Normal weather for New Castle in September
It's hot in September in New Castle with an average temperature of 33°C. Temperatures this month range from a low of 32°C to a high of 33°C. At night, you can expect temperatures between 27°C and 28°C.
In September, there is an average of 110 mm of precipitation, spread over 12 days days. The wind speed is around 5 Bft, mostly coming from the Southeast.
After some sun? Then September isn’t the best time to be in New Castle. The temperature is pleasant, but there’s too much chance of rain this month. .
New Castle in September |
London | ||
|---|---|---|---|
 Average Temperature |
33°C | 20°C | |
 High Temp |
33°C | 23°C | |
| Low Temp |
32°C | 18°C | |
 Total Precipitation |
110 mm | 60 mm | |
| Rainy Days |
12 days | 15 days | |
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
The hurricane season in New Castle runs from June to November.
Start of September
The month of September starts in New Castle with hot temperatures, averaging around 33°C during the day and nights close to 28°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 33°C, with nights close to 28°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 New Castle will be around 33°C, with nights close to 28°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
Temperature records
With 35°C, New Castle hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 28°C in 2022. The extreme night temperatures ranged from a low of 23°C to a high of 29°C.
Check out the climate of New Castle for all months and discover the best travel time
August
Daily Temperature in September in New Castle
This chart shows the average daily high temperatures in September in New Castle, measured in degrees Celsius. The bottom of the chart shows the days of September. Based on historical data, it shows the average daily temperatures for this month.
Daily Precipitation in September in New Castle
The chart below shows the average daily precipitation in September for New Castle, 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 12 days of rain in New Castle.
Daily UV Index in September in New Castle
This chart shows the average daily UV index in September in New Castle, 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 New Castle Over the Years
This chart shows the average temperature in September in New Castle, measured in degrees Celsius, over the past years.
Total Precipitation in September in New Castle Over the Years
This chart shows the average precipitation in September in New Castle, 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 New Castle
Click on a specific day in September for detailed info on the typical weather on that day in New Castle. Check out the historical temperatures and precipitation over the past 10 years on this day.
0,1 mm
0,8 mm
0,8 mm
1,0 mm
0,1 mm
6,1 mm
2,3 mm
1,7 mm
5,5 mm
8,1 mm
1,2 mm
2,1 mm
0,0 mm
0,0 mm
5,9 mm
3,0 mm
2,7 mm
6,0 mm
0,2 mm
0,3 mm
4,1 mm
3,0 mm
0,3 mm
0,7 mm
12 mm
9,4 mm
11 mm
2,1 mm
2,6 mm
16 mmWeather experiences in September in New Castle
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Average Weather in New Castle by Month
Click on a month below to see detailed weather info for New Castle. 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 New Castle for all months at once
