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Sea Temperature in San Clemente in September
Complete information on the sea temperature range in the Pacific Ocean in San Clemente in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in San Clemente. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in San Clemente in September
17°C
MINIMUN
21°C
AVERAGE
25°C
MAXIMUM
Historical Data of Water Temperature in September in San Clemente
Water Temperature Chart for Pacific Ocean in San Clemente in September
Sea Temperature Table in San Clemente in September Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Sep 1 | 21°C | 20°C | 17°C | 19.8°C |
| Sep 2 | 20°C | 21°C | 19°C | 20.5°C |
| Sep 3 | 20°C | 21°C | 18°C | 20.0°C |
| Sep 4 | 20°C | 20°C | 20°C | 20.5°C |
| Sep 5 | 20°C | 20°C | 21°C | 20.8°C |
| Sep 6 | 20°C | 21°C | 21°C | 21.0°C |
| Sep 7 | 20°C | 21°C | 21°C | 21.0°C |
| Sep 8 | 20°C | 21°C | 17°C | 20.0°C |
| Sep 9 | 20°C | 22°C | 20°C | 21.0°C |
| Sep 10 | 20°C | 21°C | 20°C | 20.8°C |
| Sep 11 | 21°C | 22°C | 20°C | 21.3°C |
| Sep 12 | 20°C | 21°C | 19°C | 20.5°C |
| Sep 13 | 19°C | 21°C | 19°C | 20.0°C |
| Sep 14 | 20°C | 21°C | 18°C | 20.0°C |
| Sep 15 | 20°C | 21°C | 18°C | 20.3°C |
| Sep 16 | 19°C | 21°C | 17°C | 19.5°C |
| Sep 17 | 19°C | 20°C | 19°C | 20.0°C |
| Sep 18 | 20°C | 21°C | 18°C | 20.0°C |
| Sep 19 | 19°C | 21°C | 19°C | 20.0°C |
| Sep 20 | 20°C | 22°C | 18°C | 20.3°C |
| Sep 21 | 19°C | 21°C | 19°C | 20.0°C |
| Sep 22 | 20°C | 22°C | 19°C | 20.3°C |
| Sep 23 | 20°C | 21°C | 21°C | 20.5°C |
| Sep 24 | 19°C | 21°C | 19°C | 19.5°C |
| Sep 25 | 19°C | 21°C | 19°C | 19.5°C |
| Sep 26 | 18°C | 20°C | 21°C | 19.5°C |
| Sep 27 | 19°C | 22°C | 19°C | 19.3°C |
| Sep 28 | 20°C | 21°C | 21°C | 20.0°C |
| Sep 29 | 20°C | 21°C | 17°C | 18.5°C |
San Clemente Climate and Swimming Opportunities in September
26°C
Average Day Air Temperature
15°C
Average Night Air Temperature
6 mm
Precipitation Amount per Month
2 days
Number of Rainy Days
12 hrs
Daylight
per Day
9 hrs
Sunshine
per Day
12 km/h
Average Wind Speed
69%
Average
humidity
San Clemente lies within the California in United States. The average daytime temperature in San Clemente in September is 79°F (26°C), while the nighttime average is 59°F (15°C). There are typically two rainy days during the month, with a total precipitation of 0.2 inches (6 mm). The daylight duration in September in San Clemente is 12 hours, with an average of 9 hours of sunshine per day. The average wind speed in September is 7 mph (12 km/h), and the humidity level is around 69%.
The water temperature in San Clemente in September ranges from 64°F to 70°F (18°C to 21°C). At the beginning of the month, the average temperature is around 68°F (20°C), shifting to 68°F (20°C) by mid-September and reaching 68°F (20°C) in the last ten days. Overall, the average sea temperature in San Clemente for September is 68°F (20°C). Perfect balance of refreshing water and warm air. One of the best conditions for swimming.
Sea Temperature in September in Nearby Cities
Frequently Asked Questions About Water Temperatures in September in San Clemente
What is the sea temperature in San Clemente in September?
The water temperature in the Pacific Ocean in San Clemente in September ranges from 64°F to 70°F (18°C to 21°C).
Is it possible to swim in the Pacific Ocean in San Clemente in September?
The average sea temperature in San Clemente in September is 68°F (20°C), and the air temperature is 79°F (26°C), so perfect balance of refreshing water and warm air. One of the best conditions for swimming.