Moroni, Comoros Climate & Monthly Averages
The climate of Moroni
Temperature barely moves in Moroni - 3°C between the average March and the average August. Rainfall does the work instead: 20.3 inches (515 mm) in January against 4.0 inches (100 mm) in June.
Climate quick facts
- Hottest month: March - highs near 85°F (30°C)
- Coldest month: August - highs near 81°F (27°C)
- Decade extremes (2015-2024): 97°F (36°C) high · 61°F (16°C) low
- Wettest month: January (26 rainy days) · Sunniest: October (11.9 h sun/day)
- Climate type: tropical rainforest
- Annual swing: 3°C between the average warmest and coolest month · day to night: 5°C
- Months averaging 30°C or hotter: 1
- Average humidity: 86%
Temperatures through the year
Days and nights are about 5°C apart on average - narrower than all but 5% of the 3496 cities in our dataset. At its warmest, in March, Moroni runs to 85°F (30°C) in the afternoon and back to 78°F (25°C) by dawn. August bottoms out at 81°F (27°C) in daylight, 69°F (21°C) after dark. The gridded 2015-2024 daily record for this location tops out at 97°F (36°C) and bottoms at 61°F (16°C) - decade extremes, not all-time station records. Relative humidity averages 86% across the year, more humid than almost anywhere else we cover - enough that summer afternoons feel hotter than the thermometer says, which is what the dew point converter is for.
Rain, sun and snow
Precipitation concentrates in January - 20.3 inches (515 mm) on 26 days - and thins out by June. Between the average March and the average August lie 3°C, a narrower spread than all but 10% of the 3496 cities in our dataset. October 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.
How Moroni compares
- Rain or snow reaches the ground on 273 days a year - more wet days than 97% of the 3496 cities we track.
- Annual precipitation is 104.1 inches (2644 mm) - wetter than 96% of the 3496 cities we track.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 84° | 77° | 26 | 20.3 in | 9.6 h/day | 12.7 h | 85% | 89% |
| February | 85° | 77° | 25 | 11.4 in | 9.9 h/day | 12.5 h | 87% | 89% |
| March | 85° | 78° | 27 | 12.7 in | 10.7 h/day | 12.2 h | 86% | 88% |
| April | 85° | 77° | 26 | 14.0 in | 10.7 h/day | 11.9 h | 88% | 88% |
| May | 84° | 75° | 24 | 8.0 in | 11.0 h/day | 11.6 h | 76% | 86% |
| June | 82° | 72° | 21 | 4.0 in | 10.9 h/day | 11.4 h | 71% | 85% |
| July | 81° | 70° | 19 | 4.1 in | 10.9 h/day | 11.5 h | 60% | 83% |
| August | 81° | 69° | 22 | 5.2 in | 11.4 h/day | 11.7 h | 71% | 85% |
| September | 82° | 70° | 20 | 5.1 in | 11.8 h/day | 12.1 h | 67% | 85% |
| October | 84° | 73° | 17 | 4.4 in | 11.9 h/day | 12.4 h | 55% | 83% |
| November | 86° | 76° | 20 | 5.9 in | 11.8 h/day | 12.7 h | 67% | 83% |
| December | 86° | 77° | 27 | 9.2 in | 11.3 h/day | 12.8 h | 86% | 86% |
Moroni month by month
Average high and low for each month, with the bar showing where it sits in Moroni's year (left is the coldest night, right is the warmest afternoon).
January
- Rain
- 26 days
- Sunshine
- 9.6 h
- Daylight
- 12.7 h
February
- Rain
- 25 days
- Sunshine
- 9.9 h
- Daylight
- 12.5 h
March
- Rain
- 27 days
- Sunshine
- 10.7 h
- Daylight
- 12.2 h
April
- Rain
- 26 days
- Sunshine
- 10.7 h
- Daylight
- 11.9 h
May
- Rain
- 24 days
- Sunshine
- 11.0 h
- Daylight
- 11.6 h
June
- Rain
- 21 days
- Sunshine
- 10.9 h
- Daylight
- 11.4 h
July
- Rain
- 19 days
- Sunshine
- 10.9 h
- Daylight
- 11.5 h
August
- Rain
- 22 days
- Sunshine
- 11.4 h
- Daylight
- 11.7 h
September
- Rain
- 20 days
- Sunshine
- 11.8 h
- Daylight
- 12.1 h
October
- Rain
- 17 days
- Sunshine
- 11.9 h
- Daylight
- 12.4 h
November
- Rain
- 20 days
- Sunshine
- 11.8 h
- Daylight
- 12.7 h
December
- Rain
- 27 days
- Sunshine
- 11.3 h
- Daylight
- 12.8 h
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons in Moroni
September through November
September through November in Moroni runs hot, with daytime highs averaging 84°F (29°C) and nights around 73°F (23°C); rain falls on around 57 of the 90 days. Daylight is generous - around 11.8 hours of sun a day.
December through February
December through February sits firmly in the heat here - highs near 85°F (30°C), nights near 77°F (25°C), and rain falls on around 78 of the 90 days. Daylight is generous - around 10.3 hours of sun a day.
March through May
March through May runs hot here - highs near 85°F (29°C), nights near 76°F (25°C), and rain falls on around 77 of the 90 days. Daylight is generous - around 10.8 hours of sun a day.
June through August
Through June through August, Moroni brings hot afternoons: 82°F (28°C) by day, 70°F (21°C) after dark, and rain falls on around 62 of the 90 days. Daylight is generous - around 11.1 hours of sun a day.
Climate questions, answered
How hot does Moroni get in summer?
Is Moroni warmer or cooler than most cities?
How cold does Moroni get in winter?
How much sun does Moroni get?
How humid does Moroni get?
Best time to visit Moroni
The best time to visit Moroni is generally May to October, when humidity and rainfall are at their lowest, which is what actually varies here. Daytime temperatures in that window sit near 82°F (28°C), with rain on about 20 days a month. For the same question asked the other way round, see where else is warm in May.
Pack for Moroni with light clothing for the warm months, proper waterproofs rather than an umbrella - wet days are the norm here and moisture-wicking fabrics for the humidity. Even in March, lows of 78°F (25°C) make an extra layer worth the space.
Moroni temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.