Temperatures in September
It's pleasantly warm in September in Graham with an average temperature of 22°C. Temperatures this month range from a low of 19°C to a high of 26°C. At night, you can expect temperatures between 8°C and 14°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Graham 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 Graham with warm temperatures, averaging around 25°C during the day and nights close to 12°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 drops to around 22°C, with nights close to 11°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of September
By the end of September, the average daytime temperature in Graham will be around 21°C, with nights close to 10°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
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Precipitation in September
In September, there is an average of 115 mm of precipitation, spread over 8 days. The wind speed is around 3 Bft, mostly coming from the South.
The average precipitation chance is 27% per day this month. Though it seems pretty low, 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 Graham. 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.
Graham in September |
London | ||
|---|---|---|---|
 Average Temperature |
22°C | 20°C | |
 High Temp |
26°C | 22°C | |
| Low Temp |
19°C | 17°C | |
 Total Precipitation |
115 mm | 44 mm | |
| Rainy Days |
8 days | 8 days | |
August
UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is September a good time to visit Graham?
After some sun? Then September isn’t the best time to be in Graham. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Graham in September
With 33°C, Graham hit the highest temperature in the last 10 years in September 2020. The lowest daytime temperature in this month was 12°C in 2019. The extreme night temperatures ranged from a low of 1°C to a high of 17°C.
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Daily Temperature in September in Graham
This chart shows the average daily temperatures, both day and night, for each day in September in Graham, 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 Graham
The chart below shows the average daily precipitation in September for Graham, 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 8 days of rain in Graham.
Daily UV Index in September in Graham
This chart shows the average daily UV index in September in Graham, 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 Graham Over the Years
This chart shows the average temperature in September in Graham, measured in degrees Celsius, over the past years.
Total Precipitation in September in Graham Over the Years
This chart shows the average precipitation in September in Graham, 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 Graham
Click on a specific day in September for detailed info on the typical weather on that day in Graham. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Graham
Have you been to Graham in September?
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Average Weather in Graham by Month
Click on a month below to see detailed weather info for Graham. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
