Asmara, Eritrea Climate & Monthly Averages
Asmara has a subtropical highland climate. June is the hottest month, averaging 77° by day; December is the coldest at 67°.
Temperature stays steady in Asmara; moisture changes
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.
What changes when temperature does not
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.
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.
More climate facts for Asmara
- 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%
Pick dates by rain and sunshine in Asmara
Choose dates by rain, not just temperature
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.
What to pack
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.
Where Asmara sits among other climates
- 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.
These comparisons use the same ten-year window for every city in the dataset.
Small temperature shifts, month by month
Each card shows the average high and low. The bar places that month between Asmara's coldest night and 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
Looking for warmer alternatives? Browse warm places by month, or compare Asmara's coolest part of the year: December, January, November.
Monthly temperature and rain 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% |
Questions about Asmara's even temperatures
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The subtle seasons of 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.
Asmara temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.