Sacramento, California weather in September

Averages from 2021–2025 (150 days of record).

Average high: 91°F
Average low: 61°F
Rainy days: ~2 per month
Total precipitation: 0.6 in
Warmest recorded: 117°F
Coldest recorded: 51°F

Expect September days in Sacramento, California to top out around 91°F and cool to about 61°F overnight, with roughly 2 days of measurable rain across the month. In recent years September has ranged from 51°F to 117°F.

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Current Sacramento, California forecast → · Historical data by Open-Meteo (ERA5).