Huntington Beach
California, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Huntington Beach, CA

Breathtaking dusk views of this beautiful Huntington Beach, California, with a view of the iconic pier and houses
Breathtaking dusk views of this beautiful Huntington Beach, California, with a view of the iconic pier and houses
September, the first month of the autumn, in Huntington Beach, is still a pleasant month, with average temperature ranging between max 72°F (22.2°C) and min 64°F (17.8°C).

Temperature

August and September, with an average high-temperature of 72°F (22.2°C), are the warmest months.

Rainfall

January through June, September through December are months with rainfall in Huntington Beach. September is the first month it rains. Throughout September, in the average 1 rainfall days, it receives 0.2" (5.1mm) of precipitation. Throughout the year, in Huntington Beach, there are 33 rainfall days, and 10.8" (274.3mm) of precipitation is accumulated.

Ocean temperature

In September, the average ocean temperature is 66.7°F (19.3°C).
Note: For swimming, a surface water temperature of 66.7°F (19.3°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

In September, the average length of the day in Huntington Beach is 12.4h.

Sunshine

In September, the average sunshine in Huntington Beach, California, is 9h.

UV index

In September, the average daily maximum UV index in Huntington Beach is 8. A UV Index reading of 8 to 10 represents a very high health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 8 translate into the following recommendations:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What are the warmest months in Huntington Beach?

Warmest months in Huntington Beach are August and September, with an average high-temperature of 72°F (22.2°C).

What is the temperature in September in Huntington Beach?

In Huntington Beach, in September, the average high-temperature is 72°F (22.2°C), and the average low-temperature is 64°F (17.8°C).

When does it start raining in Huntington Beach?

September is the first month it rains in Huntington Beach. Throughout September, in the average 1 rainfall days, it receives 0.2" (5.1mm) of precipitation.

What is the ocean temperature in September in Huntington Beach?

In Huntington Beach, the average seawater temperature in September is 66.7°F (19.3°C). For swimming, a surface water temperature of 66.7°F (19.3°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

How many hours of daylight does Huntington Beach have in September?

The average length of the day in September is 12.4h.

How long on average sun shines in September in Huntington Beach?

In Huntington Beach, the average sunshine in September is 9h.

What is the UV index reading in September in Huntington Beach?

The average daily maximum UV index in September is 8. A UV Index of 8 to 10 symbolizes a very high health threat from the exposure to the Sun's UV rays.
Average temperature in September - Huntington Beach, CA
  • Average high temperature in September: 72°F

Warmest months (with the highest average high temperature) are August and September (72°F).
Months with the lowest average high temperature are January, February, March and December (63°F).

  • Average low temperature in September: 64°F

The month with the highest average low temperature is August (65°F).
The coldest month (with the lowest average low temperature) is December (49°F).

Average rainfall in September - Huntington Beach, CA
  • Average rainfall in September: 0.2"

The wettest month (with the highest rainfall) is February (2.7").
Driest months (with the lowest rainfall) are July and August (0").

Average rainfall days in September - Huntington Beach, CA
  • Average rainfall days in September: 1 days

The month with the highest number of rainy days is March (6 days).
Months with the lowest number of rainy days are June and July (0 days).

Average sea temperature in September - Huntington Beach, CA
  • Average sea temperature in September: 66.8°F

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: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 10h).

  • Average sunshine in September: 9h

Months with most sunshine are July and August (Average sunshine: 11h).
Months with least sunshine are January, November and December (Average sunshine: 7).

Average UV index in September - Huntington Beach, CA
  • Average UV index in September: 8

Months with the highest UV index are June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 3).