Weather in Oceanside, United States in September

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Visiting Oceanside, United States in September

September is one of the best months to visit Oceanside for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

September has average maximum temperatures of 26°C (78°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 71% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.8hrs making the days long and bright. September has total rainfall of 0.7cm (0.3inches) making it extremely dry with only very rare light showers. There are just 1.9 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days and rainy days are few and far between. Sea temperatures are a cool 19°C (67°F). September is a slightly chilly month for swimming in Oceanside.

Also consider visiting Oceanside in one of the other best months of June, July, August, for the best beach weather.

Also consider one of our other suggestions for September.

Can you sunbathe in Oceanside in September?

Yes, September is a great time for sunbathing in Oceanside.

September has average maximum temperatures of 26°C (78°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 71% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.8hrs making the days long and bright. September has total rainfall of 0.7cm (0.3inches) making it extremely dry with only very rare light showers. There are just 1.9 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days and rainy days are few and far between.

More about September temperature and sunshine.

Can you swim in Oceanside in September?

Yes, September is a a slightly chilly month for swimming in Oceanside with cool sea temperatures 19°C (67°F).

More about September sea temperatures.

Is September a good time to holiday in Oceanside?

Yes, September is a great time for a holiday in Oceanside.

September has average maximum temperatures of 26°C (78°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 71% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.8hrs making the days long and bright. September has total rainfall of 0.7cm (0.3inches) making it extremely dry with only very rare light showers. There are just 1.9 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days and rainy days are few and far between. Sea temperatures are a cool 19°C (67°F). September is a slightly chilly month for swimming in Oceanside.

More about the September temperatures and sunshine.

Is Oceanside warm in September?

Yes, Oceanside is very warm and perfect for sunbathing on clear days in September.

The average maximum temperature in Oceanside in September is 26°C (78°F). The average maximum temperature is 25°C (78°) in the previous month and 24°C (75°F) in the next month.

The average temperature in Oceanside in September is 20°C (69°F). The average temperature is 21°C (70°F) in the previous month and 18°C (64°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is Oceanside in September?

The average day light hours per day in Oceanside in September are 12.4. The sunshine percentage is 71% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.8hrs making the days long and bright.

More about September sunshine.

Temperature in Oceanside in September

The average maximum temperature in Oceanside in September is 26°C (78°F). The average maximum temperature is 25°C (78°F) in the previous month and 24°C (75°F) in the next month.

The average temperature in Oceanside in September is 20°C (69°F). The average temperature is 21°C (70°F) in the previous month and 18°C (64°F) in the next month.

The average minimum temperature in Oceanside in September is 15°C (59°F). The minimum temperature is 17°C (63°F) in the previous month and 11°C (52°F) in the next month.

Sunshine in Oceanside in September

During September the average day light hours are 12.4 per day in Oceanside. The sunshine percentage is 71% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.8hrs making the days long and bright.

The ultraviolet index in Oceanside in September is typically 9.2 during September. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. 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.

Sea Temperature in Oceanside in September

The average sea water temperature in Oceanside in September is 19.4°C (66.9°F) which is comfortable for swimming though some may prefer warmer water.

Rainfall in Oceanside in September

The average total rainfall in Oceanside in September is 0.7cm (0.3inches) and on average there are 1.9 rainy days in September making it an extremely dry time to visit the beach.

Humidity in Oceanside in September

The maximum dew point (an indicator of humidity) in Oceanside in September is 17°C (63°F) which is OK for most but slightly uncomfortable for some. The dew point is 17°C (63°F) in the previous month and 15°C (15°F) in the next month.

The average maximum relative humidity in Oceanside in September is typically 91.5%. The maximum relative humidity is 90.1% in the previous month and 91.6% in the next month.

The average relative humidity in Oceanside in September is typically 74.6%. The average relative humidity is 75.6% in the previous month and 71.8% in the next month.

Wind Speed in Oceanside in September

The average maximum wind speed in Oceanside in September is typically 22KM/H (13MPH). The average maximum wind speed is 22KM/H (14MPH) in the previous month and 22KM/H (13MPH) in the next month.

The average wind speed in Oceanside in September is typically 6KM/H (4MPH). The average wind speed is 6KM/H (4MPH) in the previous month and 6KM/H (3MPH) in the next month.

The average wind direction in Oceanside in September is from the West-Southwest.

Monthly Averages

Suggested Beaches in September

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