Temperatures in September
It's cool to moderate in September in Unionhall with an average temperature of 17°C. Temperatures this month range from a low of 16°C to a high of 18°C. At night, you can expect temperatures between 12°C and 14°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Unionhall in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Unionhall with mild temperatures, averaging around 18°C during the day and nights close to 14°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-September
By mid-September, the average daytime temperature stays the same at 18°C, with nights close to 13°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of September
By the end of September, the average daytime temperature in Unionhall will be around 17°C, with nights close to 13°C. A shower might show up, but overall the weather will be dry and sunny. Opt for a light coat, jumper or cardigan, and long trousers.
Precipitation in September
In September, there is an average of 75 mm of precipitation, spread over 10 days. The wind speed is around 5 Bft, mostly coming from the South.
The average precipitation chance is 35% per day this month. The weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Unionhall. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Unionhall in September |
London | ||
|---|---|---|---|
 Average Temperature |
17°C | 20°C | |
 High Temp |
18°C | 22°C | |
| Low Temp |
16°C | 17°C | |
 Total Precipitation |
75 mm | 44 mm | |
| Rainy Days |
10 days | 8 days | |
August
UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is September a good time to visit Unionhall?
Looking for sun and warm weather? Then September isn’t the best time to be in Unionhall. The temperature is too low this month for a warm stay.
Temperature records for Unionhall in September
With 26°C, Unionhall hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 11°C in 2018. The extreme night temperatures ranged from a low of 5°C to a high of 18°C.
Check out the climate of Unionhall for all months and discover the best travel time
Daily Temperature in September in Unionhall
This chart shows the average daily temperatures, both day and night, for each day in September in Unionhall, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Unionhall
The chart below shows the average daily precipitation in September for Unionhall, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 10 days of rain in Unionhall.
Daily UV Index in September in Unionhall
This chart shows the average daily UV index in September in Unionhall, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Unionhall Over the Years
This chart shows the average temperature in September in Unionhall, measured in degrees Celsius, over the past years.
Total Precipitation in September in Unionhall Over the Years
This chart shows the average precipitation in September in Unionhall, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Unionhall
Click on a specific day in September for detailed info on the typical weather on that day in Unionhall. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Unionhall
Have you been to Unionhall in September?
Share your weather experience in September in Unionhall.
Average Weather in Unionhall by Month
Click on a month below to see detailed weather info for Unionhall. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Unionhall for all months at once
