Monrovia climate — normals and trends
Monrovia (Liberia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 25.8 °C and it receives 3,390 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is April (26.7 °C on average) and the coldest is August (24.7 °C). Rainfall peaks in September.
Monrovia averages 0 frost days, 9 hot days (≥ 30 °C) and 325 rainy days per year.
Monrovia has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The hottest day of the period reached 31.7 °C (on 22 January 2016) and the coldest 21.3 °C (on 7 January 1989).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
MonroviaMontserrado County
- coords
- 6.30°, -10.80°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.8°C
Average daily high
27.7°C
Average daily low
24.3°C
Annual rainfall
3,390mm
Sunshine / day
9.8h
Mean relative humidity
87%
Average peak wind
12.6km/h
Seasonal range
2.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
9 d/yr
Rainy days (≥ 1 mm)
325 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.4 °C
Average feels-like low
28.6 °C
Average peak gust
26.2 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
17.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.70 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
31.7 °C
22 January 2016
Coldest day
21.3 °C
7 January 1989
Wettest day
425 mm
11 June 2017
Windiest day
33.4 km/h
10 September 2021
Strongest gust
62.6 km/h
10 September 2021
Hottest feels-like
40.5 °C
14 April 2024
Coldest feels-like
21.5 °C
6 January 2016
Sunniest day
12.0 h
30 May 1951
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 29.8 °C | +1.5 °C | 74 mm | -19 mm |
| Feb | 29.8 °C | +1.3 °C | 119 mm | +2 mm |
| Mar | 29.6 °C | +0.9 °C | 110 mm | -62 mm |
| Apr | 29.6 °C | +0.8 °C | 190 mm | -46 mm |
| May | 29.2 °C | +0.8 °C | 383 mm | +48 mm |
| Jun | 27.7 °C | +0.5 °C | 512 mm | +64 mm |
| Jul | 26.6 °C | +0.3 °C | 294 mm | -91 mm |
| Aug | 26.0 °C | 0.0 °C | 473 mm | +50 mm |
| Sep | 27.0 °C | +0.5 °C | 682 mm | +177 mm |
| Oct | 27.8 °C | +0.4 °C | 423 mm | +65 mm |
| Nov | 28.4 °C | +0.4 °C | 205 mm | +4 mm |
| Dec | 28.5 °C | +0.4 °C | 133 mm | +15 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Monrovia?
Monrovia has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 25.8 °C and it receives 3,390 mm of precipitation per year.
What is the hottest day ever recorded in Monrovia?
The hottest day measured in Monrovia between 1940 and 2025 was 22 January 2016, reaching 31.7 °C.
What is the coldest day in Monrovia?
The coldest day measured in Monrovia between 1940 and 2025 was 7 January 1989, at 21.3 °C.
Does it snow in Monrovia?
Almost never: Monrovia sees virtually no snow, with about 0 frost days per year.
Has the climate of Monrovia warmed?
Yes: Monrovia warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Monrovia?
The wettest day measured in Monrovia between 1940 and 2025 was 11 June 2017, with 425 mm of rain in 24 hours.
What was the windiest day in Monrovia?
The windiest day measured in Monrovia between 1940 and 2025 was 10 September 2021, with winds reaching 33.4 km/h.
What is the warmest month in Monrovia?
The warmest month in Monrovia is April (26.7 °C on average); the coldest is August (24.7 °C).
How much does it rain in Monrovia?
Monrovia receives on average 3,390 mm of precipitation per year, spread over about 325 rainy days.
Is it sunny in Monrovia?
Monrovia gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.
Are there tropical nights in Monrovia?
Yes: Monrovia has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Monrovia?
In Monrovia, between 1940 and 2025, the highest apparent temperature reached 40.5 °C on 14 April 2024, and the lowest was 21.5 °C on 6 January 2016.
Compare Monrovia with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Monrovia