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 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 months of August and September bring the highest temperatures, averaging a high of 81.5°F (27.5°C).Heat index
In August, the average heat index is evaluated at a hot 86°F (30°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.For clarity, heat index numbers account for light winds and areas under shade. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
The months with the lowest humidity in Ewa are January, April through June, August through November, with an average relative humidity of 74%.Rainfall
In Ewa, during August, the rain falls for 12 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Ewa, Hawaii, during the entire year, the rain falls for 172.2 days and collects up to 12.72" (323mm) of precipitation.Daylight
The average length of the day in August is 12h and 50min.On the first day of August, sunrise is at 6:05 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 6:48 pm HST.
Sunshine
In Ewa, the average sunshine in August is 9.2h.UV index
June through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum daily UV index of 7 during August morphs into the following directions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month?
What are the temperatures in August?
What is the least humid month?
What is the average humidity in August?
How much does it rain in August?
How many hours of daylight does Ewa have in August?
When are sunrise and sunset in August?
How many hours of sunshine does Ewa have in August?
When is the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Ewa, HI
- Average high temperature in August: 81.5°F
The warmest months (with the highest average high temperature) are August and September (81.5°F).
The month with the lowest average high temperature is February (74.8°F).
- Average low temperature in August: 76.3°F
The months with the highest average low temperature are August and September (76.3°F).
The coldest month (with the lowest average low temperature) is February (69.4°F).
Average pressure in August
Ewa, HI
- Average pressure in August: 29.98"Hg
The months with the highest atmospheric pressure are March and April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in August
Ewa, HI
- Average wind speed in August: 11.3mph
The windiest month (with the highest average wind speed) is July (11.9mph).
The calmest months (with the lowest average wind speed) are January and October (9.1mph).
Average humidity in August
Ewa, HI
- Average humidity in August: 74%
The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are January, April, May, June, August, September, October and November (74%).
Average rainfall in August
Ewa, HI
- Average rainfall in August: 0.67"
The wettest month (with the highest rainfall) is March (1.77").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in August
Ewa, HI
- Average rainfall days in August: 12 days
The month with the highest number of rainy days is March (18.1 days).
The month with the least rainy days is July (11.3 days).
Average daylight in August /
Average sunshine in August
Ewa, HI
- Average daylight in August: 12h and 5min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in August: 9h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days in August
Ewa, HI
- Average sunshine days in August: 15.3 days
The months with the most sunshine days are July and August (15.3 days).
The month with the least sunshine days is March (6.8 days).
Average UV index in August
Ewa, HI
- Average UV index in August: 7
The months with the highest UV index are June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, October, November and December (UV index 6).
Average cloud cover in August
Ewa, HI
- Average cloud cover in August: 31
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in August
Ewa, HI
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Ewa, Hawaii, USA
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