San Francisco in August
Find out everything about the water temperature in San Francisco in August. Average, minimum and maximum recorded temperatures as well as daily temperature in August for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in August
Minimum:
81.8 °F
Average:
84.6 °F
Maximum:
86.2 °F
Sea water temperature in San Francisco in August
In the city of San Francisco, the month of August is a great time for swimming. The minimum recorded temperature during this month was 81.8°F on August 9, 2015, with an average temperature being 84.6°F and a maximum temperature reaching 86.2°F on August 17, 2024.
| Date | 10 years average | 2024 | 2023 |
|---|---|---|---|
| Aug 1 | 84.6°F | 85.5°F | 84.3°F |
| Aug 2 | 84.6°F | 85.4°F | 84.2°F |
| Aug 3 | 84.5°F | 85.5°F | 84.3°F |
| Aug 4 | 84.3°F | 85.3°F | 84.4°F |
| Aug 5 | 84.3°F | 85.1°F | 84.5°F |
| Aug 6 | 84.1°F | 84.9°F | 84.4°F |
| Aug 7 | 84.3°F | 84.9°F | 84.8°F |
| Aug 8 | 84.3°F | 84.9°F | 85.0°F |
| Aug 9 | 84.3°F | 84.8°F | 84.6°F |
| Aug 10 | 84.1°F | 84.6°F | 84.5°F |
| Aug 11 | 84.4°F | 84.9°F | 84.5°F |
| Aug 12 | 84.5°F | 85.0°F | 84.6°F |
| Aug 13 | 84.6°F | 85.1°F | 84.6°F |
| Aug 14 | 84.6°F | 85.1°F | 84.6°F |
| Aug 15 | 84.7°F | 85.2°F | 84.5°F |
| Aug 16 | 84.8°F | 86.0°F | 84.4°F |
| Aug 17 | 84.8°F | 86.2°F | 84.5°F |
| Aug 18 | 84.7°F | 86.1°F | 84.4°F |
| Aug 19 | 84.8°F | 85.7°F | 84.5°F |
| Aug 20 | 84.9°F | 85.7°F | 84.6°F |
| Aug 21 | 84.8°F | 85.7°F | 84.6°F |
| Aug 22 | 84.9°F | 85.9°F | 84.8°F |
| Aug 23 | 84.9°F | 85.8°F | 84.8°F |
| Aug 24 | 84.8°F | 85.7°F | 84.8°F |
| Aug 25 | 84.8°F | 85.6°F | 84.9°F |
| Aug 26 | 84.8°F | 85.8°F | 85.2°F |
| Aug 27 | 85.0°F | 85.7°F | 85.2°F |
| Aug 28 | 85.0°F | 85.7°F | 85.2°F |
| Aug 29 | 84.9°F | 85.3°F | 85.3°F |
| Aug 30 | 84.9°F | 85.2°F | 84.9°F |
| Aug 31 | 85.0°F | 85.1°F | 84.6°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.
August's temperature is a dip compared to warmer July at 84.8°F and September at 84.7°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