September weather forecastGullane, United Kingdom
September
Weather in September
September, the first month of the autumn in Gullane, is still a mild month, with temperature in the range of an average high of 14.5°C (58.1°F) and an average low of 10.6°C (51.1°F).Temperature
Shifting into September, Gullane records an average high-temperature of a moderate 14.5°C (58.1°F), presenting minor fluctuations compared to the previous month. Gullane upholds a consistent average temperature of 10.6°C (51.1°F) throughout the nights of September.Humidity
In September, the average relative humidity in Gullane is 83%.Rainfall
In September, the rain falls for 10.5 days. Throughout September, 19mm (0.75") of precipitation is accumulated. In Gullane, during the entire year, the rain falls for 149.7 days and collects up to 321mm (12.64") of precipitation.Snowfall
In Gullane, snow does not fall in May through October.Sea temperature
In Gullane, the average seawater temperature in September is 13.7°C (56.7°F).Note: Engaging in a swim in 13.7°C (56.7°F) can threaten life. Brief exposure to 13°C (55.4°F) waters is uneasy, and submersion below 10°C (50°F) can lead to cold shock and disrupted breathing patterns, varying by individual.
Daylight
In Gullane, the average length of the day in September is 12h and 44min.On the first day of the month, sunrise is at 6:16 am and sunset at 8:05 pm. On the last day of September, in Gullane, sunrise is at 7:13 am and sunset at 6:48 pm BST.
Sunshine
The average sunshine in September is 7.3h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Gullane, United Kingdom. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gullane, United Kingdom
- Average high temperature in September: 14.5°C
The warmest month (with the highest average high temperature) is August (16.2°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in September: 10.6°C
The month with the highest average low temperature is August (11.9°C).
The coldest month (with the lowest average low temperature) is January (3.4°C).
Average pressure in September
Gullane, United Kingdom
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is May (1015.5mbar).
The month with the lowest atmospheric pressure is November (1007mbar).
Average wind speed in September
Gullane, United Kingdom
- Average wind speed in September: 19.6km/h
The windiest months (with the highest average wind speed) are January and December (26.8km/h).
The calmest month (with the lowest average wind speed) is June (15.7km/h).
Average humidity in September
Gullane, United Kingdom
- Average humidity in September: 83%
The months with the highest relative humidity are June and July (85%).
The months with the lowest relative humidity are March and April (81%).
Average rainfall in September
Gullane, United Kingdom
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is July (42mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in September
Gullane, United Kingdom
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in September
Gullane, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (28mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Gullane, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Gullane, 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
Gullane, United Kingdom
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is June (Average sunshine: 8h and 6min).
The month with the least sunshine is October (Average sunshine: 4h and 24min).
Average sunshine days in September
Gullane, United Kingdom
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is December (17.5 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in September
Gullane, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (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
Gullane, United Kingdom
- Average cloud cover in September: 50
The months with the most cloud cover are March, June and November (Cloud cover 54).
The month with the least cloud cover is April (Cloud cover 48).
Average visibility in September
Gullane, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, August, September, October, November and December (10km).
The months with the lowest visibility are May, June and July (9km).
