Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Harwich's weather in May, with an average high-temperature of a refreshing 13.7°C (56.7°F), subtly shifts from April's 11.3°C (52.3°F). May registers an average low temperature of 9.4°C (48.9°F) in Harwich, subtly lower than the daytime maximum.Humidity
The average relative humidity in May is 81%.Rainfall
In Harwich, United Kingdom, in May, it is raining for 13.8 days, with typically 24mm (0.94") of accumulated precipitation. In Harwich, during the entire year, the rain falls for 168.5 days and collects up to 389mm (15.31") of precipitation.Snowfall
In Harwich, United Kingdom, snow does not fall in April through October.Sea temperature
In Harwich, United Kingdom, in May, the average water temperature is 11.4°C (52.5°F).Note: Swimming at temperatures less than 10°C (50°F) in 11.4°C (52.5°F) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 13°C (55.4°F) without adequate warmth can be discomforting.
Daylight
In Harwich, the average length of the day in May is 15h and 42min.On the first day of May in Harwich, sunrise is at 5:24 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 4:41 am and sunset at 9:04 pm BST.
Sunshine
The average sunshine in May is 8.4h.UV index
In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, the UV index of 4 transforms into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Frequently asked questions
What are May temperatures in Harwich?
What is the average humidity in May in Harwich?
How many days does it rain in May in Harwich?
When it does not snow in Harwich?
What is the water temperature in May in Harwich?
How many hours of daylight does Harwich have in May?
What time are sunrise and sunset in May in Harwich?
How many hours of sunshine does Harwich have in May?
What is the UV index reading in May in Harwich?
Average temperature in May
Harwich, United Kingdom
- Average high temperature in May: 13.7°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 May: 9.4°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 May
Harwich, United Kingdom
- Average pressure in May: 1016.7mbar
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 May
Harwich, United Kingdom
- Average wind speed in May: 18.3km/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 May
Harwich, United Kingdom
- Average humidity in May: 81%
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 May
Harwich, United Kingdom
- Average rainfall in May: 24mm
The wettest month (with the highest rainfall) is October (46mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in May
Harwich, United Kingdom
- Average rainfall days in May: 13.8 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 May
Harwich, United Kingdom
- Average snowfall in May: 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 May
Harwich, United Kingdom
- Average snowfall days in May: 0 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 May
Harwich, United Kingdom
- Average sea temperature in May: 11.4°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 May /
Average sunshine in May
Harwich, United Kingdom
- Average daylight in May: 15h and 4min
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 May: 8h and 2min
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 May
Harwich, United Kingdom
- Average sunshine days in May: 14.8 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 May
Harwich, United Kingdom
- Average UV index in May: 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 May
Harwich, United Kingdom
- Average cloud cover in May: 45
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 May
Harwich, United Kingdom
- Average visibility in May: 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).
Harwich, United Kingdom
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