Climate averages 1991–2020
Moroni weather
in May.
A hot, moderately wet month: the 8th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Moroni: daytime highs average 28.6°C and nights cool to about 25.3°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 63 mm of rain on roughly 17 days, which makes May a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 35 min on an average May day.
The nearest other city in this atlas is Mamoudzou (246 km away). In May its highs average 27.6°C, 1.0°C cooler than Moroni, with 21 mm of rain.
From May to June, average highs fall by 1.3°C to 27.2°C, and monthly rainfall falls from 63 mm to 44 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Mamoudzou in MayMayotte · 246 kmHigh 27.6°C · Low 25.8°C · 21 mm rain
- Pemba in MayMozambique · 329 kmHigh 28.6°C · Low 22.4°C · 23 mm rain
- Mtwara in MayTanzania · 371 kmHigh 28.9°C · Low 23.9°C · 37 mm rain
- Nacala in MayMozambique · 423 kmHigh 27.9°C · Low 22.0°C · 18 mm rain
- Lindi in MayTanzania · 430 kmHigh 29.7°C · Low 22.8°C · 36 mm rain
- Montepuez in MayMozambique · 488 kmHigh 27.7°C · Low 18.5°C · 4.2 mm rain
- Masasi in MayTanzania · 498 kmHigh 29.3°C · Low 19.5°C · 11 mm rain
- Mahajanga in MayMadagascar · 556 kmHigh 31.8°C · Low 23.3°C · 6.4 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.