Asmara, Eritrea Climate & Monthly Averages
The climate of Asmara
There is not much of a seasonal calendar in Asmara. Its warmest and coolest months differ by 6°C, against a dataset median nearer 15°C, which leaves 77°F (25°C) in June and 67°F (19°C) in December as the two ends of the year.
Climate quick facts
- Hottest month: June - highs near 77°F (25°C)
- Coldest month: December - highs near 67°F (19°C)
- Decade extremes (2015-2024): 85°F (30°C) high · 39°F (4°C) low
- Wettest month: August (21 rainy days) · Sunniest: June (11.9 h sun/day)
- Climate type: subtropical highland
- Annual swing: 6°C between the average warmest and coolest month · day to night: 10°C
- Average humidity: 62%
Temperatures through the year
Relative humidity averages 62% across the year, drier than about 83% of the cities we track. December is the coolest month, with highs of 67°F (19°C) and lows near 49°F (10°C). At its warmest, in June, Asmara runs to 77°F (25°C) in the afternoon and back to 58°F (15°C) by dawn. June is the brightest month at 11.9 hours of sun a day, against an annual average of 11.0 - sunnier than 95% of the 3496 cities in our dataset.
Rain, sun and snow
Precipitation concentrates in August - 5.7 inches (145 mm) on 21 days - and thins out by September. Between the average June and the average December lie 6°C, a narrower spread than about 85% of the cities we track. The gridded 2015-2024 daily record for this location tops out at 85°F (30°C) and bottoms at 39°F (4°C) - decade extremes, not all-time station records.
How Asmara compares
- Asmara sits close to the middle of our dataset on most measures: 62°F (17°C) as an annual average, 22.9 inches (582 mm) of precipitation and 11.0 hours of sun a day.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 68° | 49° | 6 | 0.8 in | 10.9 h/day | 11.3 h | 21% | 63% |
| February | 72° | 52° | 7 | 0.8 in | 10.9 h/day | 11.6 h | 24% | 57% |
| March | 75° | 54° | 7 | 0.9 in | 11.1 h/day | 12.0 h | 23% | 51% |
| April | 75° | 56° | 14 | 2.4 in | 11.7 h/day | 12.5 h | 45% | 56% |
| May | 75° | 57° | 10 | 1.8 in | 11.8 h/day | 12.8 h | 32% | 52% |
| June | 77° | 58° | 6 | 0.9 in | 11.9 h/day | 13.0 h | 21% | 48% |
| July | 72° | 57° | 20 | 4.5 in | 9.9 h/day | 13.0 h | 65% | 73% |
| August | 71° | 57° | 21 | 5.7 in | 9.6 h/day | 12.6 h | 69% | 78% |
| September | 74° | 56° | 3 | 0.7 in | 11.2 h/day | 12.2 h | 11% | 57% |
| October | 71° | 53° | 8 | 1.4 in | 11.3 h/day | 11.8 h | 27% | 63% |
| November | 68° | 51° | 10 | 1.9 in | 10.9 h/day | 11.4 h | 34% | 74% |
| December | 67° | 49° | 8 | 1.1 in | 10.7 h/day | 11.2 h | 25% | 73% |
Asmara month by month
Average high and low for each month, with the bar showing where it sits in Asmara's year (left is the coldest night, right is the warmest afternoon).
January
- Rain
- 6 days
- Sunshine
- 10.9 h
- Daylight
- 11.3 h
February
- Rain
- 7 days
- Sunshine
- 10.9 h
- Daylight
- 11.6 h
March
- Rain
- 7 days
- Sunshine
- 11.1 h
- Daylight
- 12.0 h
April
- Rain
- 14 days
- Sunshine
- 11.7 h
- Daylight
- 12.5 h
May
- Rain
- 10 days
- Sunshine
- 11.8 h
- Daylight
- 12.8 h
June
- Rain
- 6 days
- Sunshine
- 11.9 h
- Daylight
- 13.0 h
July
- Rain
- 20 days
- Sunshine
- 9.9 h
- Daylight
- 13.0 h
August
- Rain
- 21 days
- Sunshine
- 9.6 h
- Daylight
- 12.6 h
September
- Rain
- 3 days
- Sunshine
- 11.2 h
- Daylight
- 12.2 h
October
- Rain
- 8 days
- Sunshine
- 11.3 h
- Daylight
- 11.8 h
November
- Rain
- 10 days
- Sunshine
- 10.9 h
- Daylight
- 11.4 h
December
- Rain
- 8 days
- Sunshine
- 10.7 h
- Daylight
- 11.2 h
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons in Asmara
Spring (March through May)
Spring is mild and warm here - highs near 75°F (24°C), nights near 56°F (13°C), and rain falls on around 30 of the 90 days. Daylight is generous - around 11.5 hours of sun a day.
Summer (June through August)
Through summer, Asmara settles into easy warmth: 73°F (23°C) by day, 58°F (14°C) after dark, and rain falls on around 48 of the 90 days. Daylight is generous - around 10.5 hours of sun a day.
Fall (September through November)
Fall in Asmara brings comfortable warmth, with daytime highs averaging 71°F (22°C) and nights around 53°F (12°C); expect showers on roughly 22 days across the season. Daylight is generous - around 11.1 hours of sun a day.
Winter (December through February)
Winter settles into easy warmth here - highs near 69°F (20°C), nights near 50°F (10°C), and expect showers on roughly 21 days across the season. Daylight is generous - around 10.8 hours of sun a day.
Climate questions, answered
What should I wear in Asmara?
How warm is Asmara on average?
How much sun does Asmara get?
How often does it rain in Asmara?
Best time to visit Asmara
December to March and June is the sweet spot for Asmara - warm days, manageable rainfall and plenty of daylight line up. Expect 72°F (22°C) in the afternoon and around 6 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in December.
Pack for Asmara with a compact umbrella or rain shell. Even in June, lows of 58°F (15°C) make an extra layer worth the space.
Asmara temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.