See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
21°
Overcast
Feels Like: 26°
Min: 20°
Max: 22°
The next few hours will be overcast, with tomorrow reaching 26°C and dropping to 25°C. The coming days will be mostly clear
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:37
Sunrise
18:48
Sunset
Moon
Waxing Crescent
11:09
Moonrise
20:45
Moonset
Daily Forecast
Tuesday
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
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UV Index
Humidity
Weather in Imperial Beach tomorrow, September 16, 2026
Imperial Beach stays under cloudy skies on September 16, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open. Expect a grey start, with morning cloud around 100% by 00:00. Outdoor plans early on should not rely on bright skies.
Expect highs of 27°C and cooler readings close to 20°C. Relative humidity sits between 67% and 86%, reaching its peak around 07:00. Expect gentle winds, highest near 16:00 at 7.1 km/h.
Expect persistent cloud later on, with amounts around 100% by 12:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 16.0 km on average, though it can drop toward 15.1 km in thicker cloud or showers. Sunrise is at 06:37 and sunset at 18:47, giving 12 hours 9 minutes of sunlight today.
The practical takeaway for Imperial Beach on September 16, 2026 is a cloudy day that stays usable, just not particularly bright, around 27°C.
Frequently asked questions about weather in Imperial Beach
How warm does it get in Imperial Beach?
The warmest month in Imperial Beach is August, with average high temperatures of 24°C. The average temperature during this period is around 21°C.
How cold does it get in Imperial Beach?
The coldest month in Imperial Beach is February, with average low temperatures of 11°C. The average temperature during this period is around 13°C.
What is the wettest time of year in Imperial Beach?
The wettest month in Imperial Beach is March, with an average of 74mm of precipitation.
What is the driest time of year in Imperial Beach?
The driest month in Imperial Beach is July, with an average of 3mm of precipitation.
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