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Weather in Santa Cruz, California for September 2026

Your guide to Santa Cruz weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Small Craft Advisory - See hour by hour.

    • Temperatures

  • So far, September 2026 in Santa Cruz is slightly warmer than the historical average by 1.7 °F.

  • The forecast for the upcoming days in Santa Cruz predicts a temperature of 25.8 °F, which is slightly above the historical average.

  • In general, the average temperature in Santa Cruz at the beginning of September is 23.7 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 25.4 °F by the end of September.

    • Rain 🌧️

  • With an average of 2 rainy days, Santa Cruz experiences minimal rainfall in September.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
28
Dry days
Average rainy days
2
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/14°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
84 %
Avg humidity

Santa Cruz Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Partly cloudy
24°
2
Mist
21°
3
Mist
23°
4
Mist
23°
5
Mist
25°
6
Overcast
25°
7
Overcast
25°
8
Overcast
25°
9
Light rain
26°
10
Fog
26°
11
Overcast
21°
12
Mist
24°
13
Mist
22°
14
Overcast
25°
15
Mist
23°
16
Partly cloudy
22°
17
Cloudy
24°
18
Moderate or heavy rain shower
23°
19
Mist
21°
20
Cloudy
21°
21
Weather Alert Sunny
20°
22
Sunny
21°
23
Sunny
25°
24
Sunny
26°
25
Sunny
26°
26
Sunny
23°
27
Sunny
24°
28
Sunny
25°
29
Sunny
27°
30
Sunny
27°

Temperatures trend during September in Santa Cruz

See the weather trend as well as the moving average line

September weather in Santa Cruz day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Partly cloudy
Partly cloudy
 24° /13° 2.2 mm 5
Sept. 2 Mist
Mist
 21° /13° 0 mm 7
Sept. 3 Mist
Mist
 23° /12° 0 mm 7
Sept. 4 Mist
Mist
 23° /13° 0.1 mm 7
Sept. 5 Mist
Mist
 25° /13° 0 mm 7
Sept. 6 Overcast
Overcast
 25° /12° 0 mm 7
Sept. 7 Overcast
Overcast
 25° /13° 0 mm 7
Sept. 8 Overcast
Overcast
 25° /12° 0 mm 5
Sept. 9 Light rain
Light rain
 26° /16° 2.3 mm 3
Sept. 10 Fog
Fog
 26° /17° 0 mm 7
Sept. 11 Overcast
Overcast
 21° /15° 0 mm 6
Sept. 12 Mist
Mist
 24° /13° 0 mm 7
Sept. 13 Mist
Mist
 22° /13° 0 mm 7
Sept. 14 Overcast
Overcast
 25° /13° 0 mm 7
Sept. 15 Mist
Mist
 23° /13° 0 mm 7
Sept. 16 Partly cloudy
Partly cloudy
 22° /13° 0.1 mm 7
Sept. 17 Cloudy
Cloudy
 24° /14° 0 mm 7
Sept. 18 Moderate or heavy rain shower
Moderate or heavy rain shower
 23° /13° 14.5 mm 6
Sept. 19 Mist
Mist
 21° /13° 0 mm 6
Sept. 20 Cloudy
Cloudy
 21° /13° 0 mm 4
Sept. 21 Sunny
Sunny
 20° /12° 0 mm 6.8
Sept. 22 Sunny
Sunny
 21° /12° 0 mm 6.8
Sept. 23 Sunny
Sunny
 25° /13° 0.1 mm 6.9
Sept. 24 Sunny
Sunny
 26° /15° 0 mm 6.6
Sept. 25 Sunny
Sunny
 26° /14° 0 mm 6.5
Sept. 26 Sunny
Sunny
 23° /13° 0 mm 5
Sept. 27 Sunny
Sunny
 24° /12° 0 mm 6
Sept. 28 Sunny
Sunny
 25° /13° 0 mm 7
Sept. 29 Sunny
Sunny
 27° /14° 0 mm 7
Sept. 30 Sunny
Sunny
 27° /14° 0 mm 7
Next
Important Notice
Our weather forecast for Santa Cruz in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Santa Cruz forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Santa Cruz in September - FAQ

What are the expected maximum and minimum temperatures in Santa Cruz during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Santa Cruz during September?
In September, Santa Cruz can expect light to moderate rainfall, totaling 33.7 mm across approximately 2 days. Occasional showers are possible, and planning ahead for them could be helpful.

What are the typical wind conditions in Santa Cruz during September?
The average wind speed in Santa Cruz during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Santa Cruz

Explore the daily rainfall trends and prepare for Santa Cruzs September weather 💧
Typically, Santa Cruz has 2 rainy days in September with a total of 33.7 mm of rainfall.

UV exposure in Santa Cruz during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Santa Cruz?

Get accurate weather forecasts for Santa Cruz, located at latitude 36.974 and longitude -122.031. Stay updated with localized weather information tailored for Santa Cruz.

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