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
In September, Great Munden experiences a minor shift in meteorological conditions with average high-temperatures marked at a refreshing 18.5°C (65.3°F), closely mirroring the climate in August. An average temperature of 11°C (51.8°F) marks the nights in September.Humidity
In Great Munden, the average relative humidity in September is 78%.Rainfall
In Great Munden, during September, the rain falls for 8.1 days and regularly aggregates up to 10mm (0.39") of precipitation. In Great Munden, during the entire year, the rain falls for 115.9 days and collects up to 163mm (6.42") of precipitation.Snowfall
In Great Munden, snow does not fall in April through October.Daylight
In Great Munden, the average length of the day in September is 12h and 39min.On the first day of September, sunrise is at 6:13 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:39 pm BST.
Sunshine
In September, the average sunshine in Great Munden is 7.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Great Munden?
What is the average humidity in September in Great Munden?
How many days does it rain in September in Great Munden?
When it does not snow in Great Munden?
What is the average length of the day in September in Great Munden?
When are sunrise and sunset in September in Great Munden?
How long on average sun shines in September in Great Munden?
What is the UV index reading in September in Great Munden?
Average temperature in September
Great Munden, United Kingdom
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is July (21.6°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (1.7°C).
Average pressure in September
Great Munden, 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
Great Munden, United Kingdom
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in September
Great Munden, 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
Great Munden, United Kingdom
- Average rainfall in September: 10mm
The wettest month (with the highest rainfall) is December (20mm).
The driest month (with the least rainfall) is April (9mm).
Average rainfall days in September
Great Munden, United Kingdom
- Average rainfall days in September: 8.1 days
The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is September (8.1 days).
Average snowfall in September
Great Munden, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Great Munden, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 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
Great Munden, 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 1min
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
Great Munden, United Kingdom
- Average sunshine days in September: 18.6 days
The month with the most sunshine days is March (19.4 days).
The month with the least sunshine days is July (14.7 days).
Average UV index in September
Great Munden, 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
Great Munden, United Kingdom
- Average cloud cover in September: 48
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 48).
Average visibility in September
Great Munden, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
