August weather forecastRainbow, CA
August
Weather in August
August, the last month of the summer in Rainbow, is a tropical month, with an average temperature ranging between max 86.9°F (30.5°C) and min 63.1°F (17.3°C).Temperature
August is the warmest month, with the temperature often reaching an average high of 86.9°F (30.5°C) and an average low of 63.1°F (17.3°C).Heat index
For most parts of August, the heat index is computed to be a hot 91.4°F (33°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Understand that the heat index values take into account shaded locations and mild winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
In Rainbow, California, the average relative humidity in August is 55%.Rainfall
In Rainbow, during August, the rain falls for 3.5 days and regularly aggregates up to 0.35" (9mm) of precipitation. Throughout the year, there are 61.4 rainfall days, and 9.45" (240mm) of precipitation is accumulated.Daylight
In Rainbow, the average length of the day in August is 13h and 21min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:47 pm. On the last day of August, in Rainbow, sunrise is at 6:22 am and sunset at 7:14 pm PDT.
Sunshine
In August, the average sunshine in Rainbow is 12h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Rainbow. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: In August, the maximum UV index of 6 transforms into these recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Rainbow, CA
- Average high temperature in August: 86.9°F
The warmest month (with the highest average high temperature) is August (86.9°F).
The month with the lowest average high temperature is December (62.2°F).
- Average low temperature in August: 63.1°F
The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is February (44.4°F).
Average pressure in August
Rainbow, CA
- Average pressure in August: 29.88"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in August
Rainbow, CA
- Average wind speed in August: 4.3mph
The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest months (with the lowest average wind speed) are August, September and October (4.3mph).
Average humidity in August
Rainbow, CA
- Average humidity in August: 55%
The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is November (52%).
Average rainfall in August
Rainbow, CA
- Average rainfall in August: 0.35"
The wettest month (with the highest rainfall) is December (1.85").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in August
Rainbow, CA
- Average rainfall days in August: 3.5 days
The month with the highest number of rainy days is March (8.8 days).
The month with the least rainy days is June (1.4 days).
Average daylight in August /
Average sunshine in August
Rainbow, CA
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in August
Rainbow, CA
- Average sunshine days in August: 25 days
The month with the most sunshine days is June (27.3 days).
The month with the least sunshine days is February (20 days).
Average UV index in August
Rainbow, CA
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in August
Rainbow, CA
- Average cloud cover in August: 6
The month with the most cloud cover is March (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in August
Rainbow, CA
- 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).





