Isle of ManAverage weather for Douglas in September
It's cool to moderate in September in Douglas with an average temperature of 17°C. Temperatures this month range from a low of 16°C to a high of 19°C. At night, you can expect temperatures between 11°C and 14°C.
Start of September
The month of September starts in Douglas with mild temps, averaging around 18°C during the day and nights around 14°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
Mid September
By mid-September, daytime temps stay steady at around 18°C, with nights around 13°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in Douglas is around 16°C, while nighttime temps are about 12°C. A shower might pop up, but overall, the weather will be dry and sunny.
In September, there is an average of 67 mm of precipitation, spread over 11 days. The wind speed is around 5 Bft, mostly coming from the Southwest.
Douglas in September |
New York | ||
|---|---|---|---|
 Average temperature |
17°C | 27°C | |
 Max. temperature |
19°C | 31°C | |
| Min. temperature |
16°C | -5°C | |
 Total precipitation |
67 mm | 57 mm | |
| Rainy days |
11 days | 9 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 Douglas?
Looking for sun and warm weather? September isn’t a good month to be in Douglas. The temperatures are too low for a warm stay this month.
Temperature records
With 25°C in 2023, Douglas reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 10°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 3°C to a highest value of 18°C.
Check out the climate of Douglas for all months and discover the best travel time
Daily Temperature in September in Douglas
This chart shows the average daily high and low temperatures in September for Douglas, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Douglas
The chart below shows the average daily precipitation in September for Douglas, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 11 days of precipitation in Douglas.
Daily UV index in September in Douglas
This chart shows the average daily UV index in September in Douglas, 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 Douglas over the years
This chart shows the average temperature in September in Douglas, measured in degrees Celsius, over the past few years.
Total precipitation in September in Douglas over the years
This chart shows the average precipitation in September in Douglas, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Douglas
Click on any day in September to get detailed info about the usual weather on that day in Douglas. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Douglas
Have you been to Douglas in September?
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Average weather in Douglas by month
Click on a month below to see detailed weather info for Douglas. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
