Climate averages 1991–2020
Cayenne weather
in March.
A hot, wet month: the 10th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a hot month in Cayenne: daytime highs average 28.1°C and nights cool to about 23.8°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 173 mm of rain on roughly 24 days, which makes March a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 05 min on an average March day.
The nearest other city in this atlas is Paramaribo (330 km away). In March its highs average 28.8°C, 0.7°C warmer than Cayenne, with 79 mm of rain.
From March to April, average highs rise by 0.3°C to 28.3°C, and monthly rainfall rises from 173 mm to 257 mm.
The annual picture
March in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Cayenne climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.6°C23.3°C | 23.3°C | 244 | 26.6 | 11.912 h |
| February | 27.6°C23.5°C | 23.5°C | 205 | 22.5 | 12.012 h |
| March, selected | 28.1°C23.8°C | 23.8°C | 173 | 23.9 | 12.112 h |
| April | 28.3°C23.8°C | 23.8°C | 257 | 25.0 | 12.212 h |
| May | 28.2°C23.6°C | 23.6°C | 411 | 29.1 | 12.312 h |
| June | 28.3°C23.2°C | 23.2°C | 343 | 28.5 | 12.412 h |
| July | 28.9°C23.2°C | 23.2°C | 186 | 24.8 | 12.412 h |
| August | 30.1°C23.7°C | 23.7°C | 67 | 13.9 | 12.312 h |
| September | 31.3°C24.2°C | 24.2°C | 23 | 7.2 | 12.112 h |
| October | 31.5°C24.3°C | 24.3°C | 39 | 10.1 | 12.012 h |
| November | 30.1°C24.1°C | 24.1°C | 122 | 19.6 | 11.912 h |
| December | 28.4°C23.6°C | 23.6°C | 253 | 26.5 | 11.812 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Paramaribo in MarchSuriname · 330 kmHigh 28.8°C · Low 23.8°C · 79 mm rain
- Macapá in MarchBrazil · 563 kmHigh 28.1°C · Low 23.4°C · 387 mm rain
- Santana in MarchBrazil · 568 kmHigh 28.4°C · Low 23.3°C · 335 mm rain
- Georgetown in MarchGuyana · 676 kmHigh 27.4°C · Low 24.5°C · 93 mm rain
- Breves in MarchBrazil · 764 kmHigh 29.0°C · Low 23.3°C · 397 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Cayenne) is explained once on the Cayenne year overview and on the Sources, method and limits page.