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Best
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Best
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Best
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Best
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Tan
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Tan
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Tan
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Tan
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Tan
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Tan
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Tan
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Sea
15°
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Sea
15°
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Sea
15°
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Sea
16°
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Sea
16°
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Sea
18°
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Sea
19°
Swim
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Sea
20°
Swim
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Sea
19°
Swim
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Sea
17°
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Sea
16°
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Sea
15°
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The annual average maximum daily temperature is 21.6°C (70.8°F) which is warm and makes sunbathing pleasant on clear days. The annual average water temperature is typically 16.7°C (62.0°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water. Annually there are on average 5.4 days of rain per month and 8.5 hours of sun per day.
The best months to visit San Diego County are June, July, August, September, for the best beach weather, the most sunshine and optimal sunbathing and swimming conditions with the least chance of rain.
The weather is warm enough for sunbathing in the months from June to October when the maximum temperature reaches above 22°C (72°F)
The sea is best for swimming between June and October when the sea temperature is above the average 17°C (62°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water.
No, you can't sunbathe in San Diego County all year round. Some months are too cold for sunbathing, however you might enjoy other beach activities such as taking a walk, going hiking along trails or just enjoying the scenery.
The weather is warm enough for sunbathing in the months from June to October when the maximum temperature reaches above 22°C (72°F)
More info about the annual temperatures and sunshine.
No, you can't swim in San Diego County all year round.
The warmest sea water temperatures in San Diego County are found in August when they peak at 20°C (69°F) and lowest in February when they dip to 15°C (58°F).
The sea temperature is above average for swimming between June and October when the sea temperature is above 17°C (62°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water.
The sea is good for swimming in the months from July to September when the sea temperature is above 19°C (66°F)
More info about the annual sea temperatures
The hottest month in San Diego County is September when the average maximum temperature is very warm and perfect for sunbathing on clear days 26°C (78°F), average temperature is 21°C (70°F) and average minimum temperature is 17°C (62°F).
More info about the annual temperatures and sunshine.
The coolest month in San Diego County is January when the average maximum temperature is 19°C (66°F), average temperature is 13°C (56°F) and average minimum temperature is 8°C (46°F).
More info about the annual temperatures and sunshine
The sunniest days in San Diego County are in July which has the most hours of sunshine per day. In July the sunshine percentage is 77.2% making it sunny and pleasant most of the time. The hours of sunshine per day are 10.2hrs making the days very long and bright.
More info about the annual sunshine.
The driest month in San Diego County is June with 0.1cm (0.0inches) of rain and August has the fewest days of rain with 0.8 days with some rain, an extremely dry time to visit the beach.
More info about the annual rainfall
The coldest sea water temperatures in San Diego County are found in February when they dip to 15°C (58°F) which is cold for swimming, a full wet suit is required to spend any length of time in the sea.
More info about the annual sea temperatures.
The warmest sea water temperatures in San Diego County are found in August when they peak at 20°C (69°F) which is comfortable for swimming though some may prefer warmer water.
More info about the annual sea temperatures.
The most humid month in San Diego County is August with a dew point (an indicator of humidity) of 17°C (63°F) which is OK for most but slightly uncomfortable for some.
More info about the annual humidity.
The least humid month in San Diego County is January with a dew point of 8°C (47°F) which is a bit dry for some.
More info about the annual humidity.
The most windy month in San Diego County is April when the average maximum windspeed is 21KM/H (13MPH) and the average wind speed is 8KM/H (5MPH).
More info about the annual wind conditions.
The hottest month in San Diego County is September when the average maximum temperature is 26°C (78°F), average temperature is 21°C (70°F) and average minimum temperature is 17°C (62°F).
The coolest month in San Diego County is January when the average maximum temperature is 19°C (19°F), average temperature is 13°C (56°F) and average minimum temperature is 8°C (46°F).
The longest days in San Diego County are in June, with an average of 14.3 hours of daylight per day. December has the shortest days with an average of 10 hours of daylight per day.
The sunniest days in San Diego County are in July which has the most hours of sunshine per day. The sunshine percentage is 77.2% making it sunny and pleasant most of the time. The hours of sunshine per day are 10.2hrs making the days very long and bright.
January has the least sunshine. The sunshine percentage is 61.2% making it sunny but overcast at times. The hours of sunshine per day are 7.2hrs making the days quite long and bright.
The ultraviolet index is the highest in July when it reaches 11.9 and lowest in December when it reaches 3.5.
An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.
The warmest sea water temperatures in San Diego County are found in August when they peak at 20°C (69°F) and lowest in February when they dip to 15°C (58°F).
The sea is best for swimming between June and October when the temperature is above 17°C (62°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water.
The wettest month in San Diego County is February with 6.1cm (2.4inches) of rain and the most days of rain with 11.2 days with some rain, a pretty wet time to visit the beach.
The driest month in San Diego County is June with 0.1cm (0.0inches) of rain and August has the fewest days of rain with 0.8 days with some rain, an extremely dry time to visit the beach.
Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.
Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.
