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 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
September
Weather in September
Temperature
Martlesham, United Kingdom, notes an average high-temperature of an enjoyable 18.4°C (65.1°F) in September, displaying minor variation from August. Martlesham witnesses a consistent average low-temperature of 12.7°C (54.9°F) throughout September.Humidity
In Martlesham, the average relative humidity in September is 77%.Rainfall
In Martlesham, during September, the rain falls for 12.2 days and regularly aggregates up to 27mm (1.06") of precipitation. Throughout the year, there are 175.8 rainfall days, and 418mm (16.46") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Martlesham.Daylight
The average length of the day in September in Martlesham is 12h and 39min.On the first day of the month, sunrise is at 6:07 am and sunset at 7:41 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:34 pm BST.
Sunshine
The average sunshine in September is 7.8h.UV index
The average daily maximum UV index in September in Martlesham is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Martlesham?
What is the average humidity in September in Martlesham?
How much does it rain in Martlesham in September?
When it does not snow in Martlesham?
How many hours of daylight does Martlesham have in September?
When are sunrise and sunset in September in Martlesham?
How long on average sun shines in September in Martlesham?
What is the UV index reading in September in Martlesham?
Average temperature in September
Martlesham, United Kingdom
- Average high temperature in September: 18.4°C
The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (6.5°C).
- Average low temperature in September: 12.7°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).
Average pressure in September
Martlesham, United Kingdom
- Average pressure in September: 1016.7mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in September
Martlesham, United Kingdom
- Average wind speed in September: 16.2km/h
The windiest month (with the highest average wind speed) is December (21.9km/h).
The calmest month (with the lowest average wind speed) is July (14.7km/h).
Average humidity in September
Martlesham, United Kingdom
- Average humidity in September: 77%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Martlesham, United Kingdom
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is December (48mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Martlesham, United Kingdom
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is September (12.2 days).
Average snowfall in September
Martlesham, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (25mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Martlesham, 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 daylight in September /
Average sunshine in September
Martlesham, 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: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Martlesham, United Kingdom
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in September
Martlesham, 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
Martlesham, United Kingdom
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 43).
Average visibility in September
Martlesham, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are March, June, August and September (10km).
The months with the lowest visibility are January, February, April, May, July, October, November and December (9km).
