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
The advent of September signifies a minor shift to an average high-temperature of an enjoyable 18.5°C (65.3°F), aligning closely with August. Nighttime temperature in Birchanger dips to a mean of 11.4°C (52.5°F) during September.Humidity
In September, the average relative humidity in Birchanger is 78%.Rainfall
The months with the least rainfall are January and September Rain falls for 12.1 days and accumulates 22mm (0.87") of rain.Snowfall
In Birchanger, snow does not fall in April through October.Daylight
The average length of the day in September in Birchanger is 12h and 39min.On the first day of September in Birchanger, sunrise is at 6:12 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:38 pm BST.
Sunshine
In Birchanger, the average sunshine in September is 7.3h.UV index
In September, the average daily maximum UV index in Birchanger is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Protect yourself from the midday Sun's peak UV radiation by minimizing 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
What are the temperatures in Birchanger in September?
What is the average humidity in September in Birchanger?
What is the driest month in Birchanger?
How many days does it rain in September in Birchanger?
When it does not snow in Birchanger?
What is the average length of the day in September in Birchanger?
What time are sunrise and sunset in September in Birchanger?
How long on average sun shines in September in Birchanger?
What is the UV index intensity in September in Birchanger?
Average temperature in September
Birchanger, United Kingdom
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is July (21.4°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is January (1.7°C).
Average pressure in September
Birchanger, 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
Birchanger, United Kingdom
- Average wind speed in September: 13.4km/h
The windiest month (with the highest average wind speed) is February (18.5km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in September
Birchanger, United Kingdom
- Average humidity in September: 78%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Birchanger, United Kingdom
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is June (48mm).
The driest months (with the least rainfall) are January and September (22mm).
Average rainfall days in September
Birchanger, United Kingdom
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is February (10.5 days).
Average snowfall in September
Birchanger, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (21mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Birchanger, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 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
Birchanger, 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 2min
The month with the most sunshine is August (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Birchanger, United Kingdom
- Average sunshine days in September: 13.8 days
The months with the most sunshine days are January and November (15.4 days).
The month with the least sunshine days is July (8.1 days).
Average UV index in September
Birchanger, United Kingdom
- Average UV index in September: 4
The month with the highest UV index is 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
Birchanger, United Kingdom
- Average cloud cover in September: 48
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 48).
Average visibility in September
Birchanger, 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).
