Grand-Lahou climate — normals and trends
Grand-Lahou (Ivory Coast) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 25.9 °C and it receives 2,134 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 (27.2 °C on average) and the coldest is August (24.2 °C). Rainfall peaks in June.
Grand-Lahou averages 0 frost days, 80 hot days (≥ 30 °C) and 310 rainy days per year.
Grand-Lahou has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The hottest day of the period reached 34.4 °C (on 28 January 2013) and the coldest 18.5 °C (on 6 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
Grand-LahouLagunes District
- coords
- 5.14°, -5.02°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.9°C
Average daily high
28.5°C
Average daily low
24.0°C
Annual rainfall
2,134mm
Sunshine / day
9.6h
Mean relative humidity
87%
Average peak wind
11.9km/h
Seasonal range
3.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
80 d/yr
Rainy days (≥ 1 mm)
310 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.1 °C
Average feels-like low
28.4 °C
Average peak gust
27.2 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
16.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.85 · 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
34.4 °C
28 January 2013
Coldest day
18.5 °C
6 January 1989
Wettest day
212 mm
31 May 2019
Windiest day
22.4 km/h
6 January 2016
Strongest gust
45.0 km/h
21 August 1994
Hottest feels-like
42.9 °C
5 March 2020
Coldest feels-like
18.9 °C
6 January 1989
Sunniest day
12.1 h
12 July 2017
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 | 31.0 °C | +1.6 °C | 77 mm | -37 mm |
| Feb | 31.3 °C | +1.3 °C | 78 mm | -57 mm |
| Mar | 31.5 °C | +1.3 °C | 71 mm | -114 mm |
| Apr | 30.5 °C | +0.5 °C | 189 mm | -23 mm |
| May | 29.8 °C | +0.7 °C | 226 mm | -50 mm |
| Jun | 28.4 °C | +0.8 °C | 368 mm | +72 mm |
| Jul | 27.3 °C | +0.7 °C | 55 mm | -99 mm |
| Aug | 26.2 °C | 0.0 °C | 46 mm | -42 mm |
| Sep | 27.8 °C | +0.9 °C | 81 mm | -45 mm |
| Oct | 28.9 °C | +0.9 °C | 253 mm | +63 mm |
| Nov | 29.9 °C | +0.9 °C | 181 mm | -21 mm |
| Dec | 29.8 °C | +0.8 °C | 208 mm | +52 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 Grand-Lahou?
Grand-Lahou has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 25.9 °C and it receives 2,134 mm of precipitation per year.
What is the hottest day ever recorded in Grand-Lahou?
The hottest day measured in Grand-Lahou between 1940 and 2025 was 28 January 2013, reaching 34.4 °C.
What is the coldest day in Grand-Lahou?
The coldest day measured in Grand-Lahou between 1940 and 2025 was 6 January 1989, at 18.5 °C.
Does it snow in Grand-Lahou?
Almost never: Grand-Lahou sees virtually no snow, with about 0 frost days per year.
Has the climate of Grand-Lahou warmed?
Yes: Grand-Lahou warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Grand-Lahou?
The wettest day measured in Grand-Lahou between 1940 and 2025 was 31 May 2019, with 212 mm of rain in 24 hours.
What was the windiest day in Grand-Lahou?
The windiest day measured in Grand-Lahou between 1940 and 2025 was 6 January 2016, with winds reaching 22.4 km/h.
What is the warmest month in Grand-Lahou?
The warmest month in Grand-Lahou is March (27.2 °C on average); the coldest is August (24.2 °C).
How much does it rain in Grand-Lahou?
Grand-Lahou receives on average 2,134 mm of precipitation per year, spread over about 310 rainy days.
Is it sunny in Grand-Lahou?
Grand-Lahou gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
Are there tropical nights in Grand-Lahou?
Yes: Grand-Lahou has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Grand-Lahou?
In Grand-Lahou, between 1940 and 2025, the highest apparent temperature reached 42.9 °C on 5 March 2020, and the lowest was 18.9 °C on 6 January 1989.
Compare Grand-Lahou with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Grand-Lahou