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Hourly Forecast
Daylight Hours
06:37
Sunrise
18:46
Sunset
Moon
Waxing Crescent
12:08
Moonrise
21:20
Moonset
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Weather in El Cajon today, September 16, 2026
Cloud cover dominates in El Cajon on September 16, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. Expect a grey start, with morning cloud around 100% by 08:00. Outdoor plans early on should not rely on bright skies.
Temperatures climb from an overnight low near 19°C toward a daytime high of about 24°C. Relative humidity sits between 60% and 86%, reaching its peak around 06:00. Expect gentle winds, highest near 13:00 at 4.4 km/h.
Through the afternoon cloud remains the main feature, with cover near 63% around 13:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 15.9 km, briefly nearer 15.1 km. The sun rises at 06:37 and sets at 18:46, for a total of 12 hours 9 minutes of sunlight today.
Overall, El Cajon on September 16, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 24°C.
Frequently asked questions about weather in El Cajon
How warm does it get in El Cajon?
The warmest month in El Cajon is August, with average high temperatures of 28°C. The average temperature during this period is around 23°C.
How cold does it get in El Cajon?
The coldest month in El Cajon is January, with average low temperatures of 9°C. The average temperature during this period is around 13°C.
What is the wettest time of year in El Cajon?
The wettest month in El Cajon is March, with an average of 67mm of precipitation.
What is the driest time of year in El Cajon?
The driest month in El Cajon is June, with an average of 2mm of precipitation.
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