September weather forecastBosham, United Kingdom
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Bosham, United Kingdom, with an average temperature ranging between min 12.2°C (54°F) and max 18°C (64.4°F).Temperature
The start of September marks an average high-temperature of a still enjoyable 18°C (64.4°F), hardly distinguishable from the conditions in August. Throughout the month of September, Bosham sees a steady low-temperature average of 12.2°C (54°F).Humidity
In September, the average relative humidity is 80%.Rainfall
In Bosham, in September, it is raining for 11.5 days, with typically 25mm (0.98") of accumulated precipitation. In Bosham, during the entire year, the rain falls for 175.3 days and collects up to 435mm (17.13") of precipitation.Snowfall
In Bosham, United Kingdom, snow does not fall in April through October.Sea temperature
With an average sea temperature of 17.3°C (63.1°F), September is the month with the warmest seawater.Note: For the majority, swimming in water with a temperature of 17.3°C (63.1°F) is not enjoyable. The difficulty in managing breathing rises as the temperature decreases from 21°C (69.8°F) to 15°C (59°F).
Daylight
In September, the average length of the day in Bosham is 12h and 37min.On the first day of September in Bosham, United Kingdom, sunrise is at 6:18 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:43 pm BST.
Sunshine
The average sunshine in September in Bosham is 7.9h.UV index
In Bosham, United Kingdom, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bosham, United Kingdom
- Average high temperature in September: 18°C
The warmest month (with the highest average high temperature) is July (20°C).
The month with the lowest average high temperature is January (7.6°C).
- Average low temperature in September: 12.2°C
The month with the highest average low temperature is August (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (3.9°C).
Average pressure in September
Bosham, United Kingdom
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed in September
Bosham, United Kingdom
- Average wind speed in September: 16.7km/h
The windiest month (with the highest average wind speed) is December (22.1km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).
Average humidity in September
Bosham, United Kingdom
- Average humidity in September: 80%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is July (79%).
Average rainfall in September
Bosham, United Kingdom
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is November (53mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Bosham, United Kingdom
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is November (18.4 days).
The month with the least rainy days is September (11.5 days).
Average snowfall in September
Bosham, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Bosham, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Bosham, 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 (8.4°C).
Average daylight in September /
Average sunshine in September
Bosham, United Kingdom
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Bosham, United Kingdom
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is November (9.3 days).
Average UV index in September
Bosham, United Kingdom
- Average UV index in September: 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 September
Bosham, United Kingdom
- Average cloud cover in September: 43
The month with the most cloud cover is November (Cloud cover 60).
The months with the least cloud cover are July and September (Cloud cover 43).
Average visibility in September
Bosham, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are March and June (10km).
The months with the lowest visibility are January, February, April, May, July, August, September, October, November and December (9km).
