Kourou is warm all year: afternoons reach 29 to 32 degrees in every month
A rain gauge here collects about 2,523 mm in an average year. May is the wettest month, September the driest. Its July, January and rain figures all sit close to those of typical mainland French towns.
These are the figures of Météo-France’s Kourou Plage station, 1.1 km north.
A year in Kourou at a glance
Each month’s typical high and low in °C, at the Kourou Plage station.
What a year in Kourou 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 Plage.
About 2,523 mm of rain a year
May is the wettest month and September the driest. About 72 days a year bring 10 mm or more. 12th wettest of 15 towns of 2,500+ in French Guiana.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Cayenne-Matoury
The Météo-France station at Kourou Plage
Kourou Plage is 1.1 km north of Kourou. Every figure on this page is the station’s, not a measurement in Kourou itself.
| Station (Météo-France number) | Kourou Plage (97304005) |
| Distance from the town | 1.1 km north |
| Station altitude | 3 m |
| Town altitude (its center) | 3 m |
| Period | 1995–2020 (the station’s own record) |
| Sunshine measured at | Cayenne-Matoury, 48 km away |
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 Kourou 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.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km, each with its own matched station.
| Town | Station | Warmest-month high | Coolest-month low | Rain a year |
|---|---|---|---|---|
| Kourou | Kourou Plage | 31.9°C | 24.1°C | 2,523 mm |
| Macouria 25 km | Cayenne-Matoury | 32.5°C 0.6°C warmer | 22.4°C 1.7°C colder | 3,488 mm |
Kourou weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Kourou Plage station; sunshine at Cayenne-Matoury.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 29.3°C | 25.1°C | 27.2°C | 282 mm | 102 |
| February | 29.3°C | 25.2°C | 27.2°C | 237 mm | 90 |
| March | 29.7°C | 25.6°C | 27.7°C | 208 mm | 117 |
| April | 29.9°C | 25.5°C | 27.7°C | 357 mm | 121 |
| May | 29.9°C | 25.0°C | 27.4°C | 472 mm | 121 |
| June | 30.0°C | 24.3°C | 27.2°C | 340 mm | 153 |
| July | 30.7°C | 24.1°C | 27.4°C | 159 mm | 200 |
| August | 31.5°C | 24.5°C | 28.0°C | 68 mm | 231 |
| September | 31.8°C | 25.0°C | 28.4°C | 24 mm | 251 |
| October | 31.9°C | 25.5°C | 28.7°C | 37 mm | 257 |
| November | 31.3°C | 25.5°C | 28.4°C | 95 mm | 208 |
| December | 30.1°C | 25.2°C | 27.7°C | 245 mm | 150 |
| Year | 30.4°C | 25.0°C | 27.8°C | 2,523 mm | 2,003 |
Where Kourou’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Kourou Plage, 1.1 km away: statistics for 1991–2020 (the station’s own years, 1995–2020, where its record is shorter).
- 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.
- Sunshine: the nearest station with at least 10 years of sunshine records, Cayenne-Matoury, 48 km away.
- 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 Kourou’s climate
How warm does Kourou get in summer?
October is the warmest month, with average highs of 31.9°C. Météo-France publishes no count of hot days for this station.
Does Kourou ever get cool?
Not much: the coolest nights, in July, average 24.1°C.
How much rain does Kourou get?
About 2,523 mm a year. May is the wettest month (472 mm) and September the driest (24 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Cayenne-Matoury (48 km away), averages 2,003 hours of sunshine a year.
Are these figures for Kourou itself?
No: they are the normals of the Météo-France station matched to Kourou, Kourou Plage, 1.1 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 PLAGE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Kourou →
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.