San Marcos Weather Conditions
Current Temperature Level
24 °C
33 AQI
Air quality index is: Good
Last Updated: 2025-09-30 03:15 (Local Time)
MapSan Marcos
San Marcos Weather Parameters
4 km/h
1 m/s
129° SE
0 %
16 km
0 mm
1018 mb
UV Index0
Suggestions for
TodaySan Marcos30 Sep.
Heat Stroke• Avoid Outdoor 
Clothing• Breathable
Driving• Enjoy Driving
Sunscreen• ApplyTrending in United States
Air Quality Monitoring for Logistics: Smarter Deliveries with Data
San Marcos 10-Days Weather Forecast
Today
28°C
38 %Wednesday
29°C41 %Thursday
29°C42 %Friday
27°C49 %Saturday
24°C65 %Sunday
26°C61 %Monday
27°C64 %Tuesday
26°C70 %Wednesday
27°C64 %Thursday
26°C65 %Sunny
Clear Sky with temperature at 28 °C and humidity will be at 38% with 11.9 km/h winds.37°C / 19°C
Humi.38 %
Prec.0 mm
Sunrise
07:25 AM11hrs 53min
Sunset
07:18 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Clear
25 °C
33 %
0
8.6 kmph / NNE
Clear 
Feels 24.9 °C
Cover 0 %
Visibility 10 km
1 AM
Clear
24 °C
34 %
0
5.4 kmph / ENE
Clear Feels 24.6 °C
Cover 0 %
Visibility 10 km
2 AM
Clear
23 °C
37 %
0
4.7 kmph / SE
Clear Feels 24.4 °C
Cover 0 %
Visibility 10 km
3 AM
Clear
24 °C
48 %
0
3.6 kmph / SE
Clear Feels 24.2 °C
Cover 0 %
Visibility 16 km
4 AM
Clear
22 °C
42 %
0
2.9 kmph / NW
Clear Feels 21.5 °C
Cover 0 %
Visibility 10 km
5 AM
Clear
21 °C
49 %
0
6.8 kmph / NW
Clear Feels 20.8 °C
Cover 0 %
Visibility 10 km
6 AM
Clear
20 °C
54 %
0
7.9 kmph / NW
Clear Feels 20 °C
Cover 0 %
Visibility 10 km
7 AM
Clear
20 °C
58 %
0
8.3 kmph / NNW
Clear Feels 19.7 °C
Cover 0 %
Visibility 10 km
8 AM
Sunny
22 °C
60 %
0
9 kmph / NNW
SunnyFeels 21.6 °C
Cover 0 %
Visibility 10 km
9 AM
Sunny
25 °C
49 %
0.7
10.4 kmph / NNW
SunnyFeels 24.9 °C
Cover 0 %
Visibility 10 km
10 AM
Sunny
29 °C
37 %
2.1
11.2 kmph / N
SunnyFeels 29.1 °C
Cover 0 %
Visibility 10 km
11 AM
Sunny
32 °C
32 %
4.1
11.5 kmph / NNE
SunnyFeels 31.8 °C
Cover 0 %
Visibility 10 km
12 PM
Sunny
34 °C
29 %
6.3
10.4 kmph / NE
SunnyFeels 33.5 °C
Cover 0 %
Visibility 10 km
1 PM
Sunny
35 °C
28 %
7.7
8.6 kmph / NE
SunnyFeels 35.4 °C
Cover 0 %
Visibility 10 km
2 PM
Sunny
36 °C
27 %
7.9
8.6 kmph / NE
SunnyFeels 36.5 °C
Cover 0 %
Visibility 10 km
3 PM
Sunny
36 °C
26 %
6.7
10.1 kmph / NE
SunnyFeels 36.6 °C
Cover 0 %
Visibility 10 km
4 PM
Sunny
36 °C
26 %
4.5
10.8 kmph / NE
SunnyFeels 35.9 °C
Cover 0 %
Visibility 10 km
5 PM
Sunny
35 °C
26 %
2.3
11.2 kmph / NNE
SunnyFeels 34.7 °C
Cover 0 %
Visibility 10 km
6 PM
Sunny
33 °C
27 %
0.8
11.5 kmph / NNE
SunnyFeels 32.4 °C
Cover 0 %
Visibility 10 km
7 PM
Sunny
31 °C
32 %
0
11.5 kmph / NNE
SunnyFeels 30 °C
Cover 0 %
Visibility 10 km
8 PM
Clear
29 °C
36 %
0
11.5 kmph / N
Clear Feels 28.4 °C
Cover 0 %
Visibility 10 km
9 PM
Clear
27 °C
39 %
0
11.9 kmph / NNE
Clear Feels 27.3 °C
Cover 0 %
Visibility 10 km
10 PM
Clear
26 °C
41 %
0
11.5 kmph / NNE
Clear Feels 26.5 °C
Cover 0 %
Visibility 10 km
11 PM
Clear
25 °C
44 %
0
9.7 kmph / NE
Clear Feels 25.9 °C
Cover 5 %
Visibility 10 km
Today
28°C38 %Wednesday
29°C41 %Thursday
29°C42 %Friday
27°C49 %Saturday
24°C65 %Sunday
26°C61 %Monday
27°C64 %Tuesday
26°C70 %Wednesday
27°C64 %Thursday
26°C65 %Temp22 °C
ConditionClear
Humidity42 %
Feels21.5 °C
Cover0 %
Visibility10 km
Wind Speed & Dir.2.9 kmph / NW
UV0
San Marcos 30-Days (September 2025) Weather Forecast
Sun.
Mon.
Tue.
Wed.
Thu.
Fri.
Sat.
1Mon.
33°23 °C
2Tue.
39°24 °C
3Wed.
36°23 °C
4Thu.
42°19 °C
5Fri.
40°25 °C
6Sat.
33°24 °C
7Sun.
27°22 °C
8Mon.
34°22 °C
9Tue.
35°17 °C
10Wed.
37°19 °C
11Thu.
37°20 °C
12Fri.
38°22 °C
13Sat.
37°21 °C
14Sun.
38°21 °C
15Mon.
38°22 °C
16Tue.
37°21 °C
17Wed.
37°21 °C
18Thu.
37°22 °C
19Fri.
37°23 °C
20Sat.
37°22 °C
21Sun.
38°24 °C
22Mon.
38°25 °C
23Tue.
38°26 °C
24Wed.
35°26 °C
25Thu.
34°22 °C
26Fri.
36°18 °C
27Sat.
36°17 °C
28Sun.
35°17 °C
29Mon.
34°17 °C
30Today
36°22 °C
SeptemberWeather Overview
No. of days:
Sunny
19
Cloudy
6
Rainy
3
Snowy
0
The monthly weather averages in San Marcos consist of 19 sunny days, 6 cloudy days, 3 rainy days, and 0 snowy days.
San Marcos's Locations Weather Conditions
United States's Hottest Cities - September 2025
1.
Park Village, United States
Clear
27%
0
18.4 kmph / SSE
2.
Tamuning, United States
Partly cloudy
84%
0
6.1 kmph / ESE
3.
Indio, United States
Clear
43%
0
12.6 kmph / NW
4.
Chiriaco Summit, United States
Clear
43%
0
10.8 kmph / S
5.
North Shore, United States
Clear
43%
0
10.1 kmph / WNW
6.
Mecca, United States
Clear
43%
0
10.1 kmph / WNW
7.
Pearl City, United States
Patchy rain nearby
62%
0
18.7 kmph / ENE
8.
Honolulu, United States
Patchy rain nearby
62%
0
25.2 kmph / ENE
9.
Tempe, United States
Clear
58%
0
4.7 kmph / N
10.
Salton City, United States
Clear
44%
0
15.8 kmph / W
Last Updated: 30 Sept 2025, 08:23 AM
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