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 arrival of September sees a recorded average high-temperature of a still refreshing 14.9°C (58.8°F), showing little divergence from the previous month's conditions. Rathmell experiences a mean low-temperature of 8°C (46.4°F) during September.Humidity
In Rathmell, United Kingdom, the average relative humidity in September is 89%.Rainfall
In Rathmell, in September, during 9.3 rainfall days, 18mm (0.71") of precipitation is typically accumulated. In Rathmell, during the entire year, the rain falls for 128.3 days and collects up to 289mm (11.38") of precipitation.Snowfall
June through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 41min.On the first day of September in Rathmell, sunrise is at 6:18 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:47 pm BST.
Sunshine
In Rathmell, the average sunshine in September is 5.4h.UV index
In Rathmell, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a regular UV index of 3 translates into these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Rathmell in September?
What is the average humidity in September in Rathmell?
How many days does it rain in September in Rathmell?
When it does not snow in Rathmell?
How many hours of daylight does Rathmell have in September?
What time are sunrise and sunset in September in Rathmell?
How many hours of sunshine does Rathmell have in September?
What is the UV index reading in September in Rathmell?
Average temperature in September
Rathmell, United Kingdom
- Average high temperature in September: 14.9°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (4.6°C).
- Average low temperature in September: 8°C
The months with the highest average low temperature are July and August (9.8°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).
Average pressure in September
Rathmell, United Kingdom
- Average pressure in September: 1015.2mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.7mbar).
Average wind speed in September
Rathmell, United Kingdom
- Average wind speed in September: 14.1km/h
The windiest month (with the highest average wind speed) is February (19.1km/h).
The calmest months (with the lowest average wind speed) are June and July (13.2km/h).
Average humidity in September
Rathmell, United Kingdom
- Average humidity in September: 89%
The months with the highest relative humidity are January, November and December (92%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in September
Rathmell, United Kingdom
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is August (33mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in September
Rathmell, United Kingdom
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in September
Rathmell, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (28mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Rathmell, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rathmell, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 5h and 2min
The month with the most sunshine is April (Average sunshine: 6h and 12min).
The months with the least sunshine are January, February and November (Average sunshine: 3h and 0min).
Average sunshine days in September
Rathmell, United Kingdom
- Average sunshine days in September: 18 days
The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is July (14 days).
Average UV index in September
Rathmell, United Kingdom
- Average UV index in September: 3
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Rathmell, United Kingdom
- Average cloud cover in September: 65
The month with the most cloud cover is November (Cloud cover 71).
The month with the least cloud cover is April (Cloud cover 59).
Average visibility in September
Rathmell, United Kingdom
- Average visibility in September: 8km
The month with the highest visibility is March (9km).
The months with the lowest visibility are January, February, April, May, June, July, August, September, October, November and December (8km).
