Port Loko climate — normals and trends
Port Loko (Sierra Leone) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 25.8 °C and it receives 2,948 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 March (27.6 °C on average) and the coldest is August (24.2 °C). Rainfall peaks in August.
Port Loko averages 0 frost days, 197 hot days (≥ 30 °C) and 231 rainy days per year.
Port Loko has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The hottest day of the period reached 38.9 °C (on 4 March 1943) and the coldest 16.8 °C (on 12 January 1957).
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
Port LokoNorth West
- coords
- 8.77°, -12.79°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.8°C
Average daily high
30.4°C
Average daily low
22.9°C
Annual rainfall
2,948mm
Sunshine / day
9.2h
Mean relative humidity
84%
Average peak wind
10.5km/h
Seasonal range
3.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
197 d/yr
Rainy days (≥ 1 mm)
231 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.6 °C
Average feels-like low
27.2 °C
Average peak gust
26.7 km/h
Tropical nights (≥ 20 °C)
362 d/yr
Solar radiation
16.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.76 · 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
38.9 °C
4 March 1943
Coldest day
16.8 °C
12 January 1957
Wettest day
266 mm
26 August 1956
Windiest day
22.8 km/h
13 September 1957
Strongest gust
53.3 km/h
26 July 1980
Hottest feels-like
44.6 °C
13 April 2024
Coldest feels-like
15.0 °C
8 January 1957
Sunniest day
12.0 h
8 June 2022
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 34.3 °C | +2.2 °C | 2 mm | -12 mm |
| Feb | 35.6 °C | +2.4 °C | 0 mm | -10 mm |
| Mar | 35.2 °C | +1.7 °C | 3 mm | -22 mm |
| Apr | 34.1 °C | +1.3 °C | 34 mm | -38 mm |
| May | 31.2 °C | +0.6 °C | 254 mm | -12 mm |
| Jun | 30.0 °C | +0.8 °C | 371 mm | -22 mm |
| Jul | 27.6 °C | -0.1 °C | 825 mm | +279 mm |
| Aug | 27.4 °C | +0.1 °C | 784 mm | +179 mm |
| Sep | 28.2 °C | 0.0 °C | 857 mm | +344 mm |
| Oct | 30.0 °C | +0.7 °C | 299 mm | -26 mm |
| Nov | 30.2 °C | +0.4 °C | 190 mm | +47 mm |
| Dec | 30.7 °C | 0.0 °C | 37 mm | +0 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 Port Loko?
Port Loko has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 25.8 °C and it receives 2,948 mm of precipitation per year.
What is the hottest day ever recorded in Port Loko?
The hottest day measured in Port Loko between 1940 and 2025 was 4 March 1943, reaching 38.9 °C.
What is the coldest day in Port Loko?
The coldest day measured in Port Loko between 1940 and 2025 was 12 January 1957, at 16.8 °C.
Does it snow in Port Loko?
Almost never: Port Loko sees virtually no snow, with about 0 frost days per year.
Has the climate of Port Loko warmed?
Yes: Port Loko warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Port Loko?
The wettest day measured in Port Loko between 1940 and 2025 was 26 August 1956, with 266 mm of rain in 24 hours.
What was the windiest day in Port Loko?
The windiest day measured in Port Loko between 1940 and 2025 was 13 September 1957, with winds reaching 22.8 km/h.
What is the warmest month in Port Loko?
The warmest month in Port Loko is March (27.6 °C on average); the coldest is August (24.2 °C).
How much does it rain in Port Loko?
Port Loko receives on average 2,948 mm of precipitation per year, spread over about 231 rainy days.
Is it sunny in Port Loko?
Port Loko gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.
Are there tropical nights in Port Loko?
Yes: Port Loko has on average 362 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Port Loko?
In Port Loko, between 1940 and 2025, the highest apparent temperature reached 44.6 °C on 13 April 2024, and the lowest was 15.0 °C on 8 January 1957.
Compare Port Loko with another city
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Nearby cities
The climate around Port Loko