San Francisco in March
Find out everything about the water temperature in San Francisco in March. Average, minimum and maximum recorded temperatures as well as daily temperature in March for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in March
Minimum:
79.7 °F
Average:
81.6 °F
Maximum:
83.6 °F
Sea water temperature in San Francisco in March
In the city of San Francisco, the month of March is a great time for swimming. The minimum recorded temperature during this month was 79.7°F on March 15, 2015, with an average temperature being 81.6°F and a maximum temperature reaching 83.6°F on March 26, 2021.
| Date | 10 years average | 2024 | 2023 |
|---|---|---|---|
| Mar 1 | 80.9°F | 81.2°F | 81.7°F |
| Mar 2 | 81.0°F | 80.4°F | 81.7°F |
| Mar 3 | 81.2°F | 80.6°F | 81.8°F |
| Mar 4 | 81.2°F | 81.0°F | 81.7°F |
| Mar 5 | 81.3°F | 81.3°F | 81.6°F |
| Mar 6 | 81.2°F | 81.6°F | 81.1°F |
| Mar 7 | 81.3°F | 82.2°F | 81.5°F |
| Mar 8 | 81.4°F | 82.1°F | 81.5°F |
| Mar 9 | 81.5°F | 82.0°F | 81.6°F |
| Mar 10 | 81.3°F | 81.2°F | 81.2°F |
| Mar 11 | 81.4°F | 81.8°F | 81.5°F |
| Mar 12 | 81.4°F | 81.6°F | 81.3°F |
| Mar 13 | 81.3°F | 81.4°F | 81.2°F |
| Mar 14 | 81.2°F | 81.5°F | 81.2°F |
| Mar 15 | 81.3°F | 81.6°F | 81.3°F |
| Mar 16 | 81.4°F | 81.4°F | 80.5°F |
| Mar 17 | 81.5°F | 81.6°F | 80.7°F |
| Mar 18 | 81.5°F | 81.5°F | 80.8°F |
| Mar 19 | 81.7°F | 81.6°F | 81.6°F |
| Mar 20 | 81.7°F | 81.4°F | 81.7°F |
| Mar 21 | 81.8°F | 81.9°F | 81.0°F |
| Mar 22 | 81.9°F | 81.7°F | 81.5°F |
| Mar 23 | 82.0°F | 81.9°F | 81.6°F |
| Mar 24 | 82.1°F | 82.1°F | 81.6°F |
| Mar 25 | 82.1°F | 82.2°F | 82.0°F |
| Mar 26 | 82.0°F | 82.2°F | 82.0°F |
| Mar 27 | 82.1°F | 82.5°F | 81.9°F |
| Mar 28 | 82.0°F | 82.4°F | 81.7°F |
| Mar 29 | 82.1°F | 82.7°F | 81.8°F |
| Mar 30 | 82.0°F | 82.8°F | 81.8°F |
| Mar 31 | 82.1°F | 82.7°F | 81.9°F |
In San Francisco, the water temperature is comfortable for swimming all year round.
The warmest water in San Francisco was recorded on September 5, 2017, reaching a 86.6°F. While the coldest temperature occurred on January 18, 2015, dipping to 78.8°F. The average readings by season are 81.8°F in Winter, 82.9°F in Spring, 84.8°F in Summer, and 84.5°F in Autumn.
The average temperature in March is slightly warmer than February's average of 81.0°F. And in April, the temperature is expected to rise further, potentially reaching an average of 82.8°F.
Popular neighboring cities and resorts
| City | Water temperature* | Distance** |
|---|---|---|
| San Juan |
83.9°F
|
14mi |
| San Francisco |
84.3°F
|
27mi |
| San Jose |
83.7°F
|
29mi |
| San Francisco |
84.8°F
|
43mi |
| Trinidad |
86.0°F
|
56mi |
* current water temperature in this city
** straight line distance from San Francisco