Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Huntington Beach's warmest period falls in August and September, when the average high-temperatures ascend to 75°F (23.9°C).Humidity
In September, the average relative humidity is 69%.Rainfall
In Huntington Beach, in September, it is raining for 4.3 days, with typically 0.31" (8mm) of accumulated precipitation. In Huntington Beach, during the entire year, the rain falls for 62.4 days and collects up to 8.94" (227mm) of precipitation.Ocean temperature
In Huntington Beach, the average seawater temperature in September is 66.7°F (19.3°C).Note: Swimming is not a pleasurable activity for the majority in water at 66.7°F (19.3°C). Breathing control gets harder as the water temperature dips from 69.8°F (21°C) to 59°F (15°C).
Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:16 pm. On the last day of September, sunrise is at 6:46 am and sunset at 6:37 pm PDT.
Sunshine
In September, the average sunshine is 10.5h.UV index
July through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest?
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
What is the ocean temperature in September?
How many hours of daylight does Huntington Beach have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the highest UV index?
What is the UV index intensity in September?
Average temperature in September
Huntington Beach, CA
- Average high temperature in September: 75°F
The warmest months (with the highest average high temperature) are August and September (75°F).
The month with the lowest average high temperature is December (62.2°F).
- Average low temperature in September: 64.8°F
The months with the highest average low temperature are August and September (64.8°F).
The coldest month (with the lowest average low temperature) is February (53.2°F).
Average pressure in September
Huntington Beach, CA
- Average pressure in September: 29.89"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).
Average wind speed in September
Huntington Beach, CA
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is October (5.5mph).
Average humidity in September
Huntington Beach, CA
- Average humidity in September: 69%
The month with the highest relative humidity is June (76%).
The month with the lowest relative humidity is November (60%).
Average rainfall in September
Huntington Beach, CA
- Average rainfall in September: 0.31"
The wettest month (with the highest rainfall) is December (1.85").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in September
Huntington Beach, CA
- Average rainfall days in September: 4.3 days
The month with the highest number of rainy days is March (7.9 days).
The month with the least rainy days is June (3.1 days).
Average sea temperature in September
Huntington Beach, CA
- Average sea temperature in September: 66.8°F
The best months for swimming (with the highest average sea temperature) are July and August (67.7°F).
The coldest month (with the lowest average sea temperature) is January (58.5°F).
Average daylight in September /
Average sunshine in September
Huntington Beach, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 10h and 3min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in September
Huntington Beach, CA
- Average sunshine days in September: 23 days
The month with the most sunshine days is August (25 days).
The month with the least sunshine days is February (19.5 days).
Average UV index in September
Huntington Beach, CA
- Average UV index in September: 6
The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are February, March, November and December (UV index 4).
Average cloud cover in September
Huntington Beach, CA
- Average cloud cover in September: 12
The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in September
Huntington Beach, CA
- Average visibility in September: 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).
Huntington Beach, California, USA
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