August weather forecastOceanside, CA
August
Weather in August
August, the last month of the summer in Oceanside, is also a moderately hot month, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 64.2°F (17.9°C).Temperature
Oceanside's temperatures tend to reach their peak averages in August, with a high of 78.6°F (25.9°C) and a low of 64.2°F (17.9°C).Humidity
The average relative humidity in August is 69%.Rainfall
In August, in Oceanside, the rain falls for 4.3 days. Throughout August, 0.35" (9mm) of precipitation is accumulated. In Oceanside, California, during the entire year, the rain falls for 68.2 days and collects up to 9.49" (241mm) of precipitation.Ocean temperature
July and August, with an average ocean temperature of 68°F (20°C), are months with the warmest seawater in Oceanside.Note: For most, swimming in 68°F (20°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).
Daylight
In Oceanside, the average length of the day in August is 13h and 20min.On the first day of August in Oceanside, California, sunrise is at 6:03 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:15 pm PDT.
Sunshine
The months with the most sunshine are July and August, with an average of 12h of sunshine.UV index
July through September, with an average maximum UV index of 6, are months with the highest UV index in Oceanside. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In August, the maximum UV index of 6 transforms into these recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. 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. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Oceanside, CA
- Average high temperature in August: 78.6°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in August: 64.2°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).
Average pressure in August
Oceanside, CA
- Average pressure in August: 29.89"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in August
Oceanside, CA
- Average wind speed in August: 5mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).
Average humidity in August
Oceanside, CA
- Average humidity in August: 69%
The month with the highest relative humidity is June (73%).
The month with the lowest relative humidity is November (60%).
Average rainfall in August
Oceanside, CA
- Average rainfall in August: 0.35"
The wettest month (with the highest rainfall) is December (1.97").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in August
Oceanside, CA
- Average rainfall days in August: 4.3 days
The month with the highest number of rainy days is March (8 days).
The month with the least rainy days is June (2.7 days).
Average sea temperature in August
Oceanside, CA
- Average sea temperature in August: 68°F
The best month for swimming (with the highest average sea temperature) is August (68°F).
The coldest months (with the lowest average sea temperature) are January and February (58.7°F).
Average daylight in August /
Average sunshine in August
Oceanside, CA
- Average daylight in August: 13h and 18min
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 months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in August
Oceanside, CA
- Average sunshine days in August: 21.8 days
The month with the most sunshine days is October (24.2 days).
The month with the least sunshine days is February (20 days).
Average UV index in August
Oceanside, CA
- Average UV index in August: 6
The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in August
Oceanside, CA
- Average cloud cover in August: 8
The month with the most cloud cover is December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in August
Oceanside, 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).
