Cayenne Weather in March
During March, Cayenne experiences high daytime temperatures of 30°C (86°F) and cooler nights around 24°C (75°F). March sits within the rainy season, so expect regular and often heavy rainfall.
Rainfall in Cayenne in March
Cayenne is in the rainy season in March, with rain on around 22 days and an average of 184 mm (7.2 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.
Temperature in Cayenne in March
In March, expect high temperatures in Cayenne, with highs of 30°C (86°F) and lows of 24°C (75°F) at night. This kind of day-to-night contrast is typical for this time of year. At 24°C (75°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in Cayenne in March
The city usually sees around 119 hours of sunlight, indicating a moderately sunny period (despite it being part of rainy season).
Wind Speed in Cayenne in March
In March, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.
Average water temperature in March
With water at 28°C (82°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.Our weather planner can help you find worldwide destinations with pleasant weather during this period. September typically offers the best weather for Cayenne.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit French Guiana, check out our Cayenne's climate page.
Cayenne Temperature in March
Min Temperature
24°C (75°F)
Max Temperature
30°C (86°F)
Water Temperature
28°C (82°F)
Chance of Rain
73%
Precipitation
184 mm (7.2 in)
Rainy days
22 days
Humidity
82%
Windspeed
4 m/s (8 knots)
Sunshine
119 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Cayenne typically stay consistent throughout March, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in March
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in March
Historical weather for Cayenne in March
Browse day-by-day weather records for Cayenne spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cayenne historical weather extremes in March
According to our 34 years of weather records for Cayenne, the following extremes were recorded between 1992 and 2026.
- Cayenne recorded its highest March temperature of 33°C (91°F) on March 27, 2024.
- The lowest daytime temperature in March was 24°C (75°F), recorded on March 6, 2022.
- Cayenne registered its coldest March night on March 17, 2008, with temperatures dropping to 20°C (68°F).
Best Places in French Guiana in March
Find out more about the weather in French Guiana and which places have the best travel conditions in this month. See all of French Guiana in March →
perfect weather
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tolerable
unpleasant
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What to Wear in Cayenne in March
Warm temperatures in March make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Expect water temperatures of around 28°C (82°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Cayenne in March
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit French Guiana, check out our Cayenne's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Cayenne climate overview or explore weather in French Guiana.
