Rémire-Montjoly climate — normals and trends
Rémire-Montjoly (French Guiana) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 26.1 °C and it receives 2,586 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 September (27.2 °C on average) and the coldest is January (25.4 °C). Rainfall peaks in May.
Rémire-Montjoly averages 0 frost days, 38 hot days (≥ 30 °C) and 281 rainy days per year.
Rémire-Montjoly has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.6 °C (on 4 September 2024) and the coldest 21.8 °C (on 16 December 1961).
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
Rémire-MontjolyGuyane
- coords
- 4.92°, -52.27°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.1°C
Average daily high
28.1°C
Average daily low
24.6°C
Annual rainfall
2,586mm
Sunshine / day
10.2h
Mean relative humidity
83%
Average peak wind
19.4km/h
Seasonal range
1.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
38 d/yr
Rainy days (≥ 1 mm)
281 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.3 °C
Average feels-like low
27.8 °C
Average peak gust
34.3 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
18.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °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
32.6 °C
4 September 2024
Coldest day
21.8 °C
16 December 1961
Wettest day
279 mm
27 May 2021
Windiest day
33.8 km/h
26 April 1992
Strongest gust
55.1 km/h
22 February 1962
Hottest feels-like
38.8 °C
30 October 2024
Coldest feels-like
23.4 °C
11 February 1976
Sunniest day
12.2 h
12 June 1950
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 | 28.0 °C | +1.0 °C | 320 mm | +41 mm |
| Feb | 27.7 °C | +0.7 °C | 270 mm | +45 mm |
| Mar | 28.0 °C | +0.7 °C | 237 mm | +21 mm |
| Apr | 28.5 °C | +0.9 °C | 231 mm | -40 mm |
| May | 28.1 °C | +0.7 °C | 712 mm | +274 mm |
| Jun | 28.4 °C | +0.9 °C | 416 mm | +44 mm |
| Jul | 29.0 °C | +1.0 °C | 181 mm | -34 mm |
| Aug | 29.6 °C | +0.5 °C | 105 mm | +23 mm |
| Sep | 31.1 °C | +1.3 °C | 17 mm | -21 mm |
| Oct | 30.5 °C | +0.8 °C | 48 mm | -5 mm |
| Nov | 29.5 °C | +0.7 °C | 101 mm | -33 mm |
| Dec | 28.3 °C | +0.7 °C | 272 mm | +9 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 Rémire-Montjoly?
Rémire-Montjoly has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.1 °C and it receives 2,586 mm of precipitation per year.
What is the hottest day ever recorded in Rémire-Montjoly?
The hottest day measured in Rémire-Montjoly between 1940 and 2025 was 4 September 2024, reaching 32.6 °C.
What is the coldest day in Rémire-Montjoly?
The coldest day measured in Rémire-Montjoly between 1940 and 2025 was 16 December 1961, at 21.8 °C.
Does it snow in Rémire-Montjoly?
Almost never: Rémire-Montjoly sees virtually no snow, with about 0 frost days per year.
Has the climate of Rémire-Montjoly warmed?
Yes: Rémire-Montjoly warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Rémire-Montjoly?
The wettest day measured in Rémire-Montjoly between 1940 and 2025 was 27 May 2021, with 279 mm of rain in 24 hours.
What was the windiest day in Rémire-Montjoly?
The windiest day measured in Rémire-Montjoly between 1940 and 2025 was 26 April 1992, with winds reaching 33.8 km/h.
What is the warmest month in Rémire-Montjoly?
The warmest month in Rémire-Montjoly is September (27.2 °C on average); the coldest is January (25.4 °C).
How much does it rain in Rémire-Montjoly?
Rémire-Montjoly receives on average 2,586 mm of precipitation per year, spread over about 281 rainy days.
Is it sunny in Rémire-Montjoly?
Rémire-Montjoly gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in Rémire-Montjoly?
Yes: Rémire-Montjoly has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Rémire-Montjoly?
In Rémire-Montjoly, between 1940 and 2025, the highest apparent temperature reached 38.8 °C on 30 October 2024, and the lowest was 23.4 °C on 11 February 1976.
Compare Rémire-Montjoly with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Rémire-Montjoly