature is around 25.4 ℃ (77.72 ℉). At the end of June you can expect lower temperatures, the average highest temperature is around 23.55 ℃ (74.39 ℉). The average rainfall is 42.4 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 12:57 (hours and minutes), in the middle of the month 13:01 and at the end of the month 13:01.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 Eritrea in July is this: The average highest temperature in Eritrea in July is 22 ℃ (71.6 ℉). The average lowest temperature is 11.4 ℃ (52.52 ℉). At the beginning of July you can expect higher temperatures, the average highest temperature is around 23.55 ℃ (74.39 ℉). At the end of July you can expect lower temperatures, the average highest temperature is around 21.7 ℃ (71.06 ℉). The average rainfall is 176.7 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 13:01 (hours and minutes), in the middle of the month 12:57 and at the end of the month 12:49.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 Eritrea in August is this: The average highest temperature in Eritrea in August is 21.4 ℃ (70.52 ℉). The average lowest temperature is 11.3 ℃ (52.34 ℉). At the beginning of August you can expect higher temperatures, the average highest temperature is around 21.7 ℃ (71.06 ℉). At the end of August you can expect higher temperatures, the average highest temperature is around 22.25 ℃ (72.05 ℉). The average rainfall is 164.4 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 12:49 (hours and minutes), in the middle of the month 12:39 and at the end of the month 12:28.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 Eritrea in September is this: The average highest temperature in Eritrea in September is 23.1 ℃ (73.58 ℉). The average lowest temperature is 8.8 ℃ (47.84 ℉). At the beginning of September you can expect lower temperatures, the average highest temperature is around 22.25 ℃ (72.05 ℉). At the end of September you can expect lower temperatures, the average highest temperature is around 22.55 ℃ (72.59 ℉). The average rainfall is 25.9 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 12:28 (hours and minutes), in the middle of the month 12:15 and at the end of the month 12:03.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 Eritrea in October is this: The average highest temperature in Eritrea in October is 22 ℃ (71.6 ℉). The average lowest temperature is 8.9 ℃ (48.02 ℉). At the beginning of October you can expect higher temperatures, the average highest temperature is around 22.55 ℃ (72.59 ℉). At the end of October you can expect lower temperatures, the average highest temperature is around 21.75 ℃ (71.15 ℉). The average rainfall is 11.9 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 12:03 (hours and minutes), in the middle of the month 11:50 and at the end of the month 11:38.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 Eritrea in November is this: The average highest temperature in Eritrea in November is 21.5 ℃ (70.7 ℉). The average lowest temperature is 7.9 ℃ (46.22 ℉). At the beginning of November you can expect higher temperatures, the average highest temperature is around 21.75 ℃ (71.15 ℉). At the end of November you can expect lower temperatures, the average highest temperature is around 21.5 ℃ (70.7 ℉). The average rainfall is 16.4 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 11:38 (hours and minutes), in the middle of the month 11:27 and at the end of the month 11:19.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 Eritrea in December is this: The average highest temperature in Eritrea in December is 21.5 ℃ (70.7 ℉). The average lowest temperature is 6.4 ℃ (43.52 ℉). At the beginning of December you can expect lower temperatures, the average highest temperature is around 21.5 ℃ (70.7 ℉). At the end of December you can expect higher temperatures, the average highest temperature is around 22.25 ℃ (72.05 ℉). The average rainfall is 3.7 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 11:19 (hours and minutes), in the middle of the month 11:14 and at the end of the month 11:13.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.| Assab | temperature: - | highest temperature: 31.2 ℃ (88.16 ℉) | lowest temperature: 21.8 ℃ (71.24 ℉) | rainfall: 16.9mm | rainy days: - |
| Asmara | temperature: - | highest temperature: 21.5 ℃ (70.7 ℉) | lowest temperature: 6.4 ℃ (43.52 ℉) | rainfall: 3.7mm | rainy days: - |