Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The average high-temperature for September is a moderate 15.5°C (59.9°F), closely aligning with the temperature of the preceding month. Nights in September in Whitby, United Kingdom, exhibit a minor reduction to an average low temperature of 11.8°C (53.2°F).Humidity
The average relative humidity in September in Whitby is 82%.Rainfall
In September, the rain falls for 15 days. Throughout September, 34mm (1.34") of precipitation is accumulated. Throughout the year, in Whitby, there are 188.4 rainfall days, and 468mm (18.43") of precipitation is accumulated.Snowfall
In Whitby, United Kingdom, snow does not fall in May through October.Sea temperature
In Whitby, in September, the average water temperature is 14.9°C (58.8°F).Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.
Daylight
In September, the average length of the day is 12h and 42min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:40 pm BST.
Sunshine
The average sunshine in September in Whitby is 7.3h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
What are September temperatures in Whitby?
What is the average humidity in September in Whitby?
How many days does it rain in September in Whitby?
When it does not snow in Whitby?
How cold is the water in September in Whitby?
How many hours of daylight does Whitby have in September?
When are sunrise and sunset in September in Whitby?
How long on average sun shines in September in Whitby?
What is the month with the highest UV index in Whitby?
What is the UV index intensity in September in Whitby?
Average temperature in September
Whitby, United Kingdom
- Average high temperature in September: 15.5°C
The warmest months (with the highest average high temperature) are July and August (17.3°C).
The month with the lowest average high temperature is January (6.2°C).
- Average low temperature in September: 11.8°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is January (3.6°C).
Average pressure in September
Whitby, United Kingdom
- Average pressure in September: 1014.9mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.4mbar).
Average wind speed in September
Whitby, United Kingdom
- Average wind speed in September: 19.3km/h
The windiest month (with the highest average wind speed) is December (25.2km/h).
The calmest month (with the lowest average wind speed) is June (15.5km/h).
Average humidity in September
Whitby, United Kingdom
- Average humidity in September: 82%
The months with the highest relative humidity are January, November and December (84%).
The months with the lowest relative humidity are April and May (80%).
Average rainfall in September
Whitby, United Kingdom
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is June (62mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Whitby, United Kingdom
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (12.9 days).
Average snowfall in September
Whitby, United Kingdom
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (21mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Whitby, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Whitby, United Kingdom
- Average sea temperature in September: 14.9°C
The best month for swimming (with the highest average sea temperature) is August (15.8°C).
The coldest month (with the lowest average sea temperature) is March (6.8°C).
Average daylight in September /
Average sunshine in September
Whitby, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is August (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Whitby, United Kingdom
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is April (14.8 days).
The month with the least sunshine days is November (8.5 days).
Average UV index in September
Whitby, 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 and November (UV index 2).
Average cloud cover in September
Whitby, United Kingdom
- Average cloud cover in September: 49
The months with the most cloud cover are February and November (Cloud cover 61).
The month with the least cloud cover is April (Cloud cover 48).
Average visibility in September
Whitby, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are March, April, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, May and June (9km).
Whitby, United Kingdom
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