Temperatures in September
It's cool to moderate in September in Hamilton with an average temperature of 16°C. Temperatures this month range from a low of 15°C to a high of 18°C. At night, you can expect temperatures between 6°C and 11°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Hamilton 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 Hamilton with cool temperatures, averaging around 16°C during the day and nights close to 9°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month.
Mid-September
By mid-September, the average daytime temperature rises to around 17°C, with nights close to 9°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 Hamilton will be around 17°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 111 mm of precipitation, spread over 15 days. The wind speed is around 5 Bft, mostly coming from the South.
The average precipitation chance is 49% per day this month.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Hamilton. 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.
Hamilton in September |
London | ||
|---|---|---|---|
 Average Temperature |
16°C | 20°C | |
 High Temp |
18°C | 22°C | |
| Low Temp |
15°C | 17°C | |
 Total Precipitation |
111 mm | 44 mm | |
| Rainy Days |
15 days | 8 days | |
August
UV index
The UV index is a maximum of 7 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 Hamilton?
Looking for sun and warm weather? Then September isn’t the best time to be in Hamilton. The temperature is too low this month for a warm stay.
Temperature records for Hamilton in September
With 23°C, Hamilton hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 10°C in 2017. The extreme night temperatures ranged from a low of -1°C to a high of 15°C.
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Daily Temperature in September in Hamilton
This chart shows the average daily temperatures, both day and night, for each day in September in Hamilton, 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 Hamilton
The chart below shows the average daily precipitation in September for Hamilton, 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 15 days of rain in Hamilton.
Daily UV Index in September in Hamilton
This chart shows the average daily UV index in September in Hamilton, 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 Hamilton Over the Years
This chart shows the average temperature in September in Hamilton, measured in degrees Celsius, over the past years.
Total Precipitation in September in Hamilton Over the Years
This chart shows the average precipitation in September in Hamilton, 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 Hamilton
Click on a specific day in September for detailed info on the typical weather on that day in Hamilton. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Hamilton
Have you been to Hamilton in September?
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Average Weather in Hamilton by Month
Click on a month below to see detailed weather info for Hamilton. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
