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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, like December, in Roche Hirondelle, French Guiana, is another warm winter month, with an average temperature varying between 24.2°C (75.6°F) and 27.8°C (82°F). The shift from December to January is characterized by an average high-temperature of a still warm 27.8°C (82°F), not significantly different from the 28.6°C (83.5°F) of December. Weather in January »
Weather in February
February, the last month of the winter in Roche Hirondelle, is also a moderately hot month, with an average temperature fluctuating between 24.3°C (75.7°F) and 27.5°C (81.5°F). February is the coldest month, with an average high-temperature of 27.5°C (81.5°F) and an average low-temperature of 24.3°C (75.7°F). Throughout February, the heat index is appraised at a hot 31°C (87.8°F). Weather in February »
Weather in March
The first month of the spring, March, is also a moderately hot month in Roche Hirondelle, French Guiana, with an average temperature varying between 28°C (82.4°F) and 24.7°C (76.5°F). Roche Hirondelle experiences a transition to a still warm 28°C (82.4°F) in average high-temperatures with the arrival of March, not greatly differing from February's 27.5°C (81.5°F). Weather in March »
Weather in April
April, the same as March, is a moderately hot spring month in Roche Hirondelle, French Guiana, with an average temperature fluctuating between 28.3°C (82.9°F) and 24.8°C (76.6°F). On the advent of April, Roche Hirondelle's average high-temperature exhibits a minor adjustment to a still warm 28.3°C (82.9°F) from March's 28°C (82.4°F). Weather in April »
Weather in May
May, the last month of the spring in Roche Hirondelle, is also a moderately hot month, with an average temperature fluctuating between 24.9°C (76.8°F) and 28.5°C (83.3°F). As Roche Hirondelle, French Guiana, welcomes May, the average high-temperature is noted at a still warm 28.5°C (83.3°F), closely aligning with the preceding month. Weather in May »
Weather in June
June, the first month of the summer in Roche Hirondelle, is still a warm month, with an average temperature fluctuating between 28.8°C (83.8°F) and 24.5°C (76.1°F). The arrival of June sees a recorded average high-temperature of a still warm 28.8°C (83.8°F), showing little divergence from the previous month's conditions. Weather in June »
Weather in July
July, like June, in Roche Hirondelle, French Guiana, is a moderately hot summer month, with an average temperature varying between 24.3°C (75.7°F) and 29.5°C (85.1°F). The beginning of July records an average high-temperature of a still warm 29.5°C (85.1°F), marking a negligible difference from June's 28.8°C (83.8°F). Weather in July »
Weather in August
August, the last month of the summer in Roche Hirondelle, is a hot month, with an average temperature varying between 24.5°C (76.1°F) and 30.4°C (86.7°F). August's presence marks an average high-temperature of a hot 30.4°C (86.7°F), subtly varied from July's 29.5°C (85.1°F). Weather in August »
Weather in September
September, the first month of the autumn in Roche Hirondelle, is still a tropical month, with an average temperature ranging between min 24.8°C (76.6°F) and max 30.9°C (87.6°F). Temperatures reach their maximum during September and October, recording an average high-temperature of 30.9°C (87.6°F). During September, the heat index is appraised at a blisteringly hot 40°C (104°F). Weather in September »
Weather in October
October, the same as September, in Roche Hirondelle, French Guiana, is a hot autumn month, with temperature in the range of an average high of 30.9°C (87.6°F) and an average low of 25°C (77°F). Peak temperatures are observed in September and October, averaging a high-temperature of 30.9°C (87.6°F). The heat index value during October is appraised at a blistering 40°C (104°F). Weather in October »
Weather in November
November, the last month of the autumn in Roche Hirondelle, is also a hot month, with an average temperature fluctuating between 25.1°C (77.2°F) and 30.4°C (86.7°F). Roche Hirondelle records an average high-temperature of a still tropical 30.4°C (86.7°F) in November, maintaining a close correlation with October's 30.9°C (87.6°F). Weather in November »
Weather in December
The first month of the winter, December, is also a moderately hot month in Roche Hirondelle, French Guiana, with an average temperature ranging between max 28.6°C (83.5°F) and min 24.7°C (76.5°F). With December's advent, Roche Hirondelle, French Guiana, sees an average high-temperature of a warm 28.6°C (83.5°F), subtly shifted from November's 30.4°C (86.7°F). 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 Roche Hirondelle?
Throughout the year, in Roche Hirondelle, there are 288 rainfall days, and 1773mm (69.8") of precipitation is accumulated.
When is the lowest UV index in Roche Hirondelle?
The months with the lowest UV index in Roche Hirondelle, French Guiana, are January through June and December, with an average maximum UV index of 6.
What are the coldest months in Roche Hirondelle?
The lowest temperatures in Roche Hirondelle are recorded in February, with averages reaching a high of 27.5°C (81.5°F) and a low of 24.3°C (75.7°F).
What is the most humid month in Roche Hirondelle?
February and May, with an average relative humidity of 84%, are most humid months in Roche Hirondelle, French Guiana.
What is the month with the least sunshine in Roche Hirondelle?
With an average of 5.8h of sunshine, February has the least sunshine of the year in Roche Hirondelle.
What is the wettest month in Roche Hirondelle?
May is the month with the most rainfall. Rain falls for 29.6 days and accumulates 279mm (10.98") of precipitation.
When are the longest days in Roche Hirondelle?
The month with the longest days in Roche Hirondelle is June, with an average of 12h and 24min of daylight.
When is the highest UV index in Roche Hirondelle?
July through November, with an average maximum UV index of 7, are months with the highest UV index in Roche Hirondelle, French Guiana.
What is the warmest month in Roche Hirondelle?
In Roche Hirondelle, French Guiana, the months of September and October are known for the peak temperatures, reaching an average high of 30.9°C (87.6°F).
What are the least humid months in Roche Hirondelle?
The months with the lowest humidity are September and October, with an average relative humidity of 77%.
What is the driest month in Roche Hirondelle?
September is the month with the least rainfall in Roche Hirondelle. Rain falls for 14.3 days and accumulates 29mm (1.14") of precipitation.
What month has the most sunshine in Roche Hirondelle?
With an average of 9.3h of sunshine, September has the most sunshine of the year in Roche Hirondelle.
What is the month with the shortest days in Roche Hirondelle?
The month with the shortest days in Roche Hirondelle is December, with an average of 11h and 48min of daylight.
Is there Daylight Saving Time (DST) in Roche Hirondelle?
Roche Hirondelle, French Guiana, does not utilize Daylight Saving Time (DST). -03 timezone is used throughout the entire year.
Average temperature
Roche Hirondelle, French Guiana
The warmest months (with the highest average high temperature) are September and October (30.9°C).
The month with the lowest average high temperature is February (27.5°C).
The month with the highest average low temperature is November (25.1°C).
The coldest month (with the lowest average low temperature) is January (24.2°C).
Average pressure
Roche Hirondelle, French Guiana
- Average pressure in January:
1011.9mbar - Average pressure in February:
1011.8mbar - Average pressure in March:
1012mbar - Average pressure in April:
1012mbar - Average pressure in May:
1012.3mbar - Average pressure in June:
1013.1mbar
- Average pressure in July:
1013.1mbar - Average pressure in August:
1012.6mbar - Average pressure in September:
1012mbar - Average pressure in October:
1010.6mbar - Average pressure in November:
1009.7mbar - Average pressure in December:
1010.9mbar
The months with the highest atmospheric pressure are June and July (1013.1mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed
Roche Hirondelle, French Guiana
- Average wind speed in January:
14.3km/h - Average wind speed in February:
15.3km/h - Average wind speed in March:
14.9km/h - Average wind speed in April:
13.8km/h - Average wind speed in May:
12.8km/h - Average wind speed in June:
10.3km/h
- Average wind speed in July:
9.7km/h - Average wind speed in August:
11.3km/h - Average wind speed in September:
12.7km/h - Average wind speed in October:
12.6km/h - Average wind speed in November:
12.7km/h - Average wind speed in December:
13.6km/h
The windiest month (with the highest average wind speed) is February (15.3km/h).
The calmest month (with the lowest average wind speed) is July (9.7km/h).
Average humidity
Roche Hirondelle, French Guiana
The months with the highest relative humidity are February and May (84%).
The months with the lowest relative humidity are September and October (77%).
Average rainfall
Roche Hirondelle, French Guiana
- Average rainfall in January:
161mm - Average rainfall in February:
159mm - Average rainfall in March:
129mm - Average rainfall in April:
203mm - Average rainfall in May:
279mm - Average rainfall in June:
244mm
The wettest month (with the highest rainfall) is May (279mm).
The driest month (with the least rainfall) is September (29mm).
Average rainfall days
Roche Hirondelle, French Guiana
- Average rainfall days in January:
27.6 days - Average rainfall days in February:
26.3 days - Average rainfall days in March:
27.8 days - Average rainfall days in April:
27.3 days - Average rainfall days in May:
29.6 days - Average rainfall days in June:
28.3 days
- Average rainfall days in July:
27.4 days - Average rainfall days in August:
20.9 days - Average rainfall days in September:
14.3 days - Average rainfall days in October:
14.3 days - Average rainfall days in November:
18.2 days - Average rainfall days in December:
26 days
The month with the highest number of rainy days is May (29.6 days).
The months with the least rainy days are September and October (14.3 days).
Average daylight / Average sunshine
Roche Hirondelle, 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:
7h and 1min - Average sunshine in February:
5h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
6h and 2min - Average sunshine in May:
6h and 5min - Average sunshine in June:
7h and 4min
- Average sunshine in July:
8h and 2min - Average sunshine in August:
8h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
9h and 1min - Average sunshine in November:
8h and 5min - Average sunshine in December:
7h and 2min
The month with the most sunshine is September (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days
Roche Hirondelle, French Guiana
- Average sunshine days in January:
1.4 days - Average sunshine days in February:
1.1 days - Average sunshine days in March:
1.1 days - Average sunshine days in April:
1.1 days - Average sunshine days in May:
0.6 days - Average sunshine days in June:
0.8 days
- Average sunshine days in July:
1.5 days - Average sunshine days in August:
5.8 days - Average sunshine days in September:
11.6 days - Average sunshine days in October:
13.2 days - Average sunshine days in November:
9.1 days - Average sunshine days in December:
3.2 days
The month with the most sunshine days is October (13.2 days).
The month with the least sunshine days is May (0.6 days).
Average UV index
Roche Hirondelle, French Guiana
The months with the highest UV index are July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June and December (UV index 6).
Average cloud cover
Roche Hirondelle, French Guiana
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 25).
Average visibility
Roche Hirondelle, French Guiana
The months with the highest visibility are January, February, March, April, August, September, October, November and December (10km).
The months with the lowest visibility are May, June and July (9km).
