Climate and monthly weather forecastMario, French Guiana
Climate and monthly weather forecast
Weather in January
January, the same as December, is another warm winter month in Mario, French Guiana, with an average temperature ranging between min 22°C (71.6°F) and max 28.4°C (83.1°F). The onset of January brings an average high-temperature of a still moderately hot 28.4°C (83.1°F), nearly matching the December temperature. Weather in January »Weather in February
February, the last month of the winter in Mario, is also a moderately hot month, with an average temperature varying between 27.9°C (82.2°F) and 22.3°C (72.1°F). Mario reaches its lowest average temperatures in February, measuring 27.9°C (82.2°F) at the peak and 22.3°C (72.1°F) at the lowest. February's average heat index is estimated at a hot 33°C (91.4°F). Weather in February »Weather in March
The first month of the spring, March, is also a moderately hot month in Mario, French Guiana, with an average temperature varying between 28.8°C (83.8°F) and 22.2°C (72°F). In the transition from February to March, Mario reports an average high-temperature of a still warm 28.8°C (83.8°F), indicating a close resemblance to the prior month. Weather in March »Weather in April
April, the same as March, is another warm spring month in Mario, French Guiana, with an average temperature ranging between max 28.8°C (83.8°F) and min 22.4°C (72.3°F). Mario ushers in April with an average high temperature of a still moderately hot 28.8°C (83.8°F), nearly identical to March's temperature. Weather in April »Weather in May
The last month of the spring, May, is also a moderately hot month in Mario, French Guiana, with temperature in the range of an average low of 22.3°C (72.1°F) and an average high of 28.8°C (83.8°F). May's arrival presents an average high temperature of a still warm 28.8°C (83.8°F), indicating consistency with April's weather. Weather in May »Weather in June
The first month of the summer, June, is also a moderately hot month in Mario, French Guiana, with an average temperature varying between 21.8°C (71.2°F) and 29.3°C (84.7°F). Mario observes an average high-temperature of a still moderately hot 29.3°C (84.7°F) in June, barely different from 28.8°C (83.8°F) in May. Weather in June »Weather in July
July in Mario, French Guiana, is a hot summer month, with an average temperature fluctuating between 30.3°C (86.5°F) and 21.3°C (70.3°F). Mario's shift into July is marked by a subtle change to a tropical 30.3°C (86.5°F) from June's 29.3°C (84.7°F) in temperature. Weather in July »Weather in August
The last month of the summer, August, is also a hot month in Mario, French Guiana, with temperature in the range of an average low of 21.7°C (71.1°F) and an average high of 32.3°C (90.1°F). The transition into August shows a subtle variation to a still tropical 32.3°C (90.1°F) from July's 30.3°C (86.5°F) in the average high-temperature. Weather in August »Weather in September
The first month of the autumn, September, is still a hot month in Mario, French Guiana, with an average temperature ranging between max 33.7°C (92.7°F) and min 21.8°C (71.2°F). The shift from August to September is characterized by an average high-temperature of a still hot 33.7°C (92.7°F), not significantly different from the 32.3°C (90.1°F) of August. Weather in September »Weather in October
October, the same as September, in Mario, French Guiana, is another hot autumn month, with an average temperature fluctuating between 22.2°C (72°F) and 34.3°C (93.7°F). With average high and low temperatures of 34.3°C (93.7°F) and 22.2°C (72°F) respectively, October is Mario's warmest month. The average heat index in October is estimated at a blazing hot 51°C (123.8°F). Weather in October »Weather in November
November, the last month of the autumn in Mario, is also a hot month, with an average temperature fluctuating between 33°C (91.4°F) and 22.2°C (72°F). The arrival of November brings an average high-temperature of a still tropical 33°C (91.4°F), closely following the temperature pattern of October. Weather in November »Weather in December
The first month of the winter, December, is also a moderately hot month in Mario, French Guiana, with an average temperature fluctuating between 29.8°C (85.6°F) and 22°C (71.6°F). A mild shift in the average high-temperature occurs in December, reducing from a tropical 33°C (91.4°F) in November to a warm 29.8°C (85.6°F). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Mario, French Guiana
The warmest month (with the highest average high temperature) is October (34.3°C).
The month with the lowest average high temperature is February (27.9°C).
The month with the highest average low temperature is April (22.4°C).
The coldest month (with the lowest average low temperature) is July (21.3°C).
Average pressure
Mario, French Guiana
- Average pressure in January:
1011.7mbar - Average pressure in February:
1011.5mbar - Average pressure in March:
1011.8mbar - Average pressure in April:
1011.8mbar - Average pressure in May:
1012.3mbar - Average pressure in June:
1013.1mbar
- Average pressure in July:
1013.2mbar - Average pressure in August:
1012.8mbar - Average pressure in September:
1012.1mbar - 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
Mario, French Guiana
- Average wind speed in January:
5.6km/h - Average wind speed in February:
5.7km/h - Average wind speed in March:
5.8km/h - Average wind speed in April:
5.3km/h - Average wind speed in May:
4.7km/h - Average wind speed in June:
4.2km/h
- Average wind speed in July:
4.5km/h - Average wind speed in August:
5.3km/h - Average wind speed in September:
6km/h - Average wind speed in October:
6.1km/h - Average wind speed in November:
5.9km/h - Average wind speed in December:
5.6km/h
The windiest month (with the highest average wind speed) is October (6.1km/h).
The calmest month (with the lowest average wind speed) is June (4.2km/h).
Average humidity
Mario, French Guiana
The month with the highest relative humidity is May (91%).
The month with the lowest relative humidity is October (75%).
Average rainfall
Mario, French Guiana
- Average rainfall in January:
92mm - Average rainfall in February:
90mm - Average rainfall in March:
86mm - Average rainfall in April:
142mm - Average rainfall in May:
195mm - Average rainfall in June:
133mm
The wettest month (with the highest rainfall) is May (195mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days
Mario, French Guiana
- Average rainfall days in January:
25.4 days - Average rainfall days in February:
22.9 days - Average rainfall days in March:
25.9 days - Average rainfall days in April:
26.5 days - Average rainfall days in May:
28.9 days - Average rainfall days in June:
26.6 days
- Average rainfall days in July:
26.8 days - Average rainfall days in August:
21.1 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
12 days - Average rainfall days in November:
16.9 days - Average rainfall days in December:
25.1 days
The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is October (12 days).
Average daylight / Average sunshine
Mario, French Guiana
- Average daylight in January:
12h and 0min - 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 18min
- Average daylight in July:
12h and 18min - Average daylight in August:
12h and 12min - Average daylight in September:
12h and 6min - Average daylight in October:
12h and 0min - Average daylight in November:
12h and 0min - Average daylight in December:
11h and 54min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in January:
5h and 12min - Average sunshine in February:
4h and 0min - Average sunshine in March:
4h and 36min - Average sunshine in April:
4h and 48min - Average sunshine in May:
5h and 30min - Average sunshine in June:
6h and 48min
- Average sunshine in July:
7h and 24min - Average sunshine in August:
8h and 24min - Average sunshine in September:
8h and 48min - Average sunshine in October:
8h and 42min - Average sunshine in November:
8h and 0min - Average sunshine in December:
5h and 54min
The month with the most sunshine is September (Average sunshine: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days
Mario, French Guiana
- Average sunshine days in January:
4.8 days - Average sunshine days in February:
4.9 days - Average sunshine days in March:
4.2 days - Average sunshine days in April:
2.7 days - Average sunshine days in May:
1.8 days - Average sunshine days in June:
2 days
- Average sunshine days in July:
2.5 days - Average sunshine days in August:
6.4 days - Average sunshine days in September:
13.5 days - Average sunshine days in October:
16.3 days - Average sunshine days in November:
10.7 days - Average sunshine days in December:
4.5 days
The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is May (1.8 days).
Average UV index
Mario, French Guiana
The months with the highest UV index are August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, November and December (UV index 6).
Average cloud cover
Mario, French Guiana
The month with the most cloud cover is February (Cloud cover 78).
The month with the least cloud cover is October (Cloud cover 46).
Average visibility
Mario, French Guiana
The months with the highest visibility are September and October (7km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, November and December (6km).





