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United States weather

Weather in Santa Cruz, California for September 2026

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

    Temperatures

  • In general, the average temperature in Santa Cruz at the beginning of September is 22 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.9 °F by the end of September.

    • Rain 🌧️

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

    • More

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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
85 %
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
26°
2
Mist
20°
3
Mist
23°
4
Mist
21°
5
Mist
22°
6
Overcast
21°
7
Overcast
21°
8
Overcast
20°
9
Light rain
16°
10
Fog
18°
11
Overcast
17°
12
Mist
20°
13
Mist
20°
14
Overcast
24°
15
Mist
25°
16
Partly cloudy
23°
17
Cloudy
28°
18
Moderate or heavy rain shower
20°
19
Mist
20°
20
Cloudy
22°
21
Mist
24°
22
Patchy rain possible
22°
23
Partly cloudy
26°
24
Overcast
19°
25
Thundery outbreaks possible
19°
26
Mist
21°
27
Mist
15°
28
Fog
16°
29
Overcast
18°
30
Fog
17°

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
 26° /15° 0 mm 7
Sept. 2 Mist
Mist
 20° /13° 0 mm 5
Sept. 3 Mist
Mist
 23° /13° 0 mm 5
Sept. 4 Mist
Mist
 21° /13° 0 mm 5
Sept. 5 Mist
Mist
 22° /14° 0 mm 5
Sept. 6 Overcast
Overcast
 21° /14° 0 mm 5
Sept. 7 Overcast
Overcast
 21° /15° 0 mm 5
Sept. 8 Overcast
Overcast
 20° /13° 0 mm 5
Sept. 9 Light rain
Light rain
 16° /15° 4.7 mm 4
Sept. 10 Fog
Fog
 18° /15° 0 mm 4
Sept. 11 Overcast
Overcast
 17° /15° 0 mm 4
Sept. 12 Mist
Mist
 20° /14° 0 mm 5
Sept. 13 Mist
Mist
 20° /14° 0 mm 5
Sept. 14 Overcast
Overcast
 24° /14° 0 mm 5
Sept. 15 Mist
Mist
 25° /14° 0 mm 6
Sept. 16 Partly cloudy
Partly cloudy
 23° /15° 0 mm 6
Sept. 17 Cloudy
Cloudy
 28° /16° 0 mm 6
Sept. 18 Moderate or heavy rain shower
Moderate or heavy rain shower
 20° /15° 29 mm 5
Sept. 19 Mist
Mist
 20° /15° 0 mm 5
Sept. 20 Cloudy
Cloudy
 22° /14° 0 mm 5
Sept. 21 Mist
Mist
 24° /14° 0 mm 5
Sept. 22 Patchy rain possible
Patchy rain possible
 22° /14° 0 mm 5
Sept. 23 Partly cloudy
Partly cloudy
 26° /16° 0 mm 7
Sept. 24 Overcast
Overcast
 19° /14° 0 mm 4
Sept. 25 Thundery outbreaks possible
Thundery outbreaks possible
 19° /15° 0 mm 4
Sept. 26 Mist
Mist
 21° /14° 0 mm 5
Sept. 27 Mist
Mist
 15° /14° 0 mm 4
Sept. 28 Fog
Fog
 16° /14° 0 mm 4
Sept. 29 Overcast
Overcast
 18° /14° 0 mm 4
Sept. 30 Fog
Fog
 17° /13° 0 mm 4
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 💧

UV exposure in Santa Cruz during September

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

Quick links

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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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