Monrovia, Liberia Climate & Monthly Averages
Monrovia has a tropical rainforest climate. April is the hottest month, averaging 85° by day; August is the coldest at 80°.
Rain, not cold, divides the year in Monrovia
Monrovia has one of the steadier climates in our dataset. Average highs move only 2°C across the whole year - from 80°F (26°C) in August to 85°F (29°C) in April - so the practical difference between seasons here is rainfall and daylight, not warmth.
The wet-and-dry rhythm at a glance
April is the warm end of the year, averaging 85°F (29°C) by day and 77°F (25°C) overnight. August bottoms out at 80°F (26°C) in daylight, 74°F (23°C) after dark. The gridded 2015-2024 daily record for this location tops out at 92°F (34°C) and bottoms at 69°F (20°C) - decade extremes, not all-time station records. Days and nights are about 4°C apart on average - narrower than almost anywhere else we cover.
Between the average April and the average August lie 2°C, a narrower spread than all but 6% of the 3496 cities in our dataset. Sunshine averages 8.7 hours a day over the year, peaking in February at 10.2 hours.
More climate facts for Monrovia
- Hottest month: April - highs near 85°F (29°C)
- Coldest month: August - highs near 80°F (26°C)
- Decade extremes (2015-2024): 92°F (34°C) high · 69°F (20°C) low
- Wettest month: August (28 rainy days) · Sunniest: February (10.2 h sun/day)
- Climate type: tropical rainforest
- Annual swing: 2°C between the average warmest and coolest month · day to night: 4°C
- Average humidity: 88%
Choosing the right part of the year in Monrovia
Choose dates by rain, not just temperature
The best time to visit Monrovia 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 81°F (27°C), with rain on about 29 days a month. For the same question asked the other way round, see where else is warm in May.
What the humidity changes
Pack for Monrovia 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. April nights average 77°F (25°C), so evenings rarely match the afternoons.
Warm all year: the monthly rain pattern
Each card shows the average high and low. The bar places that month between Monrovia's coldest night and warmest afternoon.
January
- Rain
- 18 days
- Sunshine
- 10.0 h
- Daylight
- 11.8 h
February
- Rain
- 16 days
- Sunshine
- 10.2 h
- Daylight
- 11.9 h
March
- Rain
- 21 days
- Sunshine
- 9.7 h
- Daylight
- 12.1 h
April
- Rain
- 26 days
- Sunshine
- 9.5 h
- Daylight
- 12.3 h
May
- Rain
- 30 days
- Sunshine
- 8.4 h
- Daylight
- 12.4 h
June
- Rain
- 30 days
- Sunshine
- 7.4 h
- Daylight
- 12.5 h
July
- Rain
- 29 days
- Sunshine
- 7.3 h
- Daylight
- 12.5 h
August
- Rain
- 28 days
- Sunshine
- 6.6 h
- Daylight
- 12.3 h
September
- Rain
- 29 days
- Sunshine
- 6.7 h
- Daylight
- 12.1 h
October
- Rain
- 30 days
- Sunshine
- 8.4 h
- Daylight
- 12.0 h
November
- Rain
- 28 days
- Sunshine
- 9.5 h
- Daylight
- 11.8 h
December
- Rain
- 20 days
- Sunshine
- 10.1 h
- Daylight
- 11.8 h
Looking for warmer alternatives? Browse warm places by month, or compare Monrovia's coolest part of the year: August, July, September.
Monthly temperature and rain table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 85° | 75° | 18 | 2.8 in | 10.0 h/day | 11.8 h | 59% | 85% |
| February | 85° | 76° | 16 | 2.8 in | 10.2 h/day | 11.9 h | 56% | 86% |
| March | 85° | 76° | 21 | 4.7 in | 9.7 h/day | 12.1 h | 68% | 87% |
| April | 85° | 77° | 26 | 6.2 in | 9.5 h/day | 12.3 h | 86% | 87% |
| May | 84° | 76° | 30 | 13.2 in | 8.4 h/day | 12.4 h | 95% | 89% |
| June | 82° | 74° | 30 | 22.6 in | 7.4 h/day | 12.5 h | 99% | 90% |
| July | 80° | 74° | 29 | 19.2 in | 7.3 h/day | 12.5 h | 93% | 87% |
| August | 80° | 74° | 28 | 23.8 in | 6.6 h/day | 12.3 h | 92% | 88% |
| September | 80° | 74° | 29 | 22.2 in | 6.7 h/day | 12.1 h | 96% | 91% |
| October | 82° | 74° | 30 | 13.6 in | 8.4 h/day | 12.0 h | 97% | 90% |
| November | 83° | 74° | 28 | 7.2 in | 9.5 h/day | 11.8 h | 95% | 89% |
| December | 85° | 75° | 20 | 3.3 in | 10.1 h/day | 11.8 h | 64% | 85% |
How Monrovia compares for rain and warmth
- Annual precipitation is 141.7 inches (3598 mm) - wetter than any other city in our 3496-city dataset.
- Rain or snow reaches the ground on 305 days a year - more wet days than any other city in our 3496-city dataset.
- Relative humidity averages 88% - more humid than any other city in our 3496-city dataset.
These comparisons use the same ten-year window for every city in the dataset.
How the calendar changes in warm-weather Monrovia
March through May
March through May runs hot here - highs near 84°F (29°C), nights near 76°F (25°C), and rain falls on around 76 of the 90 days.
June through August
June through August is mild and warm here - highs near 80°F (27°C), nights near 74°F (23°C), and rain falls on around 87 of the 90 days.
September through November
September through November in Monrovia is hot, with daytime highs averaging 82°F (28°C) and nights around 74°F (23°C); rain falls on around 88 of the 90 days.
December through February
December through February in Monrovia is hot, with daytime highs averaging 85°F (29°C) and nights around 75°F (24°C); rain falls on around 54 of the 90 days. Daylight is generous - around 10.1 hours of sun a day.
Questions about heat and rain in Monrovia
What is the average temperature in Monrovia?
How much sun does Monrovia get?
How hot does Monrovia get in summer?
How cold does Monrovia get in winter?
What should I pack for Monrovia?
Is Monrovia warmer or cooler than most cities?
Monrovia temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.