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
Weather in September
Temperature
The onset of September brings with it an average high-temperature of an enjoyable 18.5°C (65.3°F), showing a negligible variation from the month before. In Charlwood, September is marked by an average low-temperature of 11.2°C (52.2°F).Humidity
The average relative humidity in September is 79%.Rainfall
In Charlwood, in September, it is raining for 10.5 days, with typically 25mm (0.98") of accumulated precipitation. In Charlwood, during the entire year, the rain falls for 163.1 days and collects up to 393mm (15.47") of precipitation.Snowfall
May through October are months without snowfall in Charlwood, United Kingdom.Daylight
In Charlwood, the average length of the day in September is 12h and 38min.On the first day of September, sunrise is at 6:15 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:40 pm BST.
Sunshine
The average sunshine in September is 7.5h.UV index
In Charlwood, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Be vigilant - Preventing sunburn is recommended. Around midday, solar radiation is most harmful; hence, exposure should be limited. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
What is the usual temperature for Charlwood in September?
What is the average humidity in September in Charlwood?
How many days does it rain in September in Charlwood?
When it does not snow in Charlwood?
What is the average length of the day in September in Charlwood?
What time are sunrise and sunset in September in Charlwood?
How long on average sun shines in September in Charlwood?
What is the UV index intensity in September in Charlwood?
Average temperature in September
Charlwood, United Kingdom
- Average high temperature in September: 18.5°C
The warmest months (with the highest average high temperature) are July and August (21.3°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).
Average pressure in September
Charlwood, United Kingdom
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed in September
Charlwood, United Kingdom
- Average wind speed in September: 13.4km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest months (with the lowest average wind speed) are July, August and September (13.4km/h).
Average humidity in September
Charlwood, United Kingdom
- Average humidity in September: 79%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in September
Charlwood, United Kingdom
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is December (45mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in September
Charlwood, United Kingdom
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is September (10.5 days).
Average snowfall in September
Charlwood, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (20mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Charlwood, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.9 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
Charlwood, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is July (Average sunshine: 8h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Charlwood, United Kingdom
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is February (11.6 days).
Average UV index in September
Charlwood, 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, March, November and December (UV index 2).
Average cloud cover in September
Charlwood, United Kingdom
- Average cloud cover in September: 47
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July, August and September (Cloud cover 47).
Average visibility in September
Charlwood, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Charlwood, United Kingdom
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