April weather forecast
Southampton, United Kingdom

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A lovely water fountain in front of the City Art Gallery building in Southampton, United Kingdom
A lovely water fountain in front of the City Art Gallery building in Southampton, United Kingdom

Weather in April

April brings a definitive arrival of spring in Southampton, with inviting weather conditions. In comparison to March, both daytime temperatures and sea temperatures begin to rise, signifying a more welcoming environment for outdoor pursuits. With a decrease in wind speed to 14.6km/h (9.1mph), the climate grows placid, highlighting April's tranquil ambiance. The addition of more sunshine and longer daylight hours underscores the city's transformation under spring's refreshing influence. April marks the farewell to snowfall, celebrating the departure of winter's last vestiges.

Temperature

The average high-temperature in April in Southampton, United Kingdom, at a mild 13.3°C (55.9°F), reveals a modest deviation from March's 10.4°C (50.7°F). In the month of April, the nighttime temperature dips to a steady average of 5.7°C (42.3°F).

Humidity

In Southampton, the average relative humidity in April is 80%.

Rainfall

The month with the least rainfall is April, when the rain falls for 14.3 days and typically collects 27mm (1.06") of precipitation.

Snowfall

April through October are months without snowfall.

Sea temperature

In Southampton, the average seawater temperature in April is 9.8°C (49.6°F).
Note: If planning to swim in 9.8°C (49.6°F) under 10°C (50°F), wear a protective suit. Neglecting this advice might cause immediate cold shock and troubled breathing. A splash around 13°C (55.4°F) is not much warmer.

Daylight

In Southampton, the average length of the day in April is 13h and 52min.
On the first day of the month, sunrise is at 6:39 am and sunset at 7:38 pm. On the last day of April, sunrise is at 5:39 am and sunset at 8:25 pm BST.

Sunshine

In Southampton, the average sunshine in April is 8.2h.

UV index

In April, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: A maximum high daily UV index of 3 during April translates into the following directions:
Undertake precautions - Guarding against sun damage is counselled. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.

Frequently asked questions

What is the temperature in April in Southampton?

In April, in Southampton, the average high-temperature is 13.3°C (55.9°F), and the average low-temperature is 5.7°C (42.3°F).

What is the average humidity in April in Southampton?

In April, the average relative humidity in Southampton, United Kingdom, is 80%.

What is the driest month in Southampton?

April is the month with the least rainfall in Southampton. Rain falls for 14.3 days and accumulates 27mm (1.06") of precipitation.

How many days does it rain in April in Southampton?

In Southampton, United Kingdom, in April, it is raining for 14.3 days, with typically 27mm (1.06") of accumulated precipitation.

When it does not snow in Southampton?

April through October are months without snowfall in Southampton, United Kingdom.

Does it snow in Southampton in April?

In April, in Southampton, it doesn't snow. March is the latest month when it typically snows.

What is the sea water temperature in April in Southampton?

In April, the average sea temperature in Southampton is 9.8°C (49.6°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

What is the average length of the day in April in Southampton?

In April, the average day length in Southampton is 13h and 52min.

When are sunrise and sunset in April in Southampton?

In April, on the first day of the month, sunrise is at 6:39 am and sunset at 7:38 pm. On the last day of the month, in Southampton, United Kingdom, sunrise is at 5:39 am and sunset at 8:25 pm BST.

How many hours of sunshine does Southampton have in April?

In April, the average sunshine duration in Southampton, United Kingdom, is 8.2h.

What is the UV index reading in April in Southampton?

In April, the average daily maximum UV index in Southampton is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Southampton, United Kingdom

Average temperature in April - Southampton, United Kingdom
  • Average high temperature in April: 13.3°C

The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (7.4°C).

  • Average low temperature in April: 5.7°C

The month with the highest average low temperature is August (13.3°C).
The coldest months (with the lowest average low temperature) are January and February (3.3°C).

Average pressure in April
Southampton, United Kingdom

Average pressure in April - Southampton, United Kingdom
  • Average pressure in April: 1015.6mbar

The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).

Average wind speed in April
Southampton, United Kingdom

Average wind speed in April - Southampton, United Kingdom
  • Average wind speed in April: 14.6km/h

The windiest month (with the highest average wind speed) is February (19.3km/h).
The calmest month (with the lowest average wind speed) is July (14km/h).

Average humidity in April
Southampton, United Kingdom

Average humidity in April - Southampton, United Kingdom
  • Average humidity in April: 80%

The months with the highest relative humidity are January and December (87%).
The months with the lowest relative humidity are July and August (79%).

Average rainfall in April
Southampton, United Kingdom

Average rainfall in April - Southampton, United Kingdom
  • Average rainfall in April: 27mm

The wettest month (with the highest rainfall) is December (61mm).
The driest month (with the least rainfall) is April (27mm).

Average rainfall days in April
Southampton, United Kingdom

Average rainfall days in April - Southampton, United Kingdom
  • Average rainfall days in April: 14.3 days

The month with the highest number of rainy days is November (17.5 days).
The month with the least rainy days is September (12.3 days).

Average snowfall in April
Southampton, United Kingdom

Average snowfall in April - Southampton, United Kingdom
  • Average snowfall in April: 0mm

The month with the highest snowfall is December (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in April
Southampton, United Kingdom

Average snowfall days in April - Southampton, United Kingdom
  • Average snowfall days in April: 0.1 days

The month with the highest number of snowfall days is January (1.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in April
Southampton, United Kingdom

Average sea temperature in April - Southampton, United Kingdom
  • Average sea temperature in April: 9.8°C

The best month for swimming (with the highest average sea temperature) is September (17.3°C).
The coldest month (with the lowest average sea temperature) is March (8.6°C).

Average daylight in April /
Average sunshine in April
Southampton, United Kingdom

Average daylight in April / Average sunshine in April - Southampton, United Kingdom
  • Average daylight in April: 13h and 5min

The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).

  • Average sunshine in April: 8h and 1min

The month with the most sunshine is July (Average sunshine: 8h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

Average sunshine days in April
Southampton, United Kingdom

Average sunshine days in April - Southampton, United Kingdom
  • Average sunshine days in April: 12.6 days

The month with the most sunshine days is March (14 days).
The month with the least sunshine days is November (8.9 days).

Average UV index in April
Southampton, United Kingdom

Average UV index in April - Southampton, United Kingdom
  • Average UV index in April: 3

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and November (UV index 2).

Average cloud cover in April
Southampton, United Kingdom

Average cloud cover in April - Southampton, United Kingdom
  • Average cloud cover in April: 46

The month with the most cloud cover is November (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 44).

Average visibility in April
Southampton, United Kingdom

Average visibility in April - Southampton, United Kingdom
  • Average visibility in April: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

Southampton, United Kingdom

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