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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, the same as December, is another warm winter month in Petit Cayenne, French Guiana, with an average temperature varying between 28°C (82.4°F) and 24°C (75.2°F). The introduction of January sees an average high-temperature of a still moderately hot 28°C (82.4°F), hardly deviating from December. Weather in January »
Weather in February
February, the last month of the winter in Petit Cayenne, is also a moderately hot month, with an average temperature ranging between max 27.7°C (81.9°F) and min 23.9°C (75°F). In Petit Cayenne, February is the month with the lowest recorded average temperatures, measuring a high of 27.7°C (81.9°F) and a low of 23.9°C (75°F). Throughout February, the heat index is evaluated at a tropical 32°C (89.6°F). Weather in February »
Weather in March
March, the first month of the spring in Petit Cayenne, is still a warm month, with temperature in the range of an average high of 28.3°C (82.9°F) and an average low of 24.2°C (75.6°F). Petit Cayenne experiences a minor change to a still warm 28.3°C (82.9°F) in average high-temperature during March, closely reflecting February. Weather in March »
Weather in April
April, the same as March, is a moderately hot spring month in Petit Cayenne, French Guiana, with an average temperature ranging between min 24.7°C (76.5°F) and max 28.5°C (83.3°F). The arrival of April coincides with an average high-temperature of a still warm 28.5°C (83.3°F), indicating a minimal shift from March's 28.3°C (82.9°F). Weather in April »
Weather in May
The last month of the spring, May, is another warm month in Petit Cayenne, French Guiana, with an average temperature fluctuating between 24.7°C (76.5°F) and 28.6°C (83.5°F). The advent of May brings an average high-temperature of a still moderately hot 28.6°C (83.5°F), exhibiting minor difference from the previous month. Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Petit Cayenne, French Guiana, with an average temperature ranging between max 28.8°C (83.8°F) and min 23.8°C (74.8°F). June's weather records an average high-temperature of a still warm 28.8°C (83.8°F), showing little deviation from May. Weather in June »
Weather in July
July, the same as June, is another warm summer month in Petit Cayenne, French Guiana, with an average temperature fluctuating between 23.8°C (74.8°F) and 29.8°C (85.6°F). In July, Petit Cayenne experiences a minor shift in meteorological conditions with average high-temperatures marked at a still warm 29.8°C (85.6°F), closely mirroring the climate in June. Weather in July »
Weather in August
The last month of the summer, August, is a tropical month in Petit Cayenne, French Guiana, with an average temperature varying between 23.9°C (75°F) and 30.9°C (87.6°F). The commencement of August records an average high-temperature of a tropical 30.9°C (87.6°F), barely varying from July's 29.8°C (85.6°F). Weather in August »
Weather in September
The first month of the autumn, September, is still a tropical month in Petit Cayenne, French Guiana, with an average temperature fluctuating between 24.5°C (76.1°F) and 31.5°C (88.7°F). Petit Cayenne observes an average high-temperature of a still tropical 31.5°C (88.7°F) in September, barely different from 30.9°C (87.6°F) in August. Weather in September »
Weather in October
October, the same as September, in Petit Cayenne, French Guiana, is another hot autumn month, with an average temperature varying between 31.6°C (88.9°F) and 24.8°C (76.6°F). Temperature records mark October as the warmest month, with highs averaging 31.6°C (88.9°F) and lows at 24.8°C (76.6°F). For October, the heat index is evaluated at a scorching 41°C (105.8°F). Weather in October »
Weather in November
The last month of the autumn, November, is another hot month in Petit Cayenne, French Guiana, with an average temperature varying between 24.8°C (76.6°F) and 30.8°C (87.4°F). The high-temperature average in November for Petit Cayenne, French Guiana, is a still tropical 30.8°C (87.4°F), staying closely aligned with October's conditions. Weather in November »
Weather in December
The first month of the winter, December, is still a warm month in Petit Cayenne, French Guiana, with an average temperature ranging between max 28.8°C (83.8°F) and min 24.5°C (76.1°F). In the transition from November to December, Petit Cayenne reports an average high-temperature of a warm 28.8°C (83.8°F), indicating a close resemblance to the prior month. Weather in December »
Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How many days does it rain in Petit Cayenne?
Throughout the year, in Petit Cayenne, there are 277 rainfall days, and 1707mm (67.2") of precipitation is accumulated.
What is the month with the lowest UV index in Petit Cayenne?
January through May and December, with an average maximum UV index of 6, are months with the lowest UV index in Petit Cayenne, French Guiana.
What is the coldest time of year in Petit Cayenne?
February brings the lowest temperatures, with an average high of 27.7°C (81.9°F) and an average low of 23.9°C (75°F).
What is the month with the least sunshine in Petit Cayenne?
February has the least sunshine of the year in Petit Cayenne, with an average of 5.6h of sunshine.
What is the most humid month in Petit Cayenne?
With an average relative humidity of 86%, May is the most humid month in Petit Cayenne, French Guiana.
What is the wettest month in Petit Cayenne?
May is the month with the most rainfall. Rain falls for 28.9 days and accumulates 293mm (11.54") of precipitation.
When are the longest days in Petit Cayenne?
June has the longest days of the year in Petit Cayenne, with an average of 12h and 24min of daylight.
What are the months with the highest UV index in Petit Cayenne?
June through November, with an average maximum UV index of 7, are months with the highest UV index.
What is the least humid month in Petit Cayenne?
September and October, with an average relative humidity of 76%, are the least humid months.
What is the driest month in Petit Cayenne?
September is the month with the least rainfall in Petit Cayenne. Rain falls for 12.2 days and accumulates 23mm (0.91") of precipitation.
What month has the most sunshine in Petit Cayenne?
The month with the most sunshine is September, with an average of 9.2h of sunshine.
What are the warmest months in Petit Cayenne?
Temperature records mark October as the warmest month, with highs averaging 31.6°C (88.9°F) and lows at 24.8°C (76.6°F).
What is the month with the shortest days in Petit Cayenne?
With an average of 11h and 48min of daylight, December has the shortest days of the year.
Is there Daylight Saving Time (DST) in Petit Cayenne?
Petit Cayenne does not observe Daylight Saving Time (DST). -03 timezone is used over the entire year.
Average temperature
Petit Cayenne, French Guiana
The warmest month (with the highest average high temperature) is October (31.6°C).
The month with the lowest average high temperature is February (27.7°C).
The months with the highest average low temperature are October and November (24.8°C).
The coldest months (with the lowest average low temperature) are June and July (23.8°C).
Average pressure
Petit Cayenne, French Guiana
- Average pressure in January:
1011.9mbar - Average pressure in February:
1011.7mbar - Average pressure in March:
1011.9mbar - Average pressure in April:
1011.9mbar - Average pressure in May:
1012.3mbar - Average pressure in June:
1013.1mbar
- Average pressure in July:
1013.2mbar - Average pressure in August:
1012.7mbar - Average pressure in September:
1012mbar - Average pressure in October:
1010.6mbar - Average pressure in November:
1009.8mbar - Average pressure in December:
1010.8mbar
The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed
Petit Cayenne, French Guiana
- Average wind speed in January:
12.2km/h - Average wind speed in February:
12.9km/h - Average wind speed in March:
12.7km/h - Average wind speed in April:
11.7km/h - Average wind speed in May:
10.5km/h - Average wind speed in June:
8.5km/h
- Average wind speed in July:
8.3km/h - Average wind speed in August:
10km/h - Average wind speed in September:
11.1km/h - Average wind speed in October:
11.1km/h - Average wind speed in November:
11.1km/h - Average wind speed in December:
11.7km/h
The windiest month (with the highest average wind speed) is February (12.9km/h).
The calmest month (with the lowest average wind speed) is July (8.3km/h).
Average humidity
Petit Cayenne, French Guiana
The month with the highest relative humidity is May (86%).
The months with the lowest relative humidity are September and October (76%).
Average rainfall
Petit Cayenne, French Guiana
- Average rainfall in January:
154mm - Average rainfall in February:
163mm - Average rainfall in March:
128mm - Average rainfall in April:
208mm - Average rainfall in May:
293mm - Average rainfall in June:
234mm
The wettest month (with the highest rainfall) is May (293mm).
The driest month (with the least rainfall) is September (23mm).
Average rainfall days
Petit Cayenne, French Guiana
- Average rainfall days in January:
28 days - Average rainfall days in February:
26.3 days - Average rainfall days in March:
27.2 days - Average rainfall days in April:
27.2 days - Average rainfall days in May:
28.9 days - Average rainfall days in June:
28.2 days
- Average rainfall days in July:
26.6 days - Average rainfall days in August:
19.2 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
11.6 days - Average rainfall days in November:
16.4 days - Average rainfall days in December:
25.2 days
The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is October (11.6 days).
Average daylight / Average sunshine
Petit Cayenne, French Guiana
- Average daylight in January:
11h and 5min - Average daylight in February:
12h and 0min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 1min - Average daylight in May:
12h and 2min - Average daylight in June:
12h and 2min
- Average daylight in July:
12h and 2min - Average daylight in August:
12h and 2min - Average daylight in September:
12h and 1min - Average daylight in October:
12h and 0min - Average daylight in November:
11h and 5min - Average daylight in December:
11h and 5min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in January:
6h and 5min - Average sunshine in February:
5h and 4min - Average sunshine in March:
6h and 0min - Average sunshine in April:
6h and 1min - Average sunshine in May:
6h and 5min - Average sunshine in June:
7h and 3min
- Average sunshine in July:
8h and 2min - Average sunshine in August:
8h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
9h and 1min - Average sunshine in November:
8h and 4min - Average sunshine in December:
7h and 2min
The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days
Petit Cayenne, French Guiana
- Average sunshine days in January:
1.8 days - Average sunshine days in February:
1.3 days - Average sunshine days in March:
2.3 days - Average sunshine days in April:
1.5 days - Average sunshine days in May:
1.1 days - Average sunshine days in June:
0.9 days
- Average sunshine days in July:
2.3 days - Average sunshine days in August:
6.8 days - Average sunshine days in September:
13.6 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
11.2 days - Average sunshine days in December:
4.1 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is June (0.9 days).
Average UV index
Petit Cayenne, French Guiana
The months with the highest UV index are June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May and December (UV index 6).
Average cloud cover
Petit Cayenne, French Guiana
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 25).
Average visibility
Petit Cayenne, French Guiana
The months with the highest visibility are January, February, March, August, September, October and November (10km).
The months with the lowest visibility are April, May, June, July and December (9km).
