Climate and monthly weather forecastLioni, French Guiana
Climate and monthly weather forecast
Weather in January
January, the same as December, is a moderately hot winter month in Lioni, French Guiana, with an average temperature varying between 29.8°C (85.6°F) and 20.7°C (69.3°F). Lioni, French Guiana, registers an average high-temperature of a moderately hot 29.8°C (85.6°F) at the commencement of January, closely related to the preceding month. Weather in January »Weather in February
The last month of the winter, February, is also a moderately hot month in Lioni, French Guiana, with an average temperature fluctuating between 29.5°C (85.1°F) and 21.1°C (70°F). Temperature records mark February as the coldest month, with highs averaging 29.5°C (85.1°F) and lows at 21.1°C (70°F). The heat index for February is computed to be a sweltering 38°C (100.4°F). Weather in February »Weather in March
March, the first month of the spring in Lioni, is a tropical month, with an average temperature ranging between min 21.3°C (70.3°F) and max 30.4°C (86.7°F). Lioni's March showcases an average high-temperature of a hot 30.4°C (86.7°F), hardly distinct from February's 29.5°C (85.1°F). Weather in March »Weather in April
April, like March, is another hot spring month in Lioni, French Guiana, with an average temperature varying between 21.6°C (70.9°F) and 30.2°C (86.4°F). The transition into April shows a subtle variation to a still hot 30.2°C (86.4°F) from March's 30.4°C (86.7°F) in the average high-temperature. Weather in April »Weather in May
May, the last month of the spring in Lioni, is another hot month, with an average temperature varying between 30.1°C (86.2°F) and 22°C (71.6°F). May's commencement is accompanied by an average high-temperature of a still hot 30.1°C (86.2°F), diverging marginally from April's 30.2°C (86.4°F). Weather in May »Weather in June
June, the first month of the summer in Lioni, is also a hot month, with an average temperature ranging between min 21.8°C (71.2°F) and max 30.4°C (86.7°F). The advent of June presents an average high-temperature of a still tropical 30.4°C (86.7°F), maintaining a close correlation with the preceding month. Weather in June »Weather in July
July, the same as June, in Lioni, French Guiana, is another tropical summer month, with an average temperature varying between 21.1°C (70°F) and 31.3°C (88.3°F). Lioni starts July with an average high-temperature of a still hot 31.3°C (88.3°F), a minor shift from June's 30.4°C (86.7°F). Weather in July »Weather in August
The last month of the summer, August, is also a hot month in Lioni, French Guiana, with an average temperature fluctuating between 21.1°C (70°F) and 33°C (91.4°F). August's onset sees an average high-temperature of a still tropical 33°C (91.4°F), exhibiting a slight fluctuation from the previous month. Weather in August »Weather in September
September, the first month of the autumn in Lioni, is still a tropical month, with an average temperature varying between 21.1°C (70°F) and 34.3°C (93.7°F). Lioni starts September with an average high-temperature of a still hot 34.3°C (93.7°F), hinting at a minimal fluctuation from August. Weather in September »Weather in October
October, like September, is another tropical autumn month in Lioni, French Guiana, with temperature in the range of an average high of 34.8°C (94.6°F) and an average low of 21.4°C (70.5°F). Lioni reaches its highest average temperatures in October, measuring 34.8°C (94.6°F) at the peak and 21.4°C (70.5°F) at the lowest. The average heat index in October is computed to be a burning hot 51°C (123.8°F). Weather in October »Weather in November
November, the last month of the autumn in Lioni, is another tropical month, with an average temperature varying between 21.5°C (70.7°F) and 33.8°C (92.8°F). November begins with an average high-temperature of a still hot 33.8°C (92.8°F), reflecting close similarity to the preceding month. Weather in November »Weather in December
December, the first month of the winter in Lioni, is still a tropical month, with temperature in the range of an average low of 21.1°C (70°F) and an average high of 30.9°C (87.6°F). December is marked by an average high-temperature of a still hot 30.9°C (87.6°F), almost identical to the preceding 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 Lioni, there are 259.6 rainfall days, and 915mm (36.02") of precipitation is accumulated.
February is Lioni's coldest month, registering average high temperatures of 29.5°C (85.1°F) and lows of 21.1°C (70°F).
February has the least sunshine of the year, with an average of 4.5h of sunshine.
With an average relative humidity of 90%, May is the most humid month in Lioni.
May is the month with the most rainfall. Rain falls for 26.3 days and accumulates 171mm (6.73") of precipitation.
June has the longest days of the year in Lioni, French Guiana, with an average of 12h and 24min of daylight.
July through November, with an average maximum UV index of 7, are months with the highest UV index in Lioni.
The month with the least rainfall is September, when the rain falls for 10.3 days and typically collects 18mm (0.71") of precipitation.
The month with the most sunshine is September, with an average of 9.1h of sunshine.
October, with its high-temperature average of 34.8°C (94.6°F) and a low-temperature average of 21.4°C (70.5°F), is the warmest month.
October is the least humid month, with an average relative humidity of 73%.
With an average of 11h and 54min of daylight, December has the shortest days of the year.
Lioni does not utilize Daylight Saving Time (DST). -03 timezone is used throughout the entire year.
With an average maximum UV index of 5, December is the month with the lowest UV index in Lioni, French Guiana.
Average temperature
Lioni, French Guiana
The warmest month (with the highest average high temperature) is October (34.8°C).
The month with the lowest average high temperature is February (29.5°C).
The month with the highest average low temperature is May (22°C).
The coldest month (with the lowest average low temperature) is January (20.7°C).
Average pressure
Lioni, French Guiana
- Average pressure in January:
1011.9mbar - Average pressure in February:
1011.6mbar - Average pressure in March:
1011.8mbar - Average pressure in April:
1011.8mbar - Average pressure in May:
1012.1mbar - Average pressure in June:
1012.9mbar
- Average pressure in July:
1012.9mbar - Average pressure in August:
1012.3mbar - Average pressure in September:
1011.5mbar - Average pressure in October:
1010.1mbar - Average pressure in November:
1009.4mbar - Average pressure in December:
1010.7mbar
The months with the highest atmospheric pressure are June and July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).
Average wind speed
Lioni, French Guiana
- Average wind speed in January:
5.3km/h - Average wind speed in February:
5.4km/h - Average wind speed in March:
5.5km/h - Average wind speed in April:
5.1km/h - Average wind speed in May:
4.8km/h - Average wind speed in June:
4.5km/h
- Average wind speed in July:
4.4km/h - Average wind speed in August:
4.7km/h - Average wind speed in September:
5.2km/h - Average wind speed in October:
5.4km/h - Average wind speed in November:
5.4km/h - Average wind speed in December:
5.3km/h
The windiest month (with the highest average wind speed) is March (5.5km/h).
The calmest month (with the lowest average wind speed) is July (4.4km/h).
Average humidity
Lioni, French Guiana
The month with the highest relative humidity is May (90%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Lioni, French Guiana
- Average rainfall in January:
86mm - Average rainfall in February:
79mm - Average rainfall in March:
70mm - Average rainfall in April:
114mm - Average rainfall in May:
171mm - Average rainfall in June:
94mm
The wettest month (with the highest rainfall) is May (171mm).
The driest month (with the least rainfall) is September (18mm).
Average rainfall days
Lioni, French Guiana
- Average rainfall days in January:
28 days - Average rainfall days in February:
26.2 days - Average rainfall days in March:
26.5 days - Average rainfall days in April:
26.8 days - Average rainfall days in May:
26.3 days - Average rainfall days in June:
22.8 days
- Average rainfall days in July:
19.8 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
10.3 days - Average rainfall days in October:
11.3 days - Average rainfall days in November:
17.7 days - Average rainfall days in December:
28.1 days
The month with the highest number of rainy days is December (28.1 days).
The month with the least rainy days is September (10.3 days).
Average daylight / Average sunshine
Lioni, 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 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:
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:
5h and 18min - Average sunshine in February:
4h and 30min - Average sunshine in March:
5h and 0min - Average sunshine in April:
5h and 6min - Average sunshine in May:
5h and 30min - Average sunshine in June:
7h and 6min
- Average sunshine in July:
7h and 54min - Average sunshine in August:
8h and 48min - Average sunshine in September:
9h and 6min - Average sunshine in October:
8h and 54min - Average sunshine in November:
8h and 18min - Average sunshine in December:
5h and 54min
The month with the most sunshine is September (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days
Lioni, French Guiana
- Average sunshine days in January:
1.9 days - Average sunshine days in February:
1.4 days - Average sunshine days in March:
3 days - Average sunshine days in April:
2 days - Average sunshine days in May:
3.5 days - Average sunshine days in June:
5.8 days
- Average sunshine days in July:
9.6 days - Average sunshine days in August:
13.6 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
18.8 days - Average sunshine days in November:
11.1 days - Average sunshine days in December:
2 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is February (1.4 days).
Average UV index
Lioni, French Guiana
The months with the highest UV index are July, August, September, October and November (UV index 7).
The month with the lowest UV index is December (UV index 5).
Average cloud cover
Lioni, 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 45).
Average visibility
Lioni, French Guiana
The months with the highest visibility are August, September, October and November (7km).
The month with the lowest visibility is May (5km).
