Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
August
Weather in August
Temperature
As August takes its course, Harrow on the Hill's average high-temperature registers at a still pleasant 21.6°C (70.9°F), closely aligning with the preceding month. Harrow on the Hill observes an average nighttime low-temperature of 13.7°C (56.7°F) during the month of August.Humidity
July and August, with an average relative humidity of 74%, are the least humid months in Harrow on the Hill.Rainfall
In Harrow on the Hill, in August, during 16.7 rainfall days, 37mm (1.46") of precipitation is typically accumulated. In Harrow on the Hill, United Kingdom, during the entire year, the rain falls for 165.8 days and collects up to 345mm (13.58") of precipitation.Snowfall
In Harrow on the Hill, snow does not fall in April through October.Daylight
In Harrow on the Hill, United Kingdom, the average length of the day in August is 14h and 34min.On the first day of the month, sunrise is at 5:25 am and sunset at 8:49 pm. On the last day of August, in Harrow on the Hill, sunrise is at 6:13 am and sunset at 7:49 pm BST.
Sunshine
July and August, with an average of 8h of sunshine, are months with the most sunshine in Harrow on the Hill.UV index
In Harrow on the Hill, the average daily maximum UV index in August is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In August, the UV index of 4 transforms into the following advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Harrow on the Hill in August?
What are the least humid months in Harrow on the Hill?
What is the average humidity in August in Harrow on the Hill?
How many days does it rain in August in Harrow on the Hill?
When it does not snow in Harrow on the Hill?
What is the average length of the day in August in Harrow on the Hill?
When is the sunrise / sunset in August in Harrow on the Hill?
What are the months with the most sunshine in Harrow on the Hill?
How many hours of sunshine does Harrow on the Hill have in August?
What is the UV index intensity in August in Harrow on the Hill?
Average temperature in August
Harrow on the Hill, United Kingdom
- Average high temperature in August: 21.6°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in August: 13.7°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (1.9°C).
Average pressure in August
Harrow on the Hill, United Kingdom
- Average pressure in August: 1014.8mbar
The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in August
Harrow on the Hill, United Kingdom
- Average wind speed in August: 12.9km/h
The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in August
Harrow on the Hill, United Kingdom
- Average humidity in August: 74%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in August
Harrow on the Hill, United Kingdom
- Average rainfall in August: 37mm
The wettest month (with the highest rainfall) is June (46mm).
The driest month (with the least rainfall) is January (19mm).
Average rainfall days in August
Harrow on the Hill, United Kingdom
- Average rainfall days in August: 16.7 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (10.8 days).
Average snowfall in August
Harrow on the Hill, United Kingdom
- Average snowfall in August: 0mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in August
Harrow on the Hill, United Kingdom
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Harrow on the Hill, United Kingdom
- Average daylight in August: 14h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in August: 8h and 0min
The months with the most sunshine are July and August (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in August
Harrow on the Hill, United Kingdom
- Average sunshine days in August: 10.3 days
The month with the most sunshine days is December (16.3 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in August
Harrow on the Hill, United Kingdom
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Harrow on the Hill, United Kingdom
- Average cloud cover in August: 50
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are April and September (Cloud cover 49).
Average visibility in August
Harrow on the Hill, United Kingdom
- Average visibility in August: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
