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
Belfast sees its peak of temperatures during July and August, with an average high-temperature of 73.9°F (23.3°C).Humidity
In Belfast, the average relative humidity in August is 82%.Rainfall
In August, the rain falls for 13 days. Throughout August, 1.85" (47mm) of precipitation is accumulated. In Belfast, during the entire year, the rain falls for 141.1 days and collects up to 24.29" (617mm) of precipitation.Snowfall
In Belfast, snow does not fall in June through September.Ocean temperature
With an average ocean temperature of 60.4°F (15.8°C), August is the month with the warmest seawater.Note: Most people find it challenging to enjoy swimming in water that is 60.4°F (15.8°C). As water temperature falls below 69.8°F (21°C), controlling breathing grows increasingly difficult.
Daylight
In August, the average length of the day is 13h and 59min.On the first day of August, sunrise is at 5:23 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 7:13 pm EDT.
Sunshine
August has the most sunshine of the year, with an average of 9.9h of sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 5 in August leads to these guidelines:
Prioritize safety - Recommendations to avert sunburn are shared. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest?
What is the temperature in August?
What is the average humidity in August in Belfast?
How much does it rain in August?
When it does not snow?
What month is the ocean warmest?
How cold is the water in August?
What is the average length of the day in August?
When is the sunrise / sunset in August?
What month has the most sunshine?
How long on average sun shines in August?
What are the months with the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Belfast, ME
- Average high temperature in August: 73.9°F
The warmest months (with the highest average high temperature) are July and August (73.9°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in August: 56.8°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in August
Belfast, ME
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Belfast, ME
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in August
Belfast, ME
- Average humidity in August: 82%
The months with the highest relative humidity are February and July (83%).
The month with the lowest relative humidity is November (77%).
Average rainfall in August
Belfast, ME
- Average rainfall in August: 1.85"
The wettest month (with the highest rainfall) is December (2.72").
The driest months (with the least rainfall) are July and September (1.46").
Average rainfall days in August
Belfast, ME
- Average rainfall days in August: 13 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in August
Belfast, ME
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Belfast, ME
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in August
Belfast, ME
- Average sea temperature in August: 60.4°F
The best month for swimming (with the highest average sea temperature) is August (60.4°F).
The coldest month (with the lowest average sea temperature) is March (37.8°F).
Average daylight in August /
Average sunshine in August
Belfast, ME
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in August: 9h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in August
Belfast, ME
- Average sunshine days in August: 15.8 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in August
Belfast, ME
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in August
Belfast, ME
- Average cloud cover in August: 37
The month with the most cloud cover is March (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 37).
Average visibility in August
Belfast, ME
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
Belfast, Maine, USA
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