Half Moon Bay Weather in August
Half Moon Bay in August sees pleasant temperatures, with highs around 22°C (72°F) and overnight lows of 12°C (54°F). With just 3.6 mm (0.1 in) of rainfall on average, rain is rarely an issue.
Rainfall in Half Moon Bay in August
Historically, August sees about 5 days of rain, with a monthly average of 3.6 mm (0.1 in). Rain is scarce this month and when it does fall, it tends to be light. Unlikely to disrupt plans significantly.
Temperature in Half Moon Bay in August
August in Half Moon Bay is generally perfect, with days reaching 22°C (72°F) and nights settling around 12°C (54°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows of 12°C (54°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Half Moon Bay in August
With approximately 288 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.
Wind Speed in Half Moon Bay in August
August sees wind speeds averaging 6 m/s (12 knots). You'll experience strong winds that cause whole trees to sway and require effort when walking against them. As an average, expect variation from moderate breezes to particularly windy days that affect daily routines.
Average water temperature in August
At 14°C (57°F), the water is cool but manageable for those who don't mind a bit of a shock getting in. Most people adjust after a few minutes.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August, September and October typically offer the best weather for Half Moon Bay.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Half Moon Bay's climate page.
Half Moon Bay Temperature in August
Min Temperature
12°C (54°F)
Max Temperature
22°C (72°F)
Water Temperature
14°C (57°F) *
Chance of Rain
16%
Precipitation
3.6 mm (0.1 in)
Rainy days
5 days
Humidity
75% *
Windspeed
6 m/s (12 knots) *
Sunshine
288 hours *
Percentage Sunshine
68% *
Best Places in the United States of America in August
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in August →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Half Moon Bay in August
Pleasant temperatures in August mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. With minimal rainfall expected, you can leave the rain gear at home. The water temperature sits at about 14°C (57°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Half Moon Bay in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Half Moon Bay's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Half Moon Bay climate overview or explore weather in the United States of America.
