Iracoubo is warm all year: afternoons reach 29 to 32 degrees in every month
About 2,810 mm of rain falls in a typical year. The gap between a January night and a July afternoon is 9°C. Set against mainland French towns, none of its figures stands out.
These are the figures of Météo-France’s Kourou Csg station, 59 km south-east; at that distance they describe the area more than the town.
A year in Iracoubo at a glance
Each month’s typical high and low in °C, at the Kourou Csg station.
What a year in Iracoubo feels like
Typical highs and lows in the rainier and the drier half of the year, and by month, from Météo-France’s 1991–2020 normals at Kourou Csg.
About 2,810 mm of rain a year
May is the wettest month and September the driest. About 80 days a year bring 10 mm or more. 11th wettest of 15 towns of 2,500+ in French Guiana.
Rain by month
Millimeters
The Météo-France station at Kourou Csg
Kourou Csg is 59 km south-east of Iracoubo. Every figure on this page is the station’s, not a measurement in Iracoubo itself. At that distance, read them as the area’s climate.
| Station (Météo-France number) | Kourou Csg (97304003) |
| Distance from the town | 59 km south-east |
| Station altitude | 17 m |
| Town altitude (its center) | 4 m |
| Period | 1991–2020 |
| Nearest station of any kind | 32 km |
TownRatings matches each commune to one station with at least 24 years of temperature and rain records: the nearest, counting every 100 m of height difference as 10 km, never across the sea.
How Iracoubo compares
Against the 15 towns of 2,500+ in French Guiana (the dots). Mainland France’s towns aren’t a fair comparison for a tropical climate.
Iracoubo weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Kourou Csg station.
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 29.2°C | 24.0°C | 26.6°C | 320 mm |
| February | 29.3°C | 24.1°C | 26.7°C | 252 mm |
| March | 29.6°C | 24.5°C | 27.0°C | 246 mm |
| April | 29.7°C | 24.5°C | 27.1°C | 406 mm |
| May | 29.7°C | 24.2°C | 26.9°C | 489 mm |
| June | 29.9°C | 23.4°C | 26.6°C | 382 mm |
| July | 30.6°C | 22.9°C | 26.7°C | 165 mm |
| August | 31.2°C | 22.9°C | 27.1°C | 82 mm |
| September | 31.9°C | 22.9°C | 27.4°C | 28 mm |
| October | 32.2°C | 22.9°C | 27.6°C | 42 mm |
| November | 31.4°C | 23.3°C | 27.4°C | 125 mm |
| December | 30.0°C | 23.8°C | 26.9°C | 274 mm |
| Year | 30.4°C | 23.6°C | 27.0°C | 2,810 mm |
Where Iracoubo’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Kourou Csg, 59 km away: statistics for 1991–2020.
- Which station: among stations with at least 24 of the 30 years of temperature and rain, the nearest to the commune’s population-weighted center, counting each 100 m of height difference as 10 km; mainland towns use mainland stations and each overseas département its own.
- Altitudes: the town’s from IGN’s RGE ALTI® at its population-weighted center; the station’s from Météo-France.
- Comparisons: the towns of 2,500+ in French Guiana, read the same way.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Iracoubo’s climate
How warm does Iracoubo get in summer?
October is the warmest month, with average highs of 32.2°C. Météo-France publishes no count of hot days for this station.
Does Iracoubo ever get cool?
Not much: the coolest nights, in July, average 22.9°C.
How much rain does Iracoubo get?
About 2,810 mm a year. May is the wettest month (489 mm) and September the driest (28 mm).
Are these figures for Iracoubo itself?
No: they are the normals of the Météo-France station matched to Iracoubo, Kourou Csg, 59 km away. France publishes its climate normals by station, not by commune; a valley, a hill or the sea can make a difference over a few kilometers.
Where do these figures come from?
Météo-France’s fiches climatologiques: 30-year averages (1991–2020) for each of its long-running stations, published as open data since 2024. They are normals, not a forecast.
Source: Météo-France, fiches climatologiques, 1991–2020 statistics (station KOUROU CSG, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Iracoubo →
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.