September weather forecastDundee, United Kingdom
September
Weather in September
The onset of fall in September brings about a noticeable change in Dundee's weather pattern. With declining temperatures on land and sea, a clear shift from summer to fall is evident. Daylight duration and sunshine hours start to curtail, making way for lengthier, cooler evenings. Rainfall decreases from August, while humidity remains constant. Winding through September, a mild increase in wind speed from the preceding month adds a twist to Dundee's fall weather scene.Temperature
With the onset of September, the average high-temperature registers at a mild 14.9°C (58.8°F), subtly different from August's 17.1°C (62.8°F). Dundee's September nights cool down to an average low-temperature of 8.8°C (47.8°F).Humidity
In Dundee, the average relative humidity in September is 85%.Rainfall
In Dundee, United Kingdom, in September, it is raining for 10.8 days, with typically 19mm (0.75") of accumulated precipitation. Throughout the year, there are 146.9 rainfall days, and 321mm (12.64") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Sea temperature
In September, the average sea temperature in Dundee is 13.7°C (56.7°F).Note: Taking a dip in 13.7°C (56.7°F) can be perilous. Submersion in temperatures under 10°C (50°F) triggers severe cold shock accompanied by hyperventilation.
Daylight
The average length of the day in September is 12h and 45min.On the first day of the month, sunrise is at 6:16 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:14 am and sunset at 6:49 pm BST.
Sunshine
The average sunshine in September is 6.7h.UV index
In Dundee, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, the UV index of 3 transforms into the following advice:
Heed the precautions - It is counselled to guard against solar damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dundee, United Kingdom
- Average high temperature in September: 14.9°C
The warmest month (with the highest average high temperature) is July (17.2°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in September: 8.8°C
The month with the highest average low temperature is August (10.2°C).
The coldest month (with the lowest average low temperature) is January (1.4°C).
Average pressure in September
Dundee, United Kingdom
- Average pressure in September: 1013mbar
The month with the highest atmospheric pressure is May (1015.3mbar).
The month with the lowest atmospheric pressure is November (1006.7mbar).
Average wind speed in September
Dundee, United Kingdom
- Average wind speed in September: 14.4km/h
The windiest month (with the highest average wind speed) is January (18.9km/h).
The calmest month (with the lowest average wind speed) is June (12.2km/h).
Average humidity in September
Dundee, United Kingdom
- Average humidity in September: 85%
The months with the highest relative humidity are January, November and December (87%).
The month with the lowest relative humidity is April (81%).
Average rainfall in September
Dundee, United Kingdom
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is July (46mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Dundee, United Kingdom
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in September
Dundee, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (23mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Dundee, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Dundee, United Kingdom
- Average sea temperature in September: 13.7°C
The best month for swimming (with the highest average sea temperature) is August (14.2°C).
The coldest months (with the lowest average sea temperature) are February and March (6.5°C).
Average daylight in September /
Average sunshine in September
Dundee, United Kingdom
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 17h and 36min).
The month with the shortest days is December (Average daylight: 7h and 0min).
- Average sunshine in September: 6h and 42min
The months with the most sunshine are June and July (Average sunshine: 7h and 30min).
The months with the least sunshine are February and October (Average sunshine: 4h and 12min).
Average sunshine days in September
Dundee, United Kingdom
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is December (17.5 days).
The month with the least sunshine days is June (11 days).
Average UV index in September
Dundee, United Kingdom
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Dundee, United Kingdom
- Average cloud cover in September: 54
The month with the most cloud cover is June (Cloud cover 59).
The month with the least cloud cover is April (Cloud cover 51).
Average visibility in September
Dundee, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
The month with the lowest visibility is July (8km).
