Climate and monthly weather forecastJohn, French Guiana
Climate and monthly weather forecast
Weather in January
January, like December, in John, French Guiana, is a moderately hot winter month, with an average temperature ranging between max 29.4°C (84.9°F) and min 22.4°C (72.3°F). John's January reports an average high-temperature of a warm 29.4°C (84.9°F), exhibiting a minor difference from December. Weather in January »Weather in February
The last month of the winter, February, is also a moderately hot month in John, French Guiana, with an average temperature ranging between min 22.6°C (72.7°F) and max 29.1°C (84.4°F). February, noted for its average high-temperature of 29.1°C (84.4°F) and an average low-temperature of 22.6°C (72.7°F), is considered the coldest month. February's average heat index is evaluated at a very hot 36°C (96.8°F). Weather in February »Weather in March
March, the first month of the spring in John, is also a moderately hot month, with temperature in the range of an average low of 22.8°C (73°F) and an average high of 29.5°C (85.1°F). March brings an average high-temperature of a still warm 29.5°C (85.1°F), nearly identical to the preceding month. Weather in March »Weather in April
April, the same as March, is a moderately hot spring month in John, French Guiana, with temperature in the range of an average high of 29.7°C (85.5°F) and an average low of 23.1°C (73.6°F). The arrival of April sees an average high-temperature of a still moderately hot 29.7°C (85.5°F), hardly diverging from March's 29.5°C (85.1°F). Weather in April »Weather in May
The last month of the spring, May, is another warm month in John, French Guiana, with an average temperature ranging between min 23.3°C (73.9°F) and max 29.5°C (85.1°F). May ushers in an average high-temperature of a still warm 29.5°C (85.1°F), aligning closely with the preceding month. Weather in May »Weather in June
The first month of the summer, June, is still a warm month in John, French Guiana, with an average temperature fluctuating between 29.5°C (85.1°F) and 22.8°C (73°F). June reports an average high-temperature of a still warm 29.5°C (85.1°F), matching the temperature of May. Weather in June »Weather in July
July is a hot summer month in John, French Guiana, with an average temperature fluctuating between 30.6°C (87.1°F) and 22.2°C (72°F). July reports an average high-temperature of a hot 30.6°C (87.1°F), slightly varied from June's 29.5°C (85.1°F). Weather in July »Weather in August
The last month of the summer, August, is another hot month in John, French Guiana, with an average temperature varying between 32°C (89.6°F) and 22.3°C (72.1°F). August observes an average high-temperature of a still tropical 32°C (89.6°F), marking an insignificant difference from July's 30.6°C (87.1°F). Weather in August »Weather in September
The first month of the autumn, September, is also a hot month in John, French Guiana, with an average temperature varying between 32.7°C (90.9°F) and 22.5°C (72.5°F). John records an average high-temperature of a still tropical 32.7°C (90.9°F) in September, closely mirroring the climate of the previous month. Weather in September »Weather in October
October, the same as September, in John, French Guiana, is another tropical autumn month, with an average temperature fluctuating between 33.1°C (91.6°F) and 22.8°C (73°F). The warmest month is October, with an average high-temperature of 33.1°C (91.6°F) and an average low-temperature of 22.8°C (73°F). In October, the heat index is evaluated at a burning hot 47°C (116.6°F). Weather in October »Weather in November
November, the last month of the autumn in John, is also a hot month, with an average temperature fluctuating between 32.4°C (90.3°F) and 23°C (73.4°F). John ushers in November with an average high-temperature of a still tropical 32.4°C (90.3°F), showing a close resemblance to the previous month. Weather in November »Weather in December
The first month of the winter, December, is still a hot month in John, French Guiana, with an average temperature ranging between max 30.2°C (86.4°F) and min 22.7°C (72.9°F). John's average high-temperature in December is a still hot 30.2°C (86.4°F), indicating a subtle variation from November. 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
In John, French Guiana, during the entire year, the rain falls for 253 days and collects up to 878mm (34.57") of precipitation.
January through June and December, with an average maximum UV index of 6, are months with the lowest UV index in John, French Guiana.
With average high and low temperatures of 29.1°C (84.4°F) and 22.6°C (72.7°F) respectively, February is John's coldest month.
With an average of 5.1h of sunshine, February has the least sunshine of the year.
May is the month with the most rainfall in John. Rain falls for 28 days and accumulates 137mm (5.39") of precipitation.
June is the most humid month, with an average relative humidity of 88%.
The month with the longest days is June, with an average of 12h and 24min of daylight.
The months with the highest UV index in John are July through November, with an average maximum UV index of 7.
The month with the most sunshine in John is September, with an average of 9.1h of sunshine.
October, with its high-temperature average of 33.1°C (91.6°F) and a low-temperature average of 22.8°C (73°F), is the warmest month in John, French Guiana.
October is the least humid month, with an average relative humidity of 77%.
The month with the least rainfall is October, when the rain falls for 11.6 days and typically collects 23mm (0.91") of precipitation.
December has the shortest days of the year in John, with an average of 11h and 48min of daylight.
John does not observe Daylight Saving Time (DST). -03 timezone is used throughout the entire year.
Average temperature
John, French Guiana
The warmest month (with the highest average high temperature) is October (33.1°C).
The month with the lowest average high temperature is February (29.1°C).
The month with the highest average low temperature is May (23.3°C).
The coldest month (with the lowest average low temperature) is July (22.2°C).
Average pressure
John, French Guiana
- Average pressure in January:
1012mbar - Average pressure in February:
1011.8mbar - Average pressure in March:
1012mbar - Average pressure in April:
1011.9mbar - Average pressure in May:
1012.2mbar - Average pressure in June:
1012.9mbar
- Average pressure in July:
1012.9mbar - Average pressure in August:
1012.4mbar - Average pressure in September:
1011.6mbar - Average pressure in October:
1010.3mbar - Average pressure in November:
1009.5mbar - Average pressure in December:
1010.9mbar
The months with the highest atmospheric pressure are June and July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1009.5mbar).
Average wind speed
John, French Guiana
- Average wind speed in January:
9.1km/h - Average wind speed in February:
9.5km/h - Average wind speed in March:
9.5km/h - Average wind speed in April:
9.1km/h - Average wind speed in May:
8.2km/h - Average wind speed in June:
6.9km/h
- Average wind speed in July:
6.4km/h - Average wind speed in August:
6.8km/h - Average wind speed in September:
7.7km/h - Average wind speed in October:
8.2km/h - Average wind speed in November:
8.4km/h - Average wind speed in December:
8.7km/h
The windiest months (with the highest average wind speed) are February and March (9.5km/h).
The calmest month (with the lowest average wind speed) is July (6.4km/h).
Average humidity
John, French Guiana
The month with the highest relative humidity is June (88%).
The month with the lowest relative humidity is October (77%).
Average rainfall
John, French Guiana
- Average rainfall in January:
54mm - Average rainfall in February:
51mm - Average rainfall in March:
46mm - Average rainfall in April:
91mm - Average rainfall in May:
137mm - Average rainfall in June:
135mm
The wettest month (with the highest rainfall) is May (137mm).
The driest month (with the least rainfall) is October (23mm).
Average rainfall days
John, French Guiana
- Average rainfall days in January:
23.6 days - Average rainfall days in February:
23.7 days - Average rainfall days in March:
25.3 days - Average rainfall days in April:
24.6 days - Average rainfall days in May:
28 days - Average rainfall days in June:
25.6 days
- Average rainfall days in July:
24.5 days - Average rainfall days in August:
19 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
11.6 days - Average rainfall days in November:
13.7 days - Average rainfall days in December:
21.9 days
The month with the highest number of rainy days is May (28 days).
The month with the least rainy days is September (11.5 days).
Average daylight / Average sunshine
John, 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 48min
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 18min - Average sunshine in February:
5h and 6min - Average sunshine in March:
5h and 24min - Average sunshine in April:
5h and 30min - Average sunshine in May:
5h and 54min - Average sunshine in June:
7h and 6min
- Average sunshine in July:
8h and 0min - Average sunshine in August:
8h and 42min - Average sunshine in September:
9h and 6min - Average sunshine in October:
8h and 42min - Average sunshine in November:
7h and 54min - Average sunshine in December:
6h and 36min
The month with the most sunshine is September (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days
John, French Guiana
- Average sunshine days in January:
4.8 days - Average sunshine days in February:
3.1 days - Average sunshine days in March:
2.9 days - Average sunshine days in April:
2.7 days - Average sunshine days in May:
1.8 days - Average sunshine days in June:
3 days
- Average sunshine days in July:
4.5 days - Average sunshine days in August:
8.7 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
16 days - Average sunshine days in November:
13.4 days - Average sunshine days in December:
6.4 days
The month with the most sunshine days is October (16 days).
The month with the least sunshine days is May (1.8 days).
Average UV index
John, 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
John, French Guiana
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility
John, French Guiana
The months with the highest visibility are February, March and April (9km).
The months with the lowest visibility are June, July and August (7km).
