Climate and monthly weather forecastFortuné, French Guiana
Climate and monthly weather forecast
Weather in January
January, the same as December, is a moderately hot winter month in Fortuné, French Guiana, with an average temperature fluctuating between 28°C (82.4°F) and 24°C (75.2°F). January's presence records an average high-temperature of a still warm 28°C (82.4°F), closely mirroring December's climate. Weather in January »Weather in February
February, the last month of the winter in Fortuné, is also a moderately hot month, with an average temperature varying between 27.7°C (81.9°F) and 23.9°C (75°F). In Fortuné, French Guiana, February is the coldest month, with temperatures averaging a high of 27.7°C (81.9°F) and a low of 23.9°C (75°F). The heat index for February is calculated to be a hot 32°C (89.6°F). Weather in February »Weather in March
The first month of the spring, March, is still a warm month in Fortuné, French Guiana, with an average temperature varying between 24.2°C (75.6°F) and 28.3°C (82.9°F). The arrival of March sees a recorded average high-temperature of a still warm 28.3°C (82.9°F), showing little divergence from the previous month's conditions. Weather in March »Weather in April
April, like March, in Fortuné, French Guiana, is another warm spring month, with an average temperature fluctuating between 28.5°C (83.3°F) and 24.7°C (76.5°F). April's average high-temperature stands at a still moderately hot 28.5°C (83.3°F), showing little deviation from March's 28.3°C (82.9°F). Weather in April »Weather in May
May, the last month of the spring in Fortuné, is also a moderately hot month, with an average temperature fluctuating between 24.7°C (76.5°F) and 28.6°C (83.5°F). May's onset sees an average high-temperature of a still moderately hot 28.6°C (83.5°F), exhibiting a slight fluctuation from the previous month. Weather in May »Weather in June
June, the first month of the summer in Fortuné, is still a warm month, with an average temperature varying between 28.8°C (83.8°F) and 23.8°C (74.8°F). June's commencement is accompanied by an average high-temperature of a still warm 28.8°C (83.8°F), diverging marginally from May's 28.6°C (83.5°F). Weather in June »Weather in July
July, the same as June, is another warm summer month in Fortuné, French Guiana, with temperature in the range of an average high of 29.8°C (85.6°F) and an average low of 23.8°C (74.8°F). Fortuné's average high-temperature in July sits at a still moderately hot 29.8°C (85.6°F), showing little difference from the previous month. Weather in July »Weather in August
The last month of the summer, August, is a tropical month in Fortuné, French Guiana, with temperature in the range of an average low of 23.9°C (75°F) and an average high of 30.9°C (87.6°F). Fortuné's shift into August sets the average high-temperature at a tropical 30.9°C (87.6°F), a figure that deviates only slightly from July's 29.8°C (85.6°F). Weather in August »Weather in September
September, the first month of the autumn in Fortuné, is also a hot month, with temperature in the range of an average low of 24.5°C (76.1°F) and an average high of 31.5°C (88.7°F). Fortuné, French Guiana, experiences a subtle adjustment in high-temperatures to a still hot 31.5°C (88.7°F) with the onset of September, maintaining near parity with August's 30.9°C (87.6°F). Weather in September »Weather in October
October, the same as September, in Fortuné, French Guiana, is another hot autumn month, with an average temperature fluctuating between 24.8°C (76.6°F) and 31.6°C (88.9°F). October is Fortuné's warmest month, registering average high temperatures of 31.6°C (88.9°F) and lows of 24.8°C (76.6°F). During October, the heat index is calculated to be an extremely hot 41°C (105.8°F). Weather in October »Weather in November
November, the last month of the autumn in Fortuné, is another tropical month, with an average temperature ranging between min 24.8°C (76.6°F) and max 30.8°C (87.4°F). November's average high-temperature is a still hot 30.8°C (87.4°F), maintaining a close comparison with October's 31.6°C (88.9°F). Weather in November »Weather in December
December, the first month of the winter in Fortuné, is also a moderately hot month, with an average temperature ranging between min 24.5°C (76.1°F) and max 28.8°C (83.8°F). The advent of December reveals an average high-temperature of a moderately hot 28.8°C (83.8°F), showing minimal difference from 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
Throughout the year, in Fortuné, there are 277 rainfall days, and 1707mm (67.2") of precipitation is accumulated.
The months with the lowest UV index are January through May and December, with an average maximum UV index of 6.
With an average high-temperature of 27.7°C (81.9°F) and an average low-temperature of 23.9°C (75°F), February is the coldest month in Fortuné, French Guiana.
The month with the least sunshine is February, with an average of 5.6h of sunshine.
With an average relative humidity of 86%, May is the most humid month.
May is the month with the most rainfall. Rain falls for 28.9 days and accumulates 293mm (11.54") of precipitation.
The month with the longest days in Fortuné is June, with an average of 12h and 24min of daylight.
June through November, with an average maximum UV index of 7, are months with the highest UV index.
September and October, with an average relative humidity of 76%, are the least humid months in Fortuné, French Guiana.
September is the month with the least rainfall in Fortuné. Rain falls for 12.2 days and accumulates 23mm (0.91") of precipitation.
The month with the most sunshine is September, with an average of 9.2h of sunshine.
In Fortuné, October is the warmest month, with temperatures averaging a high of 31.6°C (88.9°F) and a low of 24.8°C (76.6°F).
With an average of 11h and 54min of daylight, December has the shortest days of the year.
Fortuné, French Guiana, does not observe Daylight Saving Time (DST). -03 timezone is used over the entire year.
Average temperature
Fortuné, 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
Fortuné, 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
Fortuné, 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
Fortuné, 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
Fortuné, 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
Fortuné, 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
Fortuné, French Guiana
- Average daylight in January:
11h and 54min - Average daylight in February:
12h and 0min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 12min - Average daylight in May:
12h and 18min - Average daylight in June:
12h and 24min
- Average daylight in July:
12h and 24min - Average daylight in August:
12h and 18min - Average daylight in September:
12h and 6min - Average daylight in October:
12h and 0min - Average daylight in November:
11h and 54min - Average daylight in December:
11h and 54min
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 54min).
- Average sunshine in January:
6h and 48min - Average sunshine in February:
5h and 36min - Average sunshine in March:
6h and 0min - Average sunshine in April:
6h and 12min - Average sunshine in May:
6h and 54min - Average sunshine in June:
7h and 30min
- Average sunshine in July:
8h and 18min - Average sunshine in August:
8h and 48min - Average sunshine in September:
9h and 12min - Average sunshine in October:
9h and 6min - Average sunshine in November:
8h and 42min - Average sunshine in December:
7h and 18min
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
Fortuné, 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
Fortuné, 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
Fortuné, 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
Fortuné, 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).
