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
Irvine notes an average high-temperature of a still refreshing 14.3°C (57.7°F) in September, hardly diverging from August. During September's nights, Irvine notes a minor temperature decline, reaching an average of 9.4°C (48.9°F).Humidity
January, August through December, with an average relative humidity of 88%, are the most humid months.Rainfall
In September, the rain falls for 18.9 days. Throughout September, 54mm (2.13") of precipitation is accumulated. In Irvine, during the entire year, the rain falls for 233.5 days and collects up to 779mm (30.67") of precipitation.Snowfall
May through November are months without snowfall.Daylight
The average length of the day in September is 12h and 44min.On the first day of the month, sunrise is at 6:25 am and sunset at 8:12 pm. On the last day of September, in Irvine, sunrise is at 7:20 am and sunset at 6:56 pm BST.
Sunshine
In September, the average sunshine is 5.8h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, an average UV index of 3 transforms into the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What is the temperature in September in Irvine?
What is the most humid month in Irvine?
What is the average humidity in September in Irvine?
How much does it rain in Irvine in September?
When it does not snow in Irvine?
What is the average length of the day in September in Irvine?
What time are sunrise and sunset in September in Irvine?
How long on average sun shines in September in Irvine?
What is the UV index reading in September in Irvine?
Average temperature in September
Irvine, United Kingdom
- Average high temperature in September: 14.3°C
The warmest month (with the highest average high temperature) is July (16.6°C).
The month with the lowest average high temperature is January (5.4°C).
- Average low temperature in September: 9.4°C
The month with the highest average low temperature is July (10.4°C).
The coldest month (with the lowest average low temperature) is February (2°C).
Average pressure in September
Irvine, United Kingdom
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is May (1015.4mbar).
The month with the lowest atmospheric pressure is November (1006.9mbar).
Average wind speed in September
Irvine, United Kingdom
- Average wind speed in September: 16.5km/h
The windiest month (with the highest average wind speed) is January (21.9km/h).
The calmest months (with the lowest average wind speed) are June and July (13.7km/h).
Average humidity in September
Irvine, United Kingdom
- Average humidity in September: 88%
The months with the highest relative humidity are January, August, September, October, November and December (88%).
The months with the lowest relative humidity are April and May (83%).
Average rainfall in September
Irvine, United Kingdom
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is August (87mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in September
Irvine, United Kingdom
- Average rainfall days in September: 18.9 days
The month with the highest number of rainy days is August (22.9 days).
The month with the least rainy days is April (16.6 days).
Average snowfall in September
Irvine, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (61mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Irvine, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.2 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
Irvine, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in September: 5h and 5min
The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Irvine, United Kingdom
- Average sunshine days in September: 8.1 days
The month with the most sunshine days is April (10.9 days).
The month with the least sunshine days is August (5.8 days).
Average UV index in September
Irvine, 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, November and December (UV index 2).
Average cloud cover in September
Irvine, United Kingdom
- Average cloud cover in September: 60
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is April (Cloud cover 54).
Average visibility in September
Irvine, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (9km).
The months with the lowest visibility are July and August (8km).
Irvine, United Kingdom
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