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
Weather in August
Temperature
The advent of August observes an average high-temperature of a still warm 80.8°F (27.1°C), nearly identical to July's 82°F (27.8°C). During August, Belmont records an average temperature of 63.3°F (17.4°C) at night.Heat index
The heat index value for August is calculated to be 84.2°F (29°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.Heat index readings emphasize conditions of light breezes and shaded spots. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
In August, the average relative humidity is 73%.Rainfall
In August, the rain falls for 12.3 days. Throughout August, 1.69" (43mm) of precipitation is accumulated. Throughout the year, there are 142.8 rainfall days, and 27.36" (695mm) of precipitation is accumulated.Snowfall
In Belmont, snow does not fall in June through September.Daylight
In August, the average length of the day is 13h and 51min.On the first day of the month, sunrise is at 5:37 am and sunset at 8:04 pm. On the last day of August, sunrise is at 6:09 am and sunset at 7:20 pm EDT.
Sunshine
The month with the most sunshine in Belmont is August, with an average of 10.5h of sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In August, the maximum UV index of 6 translates into these guidelines:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are August temperatures?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
What is the average length of the day in August?
What time are sunrise and sunset in August?
What month has the most sunshine?
How long on average sun shines in August?
When is the highest UV index?
How high is the UV index in August?
Average temperature in August
Belmont, MA
- Average high temperature in August: 80.8°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in August: 63.3°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in August
Belmont, MA
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Belmont, MA
- Average wind speed in August: 5.9mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in August
Belmont, MA
- Average humidity in August: 73%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).
Average rainfall in August
Belmont, MA
- Average rainfall in August: 1.69"
The wettest month (with the highest rainfall) is December (2.95").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in August
Belmont, MA
- Average rainfall days in August: 12.3 days
The months with the highest number of rainy days are May and July (15.3 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in August
Belmont, MA
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Belmont, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Belmont, MA
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 10h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
Belmont, MA
- Average sunshine days in August: 16.4 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is April (13.3 days).
Average UV index in August
Belmont, MA
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in August
Belmont, MA
- Average cloud cover in August: 32
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in August
Belmont, MA
- Average visibility in August: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
Belmont, Massachusetts, USA
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