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
At the start of April, Saint Helier's average high-temperature reaches a cool 11.4°C (52.5°F), subtly different from the preceding month. Saint Helier sees a minor drop to an average minimum temperature of 9.1°C (48.4°F) during the night in the month of April.Humidity
In April, the average relative humidity is 80%.Rainfall
In Saint Helier, during April, the rain falls for 12.8 days and regularly aggregates up to 32mm (1.26") of precipitation. In Saint Helier, during the entire year, the rain falls for 189 days and collects up to 538mm (21.18") of precipitation.Snowfall
In Saint Helier, Jersey, snow does not fall in April through October.Sea temperature
In Saint Helier, the average seawater temperature in April is 10°C (50°F).Note: Caution: 10°C (50°F) temperatures below 10°C (50°F) during swimming can result in intense cold shock and quickened breathing.
Daylight
In April, the average length of the day is 13h and 45min.On the first day of the month, sunrise is at 06:44 and sunset at 19:39. On the last day of April, sunrise is at 05:47 and sunset at 20:23 BST.
Sunshine
The average sunshine in April is 9.3h.UV index
In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 3 during April translates into the following directions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What are the temperatures in Saint Helier in April?
What is the average humidity in April in Saint Helier?
How many days does it rain in April in Saint Helier?
When it does not snow in Saint Helier?
Does it snow in Saint Helier in April?
What is the water temperature in April in Saint Helier?
What is the average length of the day in April in Saint Helier?
When is the sunrise / sunset in April in Saint Helier?
How long on average sun shines in April in Saint Helier?
How high is the UV index in April in Saint Helier?
Average temperature in April
Saint Helier, Jersey
- Average high temperature in April: 11.4°C
The warmest month (with the highest average high temperature) is August (18.2°C).
The month with the lowest average high temperature is February (9°C).
- Average low temperature in April: 9.1°C
The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (6.8°C).
Average pressure in April
Saint Helier, Jersey
- Average pressure in April: 1015.6mbar
The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1011.8mbar).
Average wind speed in April
Saint Helier, Jersey
- Average wind speed in April: 23.1km/h
The windiest month (with the highest average wind speed) is December (34km/h).
The calmest month (with the lowest average wind speed) is July (20.4km/h).
Average humidity in April
Saint Helier, Jersey
- Average humidity in April: 80%
The months with the highest relative humidity are June and July (83%).
The months with the lowest relative humidity are November and December (78%).
Average rainfall in April
Saint Helier, Jersey
- Average rainfall in April: 32mm
The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is July (25mm).
Average rainfall days in April
Saint Helier, Jersey
- Average rainfall days in April: 12.8 days
The month with the highest number of rainy days is November (21.2 days).
The months with the least rainy days are May and July (12.2 days).
Average snowfall in April
Saint Helier, Jersey
- Average snowfall in April: 0mm
The month with the highest snowfall is January (2mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in April
Saint Helier, Jersey
- Average snowfall days in April: 0 days
The months with the highest number of snowfall days are January and February (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in April
Saint Helier, Jersey
- Average sea temperature in April: 10°C
The best month for swimming (with the highest average sea temperature) is August (17°C).
The coldest months (with the lowest average sea temperature) are February and March (9°C).
Average daylight in April /
Average sunshine in April
Saint Helier, Jersey
- Average daylight in April: 13h and 5min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in April: 9h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and November (Average sunshine: 4h and 0min).
Average sunshine days in April
Saint Helier, Jersey
- Average sunshine days in April: 14.9 days
The month with the most sunshine days is May (16.8 days).
The month with the least sunshine days is November (5.8 days).
Average UV index in April
Saint Helier, Jersey
- Average UV index in April: 3
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in April
Saint Helier, Jersey
- Average cloud cover in April: 38
The months with the most cloud cover are January, November and December (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in April
Saint Helier, Jersey
- 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).
Saint Helier, Jersey
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