Fomboni in Summer
In summer (December, January and February), Fomboni sees average daytime highs around 28°C and overnight lows near 27°C, with 410 mm of rain over about 48 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 26% of the time across summer, and the air most often feels oppressive.
Summer is Fomboni's weakest season of the year to visit on our travel score. Fomboni has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Fomboni's year-round climate.
- Avg daytime high
- 28°C
- warmest season of the year
- Avg overnight low
- 27°C
- Rainfall
- 410 mm
- 48 wet days
- Avg wind
- 14 km/h
- Travel score
- 5.3
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Fomboni in Summer
Across summer, daytime highs hold fairly steady around 28°C.
A typical summer day in Fomboni reaches about 28°C and drops to 27°C overnight. The warmest of the three months is February, the coolest December.
How summer really feels in Fomboni
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Fomboni weather by month
How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 27° | 168 | 17.6 | 12.6 | 5.1 |
| Feb | 28° / 27° | 159 | 16.9 | 12.4 | 4.8 |
| Mar | 28° / 27° | 139 | 19.5 | 12.1 | 4.7 |
| Apr | 28° / 27° | 88 | 14.1 | 11.7 | 5.8 |
| May | 27° / 26° | 31 | 6.9 | 11.4 | 7.4 |
| Jun | 26° / 25° | 17 | 4.1 | 11.3 | 8.1 |
| Jul | 25° / 24° | 13 | 3.3 | 11.4 | 8.5 |
| Aug | 25° / 24° | 8 | 2.4 | 11.6 | 8.8 |
| Sep | 25° / 24° | 7 | 2.2 | 11.9 | 8.8 |
| Oct | 26° / 25° | 13 | 3.2 | 12.3 | 8.4 |
| Nov | 27° / 26° | 31 | 4.9 | 12.6 | 7.8 |
| Dec | 28° / 26° | 84 | 13 | 12.7 | 6.1 |
Cloud cover in Summer
The sky is clear or mostly clear about 26% of the time across summer.
Chance of precipitation in Summer
Fomboni gets around 410 mm of rain over 48 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 14 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 42 min in early December to 12 h 18 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.1 kWh/m².
Hazard calendar for Fomboni
In summer, Fomboni overlaps its cyclone and rainy season season. The full year is below, with each hazard's peak months called out.
Fomboni sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Fomboni's rainy season runs December–April, when most of the year's rain falls.
Is summer a good time to visit Fomboni?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Fomboni for sightseeing.
What to pack for Fomboni in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Fomboni sees daytime highs around 28°C and nights near 27°C. Pack light clothes, rain gear and sun protection. About 48 days see rain.
Sea temperature near Fomboni in Summer
The nearest coast averages about 29°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 km away) is warmest in March at about 30°C and coldest in August near 26°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29 | 29 | 30 | 29 | 28 | 27 | 26 | 26 | 26 | 27 | 28 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 30 | Tropical |
| Apr | 29 | Tropical |
| May | 28 | Tropical |
| Jun | 27 | Warm |
| Jul | 26 | Warm |
| Aug | 26 | Warm |
| Sep | 26 | Warm |
| Oct | 27 | Warm |
| Nov | 28 | Warm |
| Dec | 29 | Tropical |
UV index in Fomboni in Summer
Clear-sky midday UV across summer averages around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Fomboni peaks around February 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 9 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 15 | 14 | 12 | 10 | 9 | 9 | 11 | 12 | 13 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 12 | Extreme |
| May | 10 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
Where is Fomboni?
Fomboni sits at 12.3°S, 43.7°E, 18 m above sea level, in Comoros. The nearest listed city is Moutsamoudou, 73 km away.
Topography around Fomboni
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Fomboni.
Within 3 km, the terrain around Fomboni has significant variations in elevation — a maximum elevation change of 554 m around an average of 100 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 780 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,346 m.
The land around Fomboni is covered by trees (52%) and water (39%) within 3 km, water (75%) and trees (24%) within 16 km, and water (92%) within 80 km.
Comoros travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 220 V · 50 Hz
- Prices
- ≈ 49% of US
- price level, 2025
- GDP per capita
- $2,056
- 2025
- Happiness
- 3.9 / 10
- World Happiness, 2025
- Road deaths
- 26.6
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Fomboni (-12.2876°, 43.7434°, elevation 18 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.