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Hourly Forecast
Daylight Hours
06:40
Sunrise
18:52
Sunset
Moon
Waxing Crescent
11:16
Moonrise
20:47
Moonset
Daily Forecast
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Weather in Seal Beach today, September 15, 2026
Seal Beach stays under cloudy skies on September 15, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open. The first half of the day looks overcast, as cloud amounts reach about 100% around 08:00. Brighter weather, if it comes, waits until later.
Expect highs of 22°C and cooler readings close to 19°C. Moisture in the air spans 74%-93%, with the highest values around 12:00. A lighter breeze peaks around 10:00 near 5.6 km/h.
Through the afternoon cloud remains the main feature, with cover near 100% around 12:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 15.1 km, briefly nearer 12.8 km. The sun rises at 06:40 and sets at 18:52, for a total of 12 hours 11 minutes of sunlight today.
In short, cloud leads the story in Seal Beach on September 15, 2026; expect limited sun and a peak around 22°C.
Frequently asked questions about weather in Seal Beach
How warm does it get in Seal Beach?
The warmest month in Seal Beach is August, with average high temperatures of 27°C. The average temperature during this period is around 23°C.
How cold does it get in Seal Beach?
The coldest month in Seal Beach is January, with average low temperatures of 10°C. The average temperature during this period is around 14°C.
What is the wettest time of year in Seal Beach?
The wettest month in Seal Beach is January, with an average of 74mm of precipitation.
What is the driest time of year in Seal Beach?
The driest month in Seal Beach is July, with an average of 1mm of precipitation.
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