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
August, characterized by an average high temperature of 15.3°C (59.5°F) and a low temperature of 13.4°C (56.1°F), is generally the warmest month.Humidity
June through August, with an average relative humidity of 84%, are the most humid months.Rainfall
In Portnahaven, in August, it is raining for 21.5 days, with typically 58mm (2.28") of accumulated precipitation. Throughout the year, there are 238.1 rainfall days, and 631mm (24.84") of precipitation is accumulated.Snowfall
In Portnahaven, United Kingdom, snow does not fall in January, March through November.Daylight
The average length of the day in August in Portnahaven is 14h and 59min.On the first day of August in Portnahaven, sunrise is at 5:32 am and sunset at 9:31 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 8:22 pm BST.
Sunshine
In August, the average sunshine is 7.2h.UV index
The months with the highest UV index in Portnahaven are May through August, with an average maximum UV index of 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, an average UV index of 4 transforms into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest in Portnahaven?
What are the temperatures in Portnahaven in August?
What is the most humid month in Portnahaven?
What is the average humidity in August in Portnahaven?
How much does it rain in Portnahaven in August?
When it does not snow in Portnahaven?
How many hours of daylight does Portnahaven have in August?
When are sunrise and sunset in August in Portnahaven?
How long on average sun shines in August in Portnahaven?
What are the months with the highest UV index in Portnahaven?
How high is the UV index in August in Portnahaven?
Average temperature in August
Portnahaven, United Kingdom
- Average high temperature in August: 15.3°C
The warmest month (with the highest average high temperature) is August (15.3°C).
The month with the lowest average high temperature is February (7.8°C).
- Average low temperature in August: 13.4°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is February (6°C).
Average pressure in August
Portnahaven, United Kingdom
- Average pressure in August: 1010.9mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is November (1006.3mbar).
Average wind speed in August
Portnahaven, United Kingdom
- Average wind speed in August: 25km/h
The windiest month (with the highest average wind speed) is January (38km/h).
The calmest month (with the lowest average wind speed) is June (21.8km/h).
Average humidity in August
Portnahaven, United Kingdom
- Average humidity in August: 84%
The months with the highest relative humidity are June, July and August (84%).
The month with the lowest relative humidity is November (76%).
Average rainfall in August
Portnahaven, United Kingdom
- Average rainfall in August: 58mm
The wettest month (with the highest rainfall) is December (74mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in August
Portnahaven, United Kingdom
- Average rainfall days in August: 21.5 days
The month with the highest number of rainy days is December (23.8 days).
The month with the least rainy days is April (15.4 days).
Average snowfall in August
Portnahaven, United Kingdom
- Average snowfall in August: 0mm
The month with the highest snowfall is December (2mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in August
Portnahaven, United Kingdom
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (0.5 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Portnahaven, United Kingdom
- Average daylight in August: 15h and 0min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in August: 7h and 1min
The month with the most sunshine is June (Average sunshine: 8h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in August
Portnahaven, United Kingdom
- Average sunshine days in August: 6.3 days
The month with the most sunshine days is April (11.3 days).
The month with the least sunshine days is November (4.1 days).
Average UV index in August
Portnahaven, United Kingdom
- Average UV index in August: 4
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in August
Portnahaven, United Kingdom
- Average cloud cover in August: 57
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are April and May (Cloud cover 51).
Average visibility in August
Portnahaven, United Kingdom
- Average visibility in August: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
