August weather forecastSan Martin, CA
August
Weather in August
The last month of the summer, August, is another warm month in San Martin, California, with an average temperature varying between 55°F (12.8°C) and 85.8°F (29.9°C).Temperature
A minimal variation is noted in San Martin's average high-temperature at the onset of August, reaching a moderately hot 85.8°F (29.9°C) from July's 86.5°F (30.3°C). From the heights of the August heat, San Martin records a mean nighttime low of 55°F (12.8°C).Heat index
August's average heat index is computed to be a tropical 89.6°F (32°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
The average relative humidity in August is 57%.Rainfall
June through August are months with the least rain in San Martin when the rain falls for 1 days and typically aggregates up to 0.08" (2mm) of rain.Daylight
In August, the average length of the day is 13h and 32min.On the first day of August, sunrise is at 6:12 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:35 pm PDT.
Sunshine
In San Martin, the average sunshine in August is 12h.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 vulnerability from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 6 in August leads to these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
San Martin, CA
- Average high temperature in August: 85.8°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is December (55.8°F).
- Average low temperature in August: 55°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).
Average pressure in August
San Martin, CA
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in August
San Martin, CA
- Average wind speed in August: 4.3mph
The windiest month (with the highest average wind speed) is May (5.4mph).
The calmest month (with the lowest average wind speed) is November (3.9mph).
Average humidity in August
San Martin, CA
- Average humidity in August: 57%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and September (55%).
Average rainfall in August
San Martin, CA
- Average rainfall in August: 0.08"
The wettest month (with the highest rainfall) is December (1.97").
The driest months (with the least rainfall) are June, July and August (0.08").
Average rainfall days in August
San Martin, CA
- Average rainfall days in August: 1 days
The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is August (1 days).
Average daylight in August /
Average sunshine in August
San Martin, CA
- Average daylight in August: 13h and 30min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- 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 0min).
Average sunshine days in August
San Martin, CA
- Average sunshine days in August: 28.7 days
The month with the most sunshine days is August (28.7 days).
The month with the least sunshine days is March (16.8 days).
Average UV index in August
San Martin, CA
- 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, November and December (UV index 3).
Average cloud cover in August
San Martin, CA
- Average cloud cover in August: 6
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in August
San Martin, 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).
