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
April
Weather in April
Temperature
April's advent denotes a minor fluctuation in the average high-temperature to a fresh 11.3°C (52.3°F) from March's 8.9°C (48°F). Harwich maintains a minor drop in temperature during April nights, with averages of 7.1°C (44.8°F).Humidity
The average relative humidity in April is 80%.Rainfall
April is the month with the least rainfall. Rain falls for 12.3 days and accumulates 16mm (0.63") of precipitation.Snowfall
April through October are months without snowfall.Sea temperature
In Harwich, the average seawater temperature in April is 9°C (48.2°F).Note: Engaging in a swim in 9°C (48.2°F) can threaten life. Brief exposure to 13°C (55.4°F) waters is uneasy, and submersion below 10°C (50°F) can lead to cold shock and disrupted breathing patterns, varying by individual.
Daylight
In Harwich, the average length of the day in April is 13h and 56min.On the first day of April, sunrise is at 6:28 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:18 pm BST.
Sunshine
The average sunshine in April is 8.6h.UV index
The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 4 in April, converts into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April in Harwich?
What is the driest month?
How many days does it rain in April?
When it does not snow?
Does it snow in April?
How cold is the water in April in Harwich?
How many hours of daylight does Harwich have in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Harwich have in April?
What is the UV index intensity in April?
Average temperature in April
Harwich, United Kingdom
- Average high temperature in April: 11.3°C
The warmest month (with the highest average high temperature) is August (20°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in April: 7.1°C
The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is January (4°C).
Average pressure in April
Harwich, United Kingdom
- Average pressure in April: 1015.8mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in April
Harwich, United Kingdom
- Average wind speed in April: 18.5km/h
The windiest month (with the highest average wind speed) is December (26.4km/h).
The calmest month (with the lowest average wind speed) is July (17.2km/h).
Average humidity in April
Harwich, United Kingdom
- Average humidity in April: 80%
The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is August (76%).
Average rainfall in April
Harwich, United Kingdom
- Average rainfall in April: 16mm
The wettest month (with the highest rainfall) is October (46mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in April
Harwich, United Kingdom
- Average rainfall days in April: 12.3 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is September (11.8 days).
Average snowfall in April
Harwich, United Kingdom
- Average snowfall in April: 0mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in April
Harwich, United Kingdom
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Harwich, United Kingdom
- Average sea temperature in April: 9°C
The best month for swimming (with the highest average sea temperature) is September (17.7°C).
The coldest month (with the lowest average sea temperature) is March (7.2°C).
Average daylight in April /
Average sunshine in April
Harwich, United Kingdom
- Average daylight in April: 13h and 5min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in April: 8h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in April
Harwich, United Kingdom
- Average sunshine days in April: 15.1 days
The months with the most sunshine days are April and September (15.1 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in April
Harwich, United Kingdom
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Harwich, United Kingdom
- Average cloud cover in April: 43
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 41).
Average visibility in April
Harwich, United Kingdom
- 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).
