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
The shift into September uncovers an average high-temperature of a still refreshing 17.5°C (63.5°F), subtly different from the previous month. September's average low-temperature in Lowestoft is a mild 13.6°C (56.5°F), reflecting a minor difference from the day's peak temperatures.Humidity
August and September, with an average relative humidity of 77%, are the least humid months in Lowestoft.Rainfall
In Lowestoft, during September, the rain falls for 12.5 days and regularly aggregates up to 22mm (0.87") of precipitation. Throughout the year, there are 170.3 rainfall days, and 349mm (13.74") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Lowestoft.Sea temperature
The month with the warmest seawater in Lowestoft is September, with an average sea temperature of 17.3°C (63.1°F).Note: In 17.3°C (63.1°F), swimming is not an enjoyable activity for most. As the temperature decreases from 21°C (69.8°F) to 15°C (59°F), it becomes harder to control breathing.
Daylight
The average length of the day in September in Lowestoft is 12h and 40min.On the first day of the month, sunrise is at 6:04 am and sunset at 7:40 pm. On the last day of September, in Lowestoft, sunrise is at 6:53 am and sunset at 6:32 pm BST.
Sunshine
The average sunshine in September is 7.9h.UV index
In Lowestoft, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What is the usual temperature for Lowestoft in September?
What is the least humid month in Lowestoft?
What is the average humidity in September in Lowestoft?
How many days does it rain in September in Lowestoft?
When it does not snow in Lowestoft?
When is the sea warmest in Lowestoft?
What is the sea temperature in September in Lowestoft?
What is the average length of the day in September in Lowestoft?
What time are sunrise and sunset in September in Lowestoft?
How long on average sun shines in September in Lowestoft?
What is the UV index intensity in September in Lowestoft?
Average temperature in September
Lowestoft, United Kingdom
- Average high temperature in September: 17.5°C
The warmest month (with the highest average high temperature) is August (19.7°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in September: 13.6°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (4.1°C).
Average pressure in September
Lowestoft, United Kingdom
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is May (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010.2mbar).
Average wind speed in September
Lowestoft, United Kingdom
- Average wind speed in September: 19.6km/h
The windiest month (with the highest average wind speed) is December (26.9km/h).
The calmest month (with the lowest average wind speed) is July (17.2km/h).
Average humidity in September
Lowestoft, United Kingdom
- Average humidity in September: 77%
The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are August and September (77%).
Average rainfall in September
Lowestoft, United Kingdom
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is October (41mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in September
Lowestoft, United Kingdom
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is November (17.1 days).
The month with the least rainy days is April (11.7 days).
Average snowfall in September
Lowestoft, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (15mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Lowestoft, United Kingdom
- Average snowfall days in September: 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 September
Lowestoft, United Kingdom
- Average sea temperature in September: 17.3°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 (6.8°C).
Average daylight in September /
Average sunshine in September
Lowestoft, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days in September
Lowestoft, United Kingdom
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is April (15.8 days).
The month with the least sunshine days is November (9.2 days).
Average UV index in September
Lowestoft, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Lowestoft, United Kingdom
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in September
Lowestoft, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
Lowestoft, United Kingdom
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