Fomboni climate by month
What the weather is like
Fomboni has a tropical savanna climate (Köppen Aw): .
The warmest month is March, when afternoons average 28° and nights 26°. August is the coolest month, with highs of 25° and lows of 24°. The difference between the warmest and the coolest month is about 3°, a small seasonal swing typical of places tempered by the sea.
About 1,339 mm of precipitation falls in an average year. January is the wettest month (246 mm, 26 wet days) and September the driest (32 mm, 7 wet days). Cloud cover ranges from 9% in August to 52% in February.
The sea reaches about 30° in March. Sea temperatures lag the air by a month or two, so late summer is usually warmer for swimming than early summer.
Compared with Moroni, the capital, Fomboni is 0.4° cooler on a March afternoon and receives less precipitation over the year.
Year in figures
- Hottest afternoons
- 28° · March
- Coldest nights
- 24° · August
- Wettest month
- January
- Driest month
- September
- Clearest skies
- August · 9% cloud
- Warmest sea
- 30° · March
- Longest day
- 12 h 50 min
- Shortest day
- 11 h 24 min
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columns, sea temperature lineTemperature curve
Average high, low and seaDaylight
Hours between sunrise and sunset on the 15th of each monthClimate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 28° | 28° | 28° | 28° | 27° | 26° | 25° | 25° | 25° | 26° | 27° | 27° |
| Average low | 26° | 26° | 26° | 27° | 26° | 25° | 24° | 24° | 24° | 25° | 26° | 26° |
| Precipitation | 246 mm | 204 mm | 199 mm | 143 mm | 88 mm | 63 mm | 43 mm | 36 mm | 32 mm | 56 mm | 71 mm | 158 mm |
| Wet days (≥1 mm) | 25.8 | 23.7 | 25.5 | 25 | 14.8 | 9.3 | 12.7 | 7.3 | 7.2 | 7.2 | 11.2 | 14.8 |
| Cloud cover | 51% | 52% | 40% | 21% | 13% | 12% | 12% | 9% | 9% | 10% | 16% | 33% |
| Sea temperature | 29° | 29° | 30° | 29° | 28° | 27° | 26° | 26° | 26° | 27° | 28° | 29° |
| Daylight | 12h 46 | 12h 30 | 12h 11 | 11h 50 | 11h 33 | 11h 24 | 11h 28 | 11h 42 | 12h 01 | 12h 22 | 12h 40 | 12h 50 |
| Month score | 47 | 46 | 50 | 55 | 58 | 74 | 70 | 83 | 83 | 80 | 66 | 56 |