Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April's average high-temperature stands at a fresh 11.6°C (52.9°F), showing little deviation from March's 8.9°C (48°F). Calais experiences an average nighttime temperature of 7.8°C (46°F) in April, reflecting a minor difference from the day's peak.Humidity
In April, the average relative humidity in Calais is 79%.Rainfall
The month with the least rainfall is April, when the rain falls for 12.2 days and typically collects 19mm (0.75") of precipitation.Snowfall
In Calais, snow does not fall in April through October.Sea temperature
In Calais, the average seawater temperature in April is 9.5°C (49.1°F).Note: Danger awaits those who swim in 9.5°C (49.1°F) without protection. Falling below 10°C (50°F) means intense cold shock and hyperventilation.
Daylight
In April, the average length of the day is 13h and 52min.On the first day of April, sunrise is at 07:26 and sunset at 20:25. On the last day of the month, sunrise is at 06:26 and sunset at 21:12 CEST.
Sunshine
The average sunshine in April in Calais is 8.5h.UV index
The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 3 in April translates into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What are the temperatures in Calais in April?
What is the average humidity in April in Calais?
What is the driest month in Calais?
How many days does it rain in April in Calais?
When it does not snow in Calais?
Does it snow in Calais in April?
What is the water temperature in April in Calais?
How many hours of daylight does Calais have in April?
What time are sunrise and sunset in April in Calais?
How long on average sun shines in April in Calais?
How high is the UV index in April in Calais?
Average temperature in April
Calais, France
- Average high temperature in April: 11.6°C
The warmest month (with the highest average high temperature) is August (19.7°C).
The month with the lowest average high temperature is February (7.1°C).
- Average low temperature in April: 7.8°C
The month with the highest average low temperature is August (15.9°C).
The coldest months (with the lowest average low temperature) are January and February (4.5°C).
Average pressure in April
Calais, France
- Average pressure in April: 1015.8mbar
The month with the highest atmospheric pressure is September (1017.4mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).
Average wind speed in April
Calais, France
- Average wind speed in April: 19.2km/h
The windiest month (with the highest average wind speed) is December (28.2km/h).
The calmest month (with the lowest average wind speed) is July (19km/h).
Average humidity in April
Calais, France
- Average humidity in April: 79%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is September (78%).
Average rainfall in April
Calais, France
- Average rainfall in April: 19mm
The wettest month (with the highest rainfall) is October (55mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in April
Calais, France
- Average rainfall days in April: 12.2 days
The month with the highest number of rainy days is November (19.5 days).
The month with the least rainy days is April (12.2 days).
Average snowfall in April
Calais, France
- Average snowfall in April: 0mm
The month with the highest snowfall is January (19mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in April
Calais, France
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is January (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Calais, France
- Average sea temperature in April: 9.5°C
The best months for swimming (with the highest average sea temperature) are August and September (17.8°C).
The coldest month (with the lowest average sea temperature) is March (7.7°C).
Average daylight in April /
Average sunshine in April
Calais, France
- Average daylight in April: 13h and 5min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in April: 8h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 4h and 6min).
Average sunshine days in April
Calais, France
- Average sunshine days in April: 15.7 days
The month with the most sunshine days is April (15.7 days).
The month with the least sunshine days is November (8.8 days).
Average UV index in April
Calais, France
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in April
Calais, France
- Average cloud cover in April: 39
The months with the most cloud cover are November and December (Cloud cover 59).
The months with the least cloud cover are April and August (Cloud cover 39).
Average visibility in April
Calais, France
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Calais, France
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