Annual mean 25°C · wettest around May · prevailing wind E
Warmest
32.4 °C
Coldest
24.8 °C
Wettest
52%
Windiest
5.1 m/s
Prevailing
E
4.0 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Cayenne over the whole year is 25°C. September is the hottest month, with highs of about 32°C; December is the coldest, with lows of about 22°C. The rainy (wet) season in Cayenne runs from December to June, peaking in May with a 45% chance of rain on a given day. The dry season is July to November; October is the driest month, at 4%. Winds in Cayenne are highest in February, averaging 2.8 m/s (10 km/h), and lightest in June, at 1.4 m/s (5 km/h). The prevailing wind is from the E. The clearest skies in Cayenne come in October, when the sky is typically 48% covered; February is the cloudiest month, at 81%.
Month by month Cayenne climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
27°C
23°C
29°C
28%
78%
2.5 m/s
7
56
6
February
26°C
23°C
28°C
34%
81%
2.8 m/s
10
54
5
March
27°C
23°C
29°C
27%
76%
2.7 m/s
5
55
5
April
27°C
22°C
29°C
38%
78%
2.3 m/s
3
47
6
May
25°C
23°C
28°C
45%
79%
1.9 m/s
3
38
9
June
27°C
23°C
31°C
30%
77%
1.4 m/s
2
36
7
July
27°C
23°C
31°C
20%
69%
1.4 m/s
2
32
7
August
30°C
23°C
34°C
10%
57%
1.6 m/s
1
26
3
September
32°C
23°C
35°C
4%
50%
1.8 m/s
0
21
1
October
31°C
23°C
34°C
4%
48%
1.9 m/s
0
29
1
November
29°C
23°C
31°C
16%
61%
1.9 m/s
1
36
4
December
28°C
22°C
30°C
37%
76%
2.2 m/s
4
47
4
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Cayenne weather by season
Year round, Cayenne has days of about 25°C at their warmest in May, its coolest month, and 32°C in September, its warmest; the coolest hours of the day run from 22°C to 23°C through the year, and the average temperature over the year is 25°C around the clock. Rain is most likely around May and least likely around October. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Cayenne weather in winterDecember to February
High 27°CLow 22°CRain 33%
Winter in Cayenne has typical daily highs of about 27°C and lows of about 22°C, with a 33% chance of rain on a given day.
Cayenne weather in springMarch to May
High 26°CLow 23°CRain 37%
Spring in Cayenne has typical daily highs of about 26°C and lows of about 23°C, with a 37% chance of rain on a given day.
Cayenne weather in summerJune to August
High 28°CLow 23°CRain 20%
Summer in Cayenne has typical daily highs of about 28°C and lows of about 23°C, with a 20% chance of rain on a given day.
Cayenne weather in autumnSeptember to November
High 31°CLow 23°CRain 8%
Autumn in Cayenne has typical daily highs of about 31°C and lows of about 23°C, with a 8% chance of rain on a given day.
When is the rainy season in Cayenne?
The rainy (wet) season in Cayenne runs from December to June, peaking in May with a 45% chance of rain on a given day. The dry season is July to November; October is the driest month, at 4%.
What time of year is Cayenne windiest?
Winds in Cayenne are highest in February, averaging 2.8 m/s (10 km/h), and lightest in June, at 1.4 m/s (5 km/h). The prevailing wind is from the E.
What is the average temperature in Cayenne year round?
The average temperature in Cayenne over the whole year is 25°C. September is the hottest month, with highs of about 32°C; December is the coldest, with lows of about 22°C.