Weather in Half Moon Bay, United States in August

So you're interested in going to Half Moon Bay, United States in August

August is a cold and very dry time for sunbathing in Half Moon Bay and not really recommended. August is a good month for swimming in Half Moon Bay with warm sea temperatures. Consider visiting Half Moon Bay in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for August.

Temperature in Half Moon Bay in August

The average maximum temperature in Half Moon Bay in August is 17°. The average maximum temperature is 16° in the previous month and 18° in the next month.

The average temperature in Half Moon Bay in August is 14°. The average temperature ranges is 14° in the previous month and 14° in the next month.

The average minimum temperature in Half Moon Bay in August is 12°. The minimum temperature is 12° in the previous month and 11° in the next month.

Sunshine in Half Moon Bay in August

The average day light hours per day in Half Moon Bay in August are 13.6 and there are 9.5 hours of sunshine per day on average during August making it a sunny month with few clouds.

The ultraviolet index in Half Moon Bay in August is typically 9.9 during August. 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 Half Moon Bay in August

The average sea water temperature in Half Moon Bay in August is 24.2° which is warm and pleasant for relaxing and swimming for long periods.

Rainfall in Half Moon Bay in August

The average total rainfall in Half Moon Bay in August is 0.1cm and on average there are 4.2 rainy days in August making it a very dry time to visit the beach.

Humidity in Half Moon Bay in August

The maximum dew point (an indicator of humidity) in Half Moon Bay in August is 14° which is comfortable for everyone. The dew point is 14° in the previous month and 14° in the next month.

The average maximum relative humidity in Half Moon Bay in August is typically 99%. The maximum relative humidity is 98.8% in the previous month and 98.6% in the next month.

The average relative humidity in Half Moon Bay in August is typically 92.3%. The average relative humidity is 91.5% in the previous month and 90.4% in the next month.

Wind Speed in Half Moon Bay in August

The average maximum wind speed in Half Moon Bay in August is typically 20kmh. The average maximum wind speed is 19kmh in the previous month and 22kmh in the next month.

The average wind speed in Half Moon Bay in August is typically 9kmh. The average wind speed is 10kmh in the previous month and 9kmh in the next month.

The average wind direction in Half Moon Bay in August is from the West.

Monthly Averages

Suggested Beaches in August

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