Climate averages 1991–2020
Moroni weather
in August.
A warm, fairly dry month: the 11th warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Moroni: daytime highs average 27.0°C and nights cool to about 22.4°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 27 mm of rain on roughly 10 days, which makes August a fairly dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 44 min on an average August day.
The nearest other city in this atlas is Mamoudzou (246 km away). In August its highs average 25.6°C, 1.4°C cooler than Moroni, with 9.6 mm of rain.
From August to September, average highs rise by 0.9°C to 27.9°C, and monthly rainfall falls from 27 mm to 20 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Moroni climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.6°C26.1°C | 26.1°C | 240 | 22.8 | 12.713 h |
| February | 29.6°C26.1°C | 26.1°C | 213 | 21.7 | 12.512 h |
| March | 29.8°C26.1°C | 26.1°C | 199 | 25.8 | 12.212 h |
| April | 29.6°C26.0°C | 26.0°C | 124 | 22.6 | 11.812 h |
| May | 28.6°C25.3°C | 25.3°C | 63 | 17.1 | 11.612 h |
| June | 27.2°C24.0°C | 24.0°C | 44 | 15.2 | 11.411 h |
| July | 26.6°C23.1°C | 23.1°C | 40 | 15.2 | 11.512 h |
| August, selected | 27.0°C22.4°C | 22.4°C | 27 | 10.3 | 11.712 h |
| September | 27.9°C22.8°C | 22.8°C | 20 | 7.4 | 12.012 h |
| October | 29.0°C24.0°C | 24.0°C | 33 | 9.0 | 12.412 h |
| November | 29.7°C25.2°C | 25.2°C | 69 | 13.2 | 12.613 h |
| December | 30.0°C25.9°C | 25.9°C | 166 | 21.0 | 12.813 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Mamoudzou in AugustMayotte · 246 kmHigh 25.6°C · Low 23.2°C · 9.6 mm rain
- Pemba in AugustMozambique · 329 kmHigh 27.6°C · Low 20.2°C · 11 mm rain
- Mtwara in AugustTanzania · 371 kmHigh 27.9°C · Low 22.0°C · 5.7 mm rain
- Nacala in AugustMozambique · 423 kmHigh 26.5°C · Low 19.6°C · 8.5 mm rain
- Lindi in AugustTanzania · 430 kmHigh 29.4°C · Low 20.8°C · 5.5 mm rain
- Montepuez in AugustMozambique · 488 kmHigh 27.7°C · Low 16.8°C · 1.9 mm rain
- Masasi in AugustTanzania · 498 kmHigh 29.2°C · Low 17.8°C · 1.4 mm rain
- Mahajanga in AugustMadagascar · 556 kmHigh 31.3°C · Low 20.9°C · 1.2 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Moroni) is explained once on the Moroni year overview and on the Sources, method and limits page.