Search for cities, countries, lakes and rivers
Sea Temperature in San Mateo in September
Complete information on the sea temperature range in the Pacific Ocean in San Mateo in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in San Mateo. 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 Mateo in September
54°F
MINIMUN
60°F
AVERAGE
66°F
MAXIMUM
Historical Data of Water Temperature in September in San Mateo
Water Temperature Chart for Pacific Ocean in San Mateo in September
Sea Temperature Table in San Mateo in September Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Sep 1 | 64°C | 55°C | 57°C | 59°C |
| Sep 2 | 63°C | 54°C | 57°C | 58°C |
| Sep 3 | 63°C | 59°C | 57°C | 60°C |
| Sep 4 | 63°C | 54°C | 55°C | 58°C |
| Sep 5 | 63°C | 59°C | 59°C | 60°C |
| Sep 6 | 64°C | 57°C | 59°C | 60°C |
| Sep 7 | 63°C | 57°C | 55°C | 58°C |
| Sep 8 | 63°C | 55°C | 55°C | 58°C |
| Sep 9 | 61°C | 54°C | 54°C | 56°C |
| Sep 10 | 61°C | 55°C | 57°C | 58°C |
| Sep 11 | 63°C | 57°C | 57°C | 59°C |
| Sep 12 | 63°C | 55°C | 59°C | 59°C |
| Sep 13 | 63°C | 55°C | 57°C | 58°C |
| Sep 14 | 63°C | 59°C | 57°C | 59°C |
| Sep 15 | 61°C | 54°C | 57°C | 57°C |
| Sep 16 | 61°C | 55°C | 57°C | 58°C |
| Sep 17 | 61°C | 59°C | 55°C | 58°C |
| Sep 18 | 63°C | 59°C | 57°C | 60°C |
| Sep 19 | 64°C | 59°C | 59°C | 60°C |
| Sep 20 | 63°C | 54°C | 54°C | 57°C |
| Sep 21 | 63°C | 57°C | 54°C | 58°C |
| Sep 22 | 64°C | 54°C | 55°C | 58°C |
| Sep 23 | 64°C | 57°C | 59°C | 60°C |
| Sep 24 | 64°C | 55°C | 55°C | 59°C |
| Sep 25 | 64°C | 57°C | 54°C | 58°C |
| Sep 26 | 64°C | 55°C | 59°C | 60°C |
| Sep 27 | 64°C | 57°C | 55°C | 59°C |
| Sep 28 | 63°C | 55°C | 54°C | 58°C |
| Sep 29 | 64°C | 57°C | 57°C | 60°C |
San Mateo Climate and Swimming Opportunities in September
73°F
Average Day Air Temperature
57°F
Average Night Air Temperature
0 in
Precipitation Amount per Month
2 days
Number of Rainy Days
12 hrs
Daylight
per Day
9 hrs
Sunshine
per Day
8 mph
Average Wind Speed
70%
Average
humidity
San Mateo lies within the California in United States. The average daytime temperature in San Mateo in September is 73°F (23°C), while the nighttime average is 56°F (14°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 Mateo is 12 hours, with an average of 9 hours of sunshine per day. The average wind speed in September is 8 mph (13 km/h), and the humidity level is around 70%.
The water temperature in San Mateo in September ranges from 55°F to 59°F (13°C to 15°C). At the beginning of the month, the average temperature is around 59°F (15°C), shifting to 59°F (15°C) by mid-September and reaching 59°F (15°C) in the last ten days. Overall, the average sea temperature in San Mateo for September is 59°F (15°C). The contrast between cool water and warm air makes for a refreshing swim. A great choice for those who enjoy invigorating dips.
Sea Temperature in September in Nearby Cities
Frequently Asked Questions About Water Temperatures in September in San Mateo
What is the sea temperature in San Mateo in September?
The water temperature in the Pacific Ocean in San Mateo in September ranges from 55°F to 59°F (13°C to 15°C).
Is it possible to swim in the Pacific Ocean in San Mateo in September?
The average sea temperature in San Mateo in September is 59°F (15°C), and the air temperature is 73°F (23°C), so the contrast between cool water and warm air makes for a refreshing swim. A great choice for those who enjoy invigorating dips.