Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Milford Haven starts September with an average high-temperature of a still refreshing 16.2°C (61.2°F), hinting at a minimal fluctuation from August. Throughout September, Milford Haven records a steady low-temperature average of 13.9°C (57°F), a minor decrease from its daytime counterpart.Humidity
In September, the average relative humidity in Milford Haven is 82%.Rainfall
In Milford Haven, United Kingdom, in September, during 16.5 rainfall days, 56mm (2.2") of precipitation is typically accumulated. Throughout the year, in Milford Haven, United Kingdom, there are 215.9 rainfall days, and 789mm (31.06") of precipitation is accumulated.Snowfall
In Milford Haven, snow does not fall in April through November.Sea temperature
In Milford Haven, in September, the average water temperature is 15.8°C (60.4°F).Note: Swimming in 15.8°C (60.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).
Daylight
The average length of the day in September in Milford Haven is 12h and 38min.On the first day of the month, sunrise is at 6:33 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:20 am and sunset at 6:59 pm BST.
Sunshine
The average sunshine in September is 7.2h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 4 in September transforms into this advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What are September temperatures in Milford Haven?
What is the average humidity in September in Milford Haven?
How many days does it rain in September in Milford Haven?
When it does not snow in Milford Haven?
What is the sea water temperature in September in Milford Haven?
What is the average length of the day in September in Milford Haven?
When are sunrise and sunset in September in Milford Haven?
How many hours of sunshine does Milford Haven have in September?
What is the month with the highest UV index in Milford Haven?
What is the UV index reading in September in Milford Haven?
Average temperature in September
Milford Haven, United Kingdom
- Average high temperature in September: 16.2°C
The warmest month (with the highest average high temperature) is August (17.2°C).
The month with the lowest average high temperature is February (8.4°C).
- Average low temperature in September: 13.9°C
The month with the highest average low temperature is August (15.2°C).
The coldest month (with the lowest average low temperature) is February (6.3°C).
Average pressure in September
Milford Haven, United Kingdom
- Average pressure in September: 1016.6mbar
The month with the highest atmospheric pressure is May (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.6mbar).
Average wind speed in September
Milford Haven, United Kingdom
- Average wind speed in September: 24.1km/h
The windiest month (with the highest average wind speed) is December (31.7km/h).
The calmest month (with the lowest average wind speed) is June (19.5km/h).
Average humidity in September
Milford Haven, United Kingdom
- Average humidity in September: 82%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are February, March, November and December (80%).
Average rainfall in September
Milford Haven, United Kingdom
- Average rainfall in September: 56mm
The wettest month (with the highest rainfall) is November (105mm).
The driest month (with the least rainfall) is May (33mm).
Average rainfall days in September
Milford Haven, United Kingdom
- Average rainfall days in September: 16.5 days
The month with the highest number of rainy days is November (22.7 days).
The month with the least rainy days is May (14.5 days).
Average snowfall in September
Milford Haven, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (11mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Milford Haven, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in September
Milford Haven, United Kingdom
- Average sea temperature in September: 15.8°C
The best month for swimming (with the highest average sea temperature) is August (16.2°C).
The coldest month (with the lowest average sea temperature) is March (8.7°C).
Average daylight in September /
Average sunshine in September
Milford Haven, United Kingdom
- Average daylight in September: 12h 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 September: 7h and 1min
The month with the most sunshine is May (Average sunshine: 8h and 36min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 48min).
Average sunshine days in September
Milford Haven, United Kingdom
- Average sunshine days in September: 9.8 days
The month with the most sunshine days is May (14 days).
The months with the least sunshine days are November and December (4.7 days).
Average UV index in September
Milford Haven, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January and March (UV index 2).
Average cloud cover in September
Milford Haven, United Kingdom
- Average cloud cover in September: 49
The months with the most cloud cover are November and December (Cloud cover 63).
The month with the least cloud cover is May (Cloud cover 44).
Average visibility in September
Milford Haven, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, November and December (9km).
Milford Haven, United Kingdom
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