Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January, with its high-temperature average of 5.8°C (42.4°F) and a low-temperature average of 1.5°C (34.7°F), is the coldest month.Humidity
In Réau, the average relative humidity in January is 86%.Rainfall
In Réau, during January, the rain falls for 17.1 days and regularly aggregates up to 41mm (1.61") of precipitation. Throughout the year, in Réau, there are 194.1 rainfall days, and 555mm (21.85") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Réau. January is the month with the most snowfall. Snow falls for 3.7 days and accumulates 33mm (1.3") of snow.Daylight
In Réau, the average length of the day in January is 8h and 50min.On the first day of January, sunrise is at 08:41 and sunset at 17:03. On the last day of the month, sunrise is at 08:20 and sunset at 17:45 CET.
Sunshine
With an average of 3.8h of sunshine, January has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In January, the maximum UV index of 2 suggests this advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Réau?
Is it cold in Réau during January?
What is the average humidity in January in Réau?
How many days does it rain in January in Réau?
What is the snowiest month in Réau?
How much does it snow in Réau in January?
What is the average length of the day in January in Réau?
What time are sunrise and sunset in January in Réau?
What is the month with the least sunshine in Réau?
How long on average sun shines in January in Réau?
When is the lowest UV index in Réau?
What is the UV index reading in January in Réau?
Average temperature in January
Réau, France
- Average high temperature in January: 5.8°C
The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in January: 1.5°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (1.5°C).
Average pressure in January
Réau, France
- Average pressure in January: 1017.8mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is November (1013.7mbar).
Average wind speed in January
Réau, France
- Average wind speed in January: 14.4km/h
The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in January
Réau, France
- Average humidity in January: 86%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (70%).
Average rainfall in January
Réau, France
- Average rainfall in January: 41mm
The wettest month (with the highest rainfall) is June (64mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in January
Réau, France
- Average rainfall days in January: 17.1 days
The months with the highest number of rainy days are May and June (18.7 days).
The month with the least rainy days is September (11.7 days).
Average snowfall in January
Réau, France
- Average snowfall in January: 33mm
The month with the highest snowfall is January (33mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Réau, France
- Average snowfall days in January: 3.7 days
The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Réau, France
- Average daylight in January: 8h and 5min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January: 3h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in January
Réau, France
- Average sunshine days in January: 9.7 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is June (8.2 days).
Average UV index in January
Réau, France
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Réau, France
- Average cloud cover in January: 60
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 36).
Average visibility in January
Réau, France
- Average visibility in January: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January and November (8km).
Réau, France
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