French Guiana
Territory in Americas
In brief
Area: 83,534 km². World rank 118 of 249; in Americas, 21 of 56.
Territory
- Area
- 83,534 km²
- Sea access
- Has a coastline
- Coastline, km
- No data
- Agricultural land
- No data
Elevation
- Highest point
- No data
- Lowest point
- No data
- Mean elevation, m
- No data
Climate
- Average temperature in the capital, °C
- 26
- Warmest month in the capital
- October, 27°C
- Coldest month in the capital
- January, 26°C
- Precipitation, mm per year
- No data
Climate by month: Cayenne
October: day 30°C, night 25°C, precipitation 58 mm
Estimate from NASA POWER: averages for 2001–2025 at the capital’s location (grid cell about 50 km across). The city itself is often 1–3 °C warmer in winter.
Table of values
| Month | Day, °C | Night, °C | Precipitation, mm |
|---|---|---|---|
| January | 27 | 24 | 300 |
| February | 27 | 24 | 264 |
| March | 28 | 24 | 251 |
| April | 28 | 25 | 369 |
| May | 28 | 25 | 504 |
| June | 27 | 25 | 334 |
| July | 28 | 24 | 217 |
| August | 28 | 24 | 109 |
| September | 29 | 25 | 54 |
| October | 30 | 25 | 58 |
| November | 29 | 25 | 110 |
| December | 28 | 25 | 303 |