Weather in Sacramento in September 2025
Average weather
Average temperature in Sacramento in September
The expected average maximum temperature in September is +84°F with a maximum of +93°F and a minimum of +55°F.
The average maximum temperature goes down 43% by the end of the month, compared with the beginning of the month, from +88°F to +72°F.
Is Sacramento warm or cold in September?
Sacramento is typically hot in September.
Maximum temperatures go down compared to the previous month from +93°F to +90°F. The minimum temperature also goes down from +61°F to +57°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
September is one of the warmest months in Sacramento, here is the comparison with other months:
Climate in Sacramento in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +93°F | +90°F | +79°F | ||||
| Min. temperature | ||||||
| +52°F | +46°F | +37°F | ||||
| Max. temperature | ||||||
| +109°F | +115°F | +102°F | ||||
| Rainfall | ||||||
| 1 mm | 8 mm | 33 mm | ||||
| Wind | ||||||
| 3 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 56% | 55% | 59% | ||||
| Air pressure | ||||||
| 1011 HPa | 1011 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 28 | 25 | 21 | ||||
| Cloudy days | ||||||
| 3 | 3 | 5 | ||||
| Rainy days | ||||||
| 0 | 2 | 5 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September often has better weather than August. It’s getting colder in September. From +93°F in the day, the average maximum temperature lowers to +90°F. Prepare for more rain. Average rainfall goes from 1 mm to 8 mm. It feels drier, as humidity decreases from 56% to 55%. Winds are calmer in comparison to August, going down from 3 m/s to 2 m/s on average. The days becoming less sunny, going from 28 sunny days in August to 25 in September.
October brings much the same weather, it remains great.
Wind
The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Sacramento is gradually decreasing during September, going from 7 m/s to 5 m/s over the course of the month.
Rain
How was the weather last September in Sacramento?
Climate Change Over the Years
The climate in Sacramento in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1982 (+72°F) and the highest in 2014 (+78°F). The driest year was 2013 with only 192 mm of rainfall, and the wettest year was 1983 with 1202 mm.
FAQ
Is September a good time to visit Sacramento?
Can you sunbathe in Sacramento in September?
Is Sacramento rainy in September?
Is it sunny in Sacramento in September?
Other cities in USA
Monthly weather in Sacramento
Source of the data
For this page, we’ve looked at the typical weather in Sacramento, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.