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 sea temperature 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
Weather in August
Temperature
August temperatures tend to peak at an average high of 14.8°C (58.6°F) and dip to a low of 12.6°C (54.7°F).Humidity
The average relative humidity in August is 83%.Rainfall
In Stornoway, in August, during 23.3 rainfall days, 67mm (2.64") of precipitation is typically accumulated. In Stornoway, during the entire year, the rain falls for 258.9 days and collects up to 808mm (31.81") of precipitation.Snowfall
In Stornoway, snow does not fall in June through October.Sea temperature
With an average sea temperature of 13.3°C (55.9°F), August is the month with the warmest seawater in Stornoway.Note: Swimming in 13.3°C (55.9°F) is deemed hazardous. Exposure to temperatures below 10°C (50°F) leads to immediate severe cold shock and hyperventilation.
Daylight
In Stornoway, United Kingdom, the average length of the day in August is 15h and 18min.On the first day of August, sunrise is at 5:19 am and sunset at 9:44 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 8:27 pm BST.
Sunshine
In Stornoway, the average sunshine in August is 6.6h.UV index
In Stornoway, the average daily maximum UV index in August is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In August, the maximum UV index of 3 transforms into these recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
What month is the hottest in Stornoway?
What are August temperatures in Stornoway?
What is the average humidity in August in Stornoway?
How much does it rain in Stornoway in August?
When it does not snow in Stornoway?
What month is the sea warmest in Stornoway?
What is the water temperature in August in Stornoway?
What is the average length of the day in August in Stornoway?
What time are sunrise and sunset in August in Stornoway?
How long on average sun shines in August in Stornoway?
What is the UV index reading in August in Stornoway?
Average temperature in August
Stornoway, United Kingdom
- Average high temperature in August: 14.8°C
The warmest month (with the highest average high temperature) is August (14.8°C).
The month with the lowest average high temperature is February (7.4°C).
- Average low temperature in August: 12.6°C
The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is February (5.6°C).
Average pressure in August
Stornoway, United Kingdom
- Average pressure in August: 1009.4mbar
The month with the highest atmospheric pressure is June (1014.2mbar).
The month with the lowest atmospheric pressure is December (1003.9mbar).
Average wind speed in August
Stornoway, United Kingdom
- Average wind speed in August: 22.5km/h
The windiest month (with the highest average wind speed) is January (35.6km/h).
The calmest month (with the lowest average wind speed) is July (20.5km/h).
Average humidity in August
Stornoway, United Kingdom
- Average humidity in August: 83%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are January, November and December (76%).
Average rainfall in August
Stornoway, United Kingdom
- Average rainfall in August: 67mm
The wettest month (with the highest rainfall) is December (92mm).
The driest months (with the least rainfall) are April and June (43mm).
Average rainfall days in August
Stornoway, United Kingdom
- Average rainfall days in August: 23.3 days
The month with the highest number of rainy days is December (25 days).
The month with the least rainy days is June (16.6 days).
Average snowfall in August
Stornoway, United Kingdom
- Average snowfall in August: 0mm
The month with the highest snowfall is February (30mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in August
Stornoway, United Kingdom
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in August
Stornoway, United Kingdom
- Average sea temperature in August: 13.3°C
The best month for swimming (with the highest average sea temperature) is August (13.3°C).
The coldest month (with the lowest average sea temperature) is March (7.6°C).
Average daylight in August /
Average sunshine in August
Stornoway, United Kingdom
- Average daylight in August: 15h and 2min
The month with the longest days is June (Average daylight: 18h and 6min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in August: 6h and 4min
The month with the most sunshine is June (Average sunshine: 7h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days in August
Stornoway, United Kingdom
- Average sunshine days in August: 5.5 days
The month with the most sunshine days is June (10.8 days).
The month with the least sunshine days is December (3.2 days).
Average UV index in August
Stornoway, United Kingdom
- Average UV index in August: 3
The months with the highest UV index are May, June, July 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 August
Stornoway, United Kingdom
- Average cloud cover in August: 61
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are April and May (Cloud cover 57).
Average visibility in August
Stornoway, United Kingdom
- Average visibility in August: 9km
The months with the highest visibility are April and June (10km).
The months with the lowest visibility are January, February, March, May, July, August, September, October, November and December (9km).
Stornoway, United Kingdom
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