Monthly climate guide
Sacramento weather in September
With highs near 33°C (92°F) and lows around 15°C (60°F), September feels very hot in Sacramento. Rainfall averages about 5 mm (very dry) and the sky is mostly sunny. Daytime highs are 3°C cooler than August and 6°C warmer than October.
What stands out in September
- Afternoons and nights feel like different seasons, roughly 18°C apart.
- Only 2 months are warmer in Sacramento than September.
- Rain is well below Sacramento's usual level (around 90% less).
- It cools down fast from here: October is about 6°C cooler.
Avg high
33°C
92°F
Avg low
15°C
60°F
Rainfall
5 mm
very dry
Humidity
43%
relative
Sky
19%
cloud · mostly sunny
Sacramento weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 15°C / 58°F | 6°C / 42°F | 99 mm | 74% | 58% |
| February | 16°C / 61°F | 5°C / 42°F | 98 mm | 73% | 47% |
| March | 18°C / 64°F | 7°C / 44°F | 114 mm | 76% | 53% |
| April | 22°C / 71°F | 8°C / 47°F | 51 mm | 71% | 41% |
| May | 26°C / 78°F | 11°C / 51°F | 23 mm | 62% | 32% |
| June | 33°C / 91°F | 14°C / 57°F | 7 mm | 49% | 18% |
| July | 37°C / 98°F | 16°C / 61°F | 0 mm | 40% | 12% |
| August | 36°C / 97°F | 16°C / 61°F | 0 mm | 42% | 15% |
| September | 33°C / 92°F | 15°C / 60°F | 5 mm | 43% | 19% |
| October | 27°C / 81°F | 13°C / 55°F | 29 mm | 45% | 29% |
| November | 19°C / 67°F | 8°C / 47°F | 65 mm | 58% | 46% |
| December | 15°C / 58°F | 5°C / 41°F | 92 mm | 69% | 53% |
What to pack for September
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- An extra layer — evenings are noticeably cooler than afternoons
- Sunglasses
Is September a good time to visit Sacramento?
Compare the months in the chart above to find your ideal window.
Best time to visit Sacramento →Other United States cities in September
Cite or embed this data
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Sacramento weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/sacramento/september
<a href="https://weathercompare.eu/weather/usa/sacramento/september">Sacramento weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/usa/sacramento" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Sacramento weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/usa/sacramento/september">Sacramento weather in September</a> – WeatherCompare</p>
Sacramento in September: quick answers
Is September a good time to visit Sacramento?
It can be, if you like heat: September highs in Sacramento are around 33°C. Good for the beach; plan sightseeing for early morning and evening.
How warm is Sacramento in September?
Average highs are about 33°C (92°F) and average lows about 15°C (60°F), based on 10 years of daily data.
Does it rain a lot in Sacramento in September?
Sacramento typically gets around 5 mm of rain in September — very dry.
Figures are long-term averages for the area around Sacramento (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.