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Sacramento in September: Weather, Average temperature and Climate

Take a look at past year’s weather for Sacramento in September and see if it is worth visiting.
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September

Weather in Sacramento in September 2025

Great Weather
Hot
☀️
Sunny
For those searching for an ideal September holiday with excellent weather, Sacramento is a perfect choice. Average maximum temperatures are +90°F. Expect about 25 sunny days, making it the perfect place to enjoy the sunshine. It's worth noting that there may be some rainfall, with an average of 8 mm of precipitation over 2 rainy days. So, take your sunglasses, a beach towel, and great walking shoes, as it looks like amazing weather. Search flights in one click on Avionero.

Average weather

☀️
+90°F
Avg. max. temperature
+46°F
Min.
+115°F
Max.
8 mm
Total precipitation
55%
Avg. humidity
2 m/s
Avg. wind
25 ☀️
Sunny Days
3 ⛅️
Cloudy
2 🌦
Rainy
Our opinion: Sacramento has great weather in September.
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Average temperature in Sacramento in September

Here are the expected maximum, average and minimum temperatures in Sacramento for September based on the historical data.
Last Year
Historical Data

The temperature in September is +84°F on average, with a range between a maximum of +93°F during the day and a minimum of +55°F at night.

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

Sacramento weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
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 mm8 mm33 mm
Wind
3 m/s2 m/s2 m/s
Humidity
56%55%59%
Air pressure
1011 HPa1011 HPa1014 HPa
Sunny days
282521
Cloudy days
335
Rainy days
025
Snowy days
000

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

Wind speed in Sacramento in September based on historical data.
Last Year
Historical Data

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

Amount of rainfall in mm during September in Sacramento based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in September stands at 7%, leading to total precipitation of around 5 mm. The maximum amount of rainfall per day is around 3 mm, which is considered light rain. Sacramento is amazing in September with as little as 2 rainy days on average, so plan adventures in the great outdoors.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Sacramento wettest month is January, where a typical day has a 39% chance of precipitation and 112 mm of rainfall per day. July, on the other hand, is the driest month with a mere 0% chance of precipitation and 1 mm of rainfall per day.

How was the weather last September in Sacramento?

This is the weather in Sacramento in September 2024:
1 September
☀️
+88°F
2 September
🌧️
+75°F
3 September
☁️
+81°F
4 September
☀️
+85°F
5 September
☀️
+88°F
6 September
☀️
+89°F
7 September
☀️
+89°F
8 September
☀️
+93°F
9 September
☀️
+93°F
10 September
☀️
+91°F
11 September
☀️
+93°F
12 September
☀️
+93°F
13 September
☀️
+93°F
14 September
☀️
+93°F
15 September
☀️
+91°F
16 September
☀️
+89°F
17 September
☀️
+80°F
18 September
☀️
+83°F
19 September
☀️
+83°F
20 September
☀️
+83°F
21 September
☀️
+82°F
22 September
☀️
+80°F
23 September
☀️
+80°F
24 September
☀️
+79°F
25 September
☀️
+78°F
26 September
☀️
+81°F
27 September
☀️
+83°F
28 September
☀️
+84°F
29 September
☀️
+83°F
30 September
🌧️
+71°F
In September 2024 Sacramento had 27 sunny days, 1 cloudy days, and 2 rainy days. The average maximum temperature was +84°F, with an absolute maximum of +93°F and a minimum of +72°F. The average humidity was 60%, with a maximum of 100% and a minimum of 21%. The average wind speed was 4 m/s, with a maximum of 9 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change Over the Years

This is how Sacramento climate has changed over the last 43 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

Frequently asked questions about the weather in Sacramento in September:

Is September a good time to visit Sacramento?

Yes, September is a great time to go to Sacramento, the weather couldn’t be better. Be ready to get outside, explore and enjoy. Check what other months that are a good time to visit Sacramento.

Can you sunbathe in Sacramento in September?

Absolutely, September is hot in Sacramento. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.

Is Sacramento rainy in September?

Sacramento is usually dry in September. Plan your packing around outdoor activities and exploring.

Is it sunny in Sacramento in September?

Yes, Sacramento is sunny in September. Prepare for lots of rays. Don’t forget to pack your sunglasses and sunscreen, and maybe pick up a wide-brimmed hat when you arrive.

Other cities in USA

Check out the weather for 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.