San Francisco vs Austin weather
July highs: 66°F in San Francisco, 97°F in Austin (Austin is 31°F warmer). January highs: 58°F and 63°F (Austin is 5°F warmer). San Francisco has about 71 wet days a year, Austin about 86. Muggy days: almost none in San Francisco, about 137 in Austin.
San Francisco, CA
Best months: July, August
Austin, TX
Best months: February, March, November
Which city for what
- Milder winters: Austin (January high 63°F vs January high 58°F)
- Cooler summers: San Francisco (July high 66°F vs July high 97°F)
- Fewer wet days: San Francisco (71 a year vs 86 a year)
- Less humid: San Francisco (0 muggy days vs 137 muggy days)
- Longer growing season: San Francisco (365 frost-free days vs 291 frost-free days)
- More comfortable days: San Francisco (151 a year vs 85 a year)
Listed only where the difference is at least 3°F in highs, 10 days a year or 3 in of snow.
Season by season
| Season | Avg high San Francisco | Avg high Austin | Wet days San Francisco | Wet days Austin |
|---|---|---|---|---|
| Winter (Dec-Feb) | 59°F | 64°F | 34 | 23 |
| Spring (Mar-May) | 63°F | 80°F | 22 | 25 |
| Summer (Jun-Aug) | 67°F | 96°F | 3 | 17 |
| Fall (Sep-Nov) | 68°F | 82°F | 13 | 21 |
Side by side over a year
| San Francisco | Austin | |
|---|---|---|
| Hot days (90°F+) | 3 | 123 |
| Freezing nights | 0 | 12 |
| Muggy days | 0 | 137 |
| Comfortable days | 151 | 85 |
| Precipitation | 22.9 in | 36.3 in |
| Snowfall | 0.0 in | 0.2 in |
| Frost dates | frost-free | last Feb 20, first Dec 3 |
| Daylight in June / December | 14.7 h / 9.6 h | 14.1 h / 10.2 h |
| Best months | July, August | February, March, November |
Day counts from each city's daily records, 1991-2020. Comfortable days: highs 65-80°F and dew point under 60°F.
Month by month
| Month | High San Francisco | High Austin | Wet days San Francisco | Wet days Austin |
|---|---|---|---|---|
| January | 58°F | 63°F | 11 | 8 |
| February | 60°F | 67°F | 11 | 8 |
| March | 62°F | 73°F | 11 | 9 |
| April | 63°F | 80°F | 7 | 7 |
| May | 64°F | 87°F | 4 | 9 |
| June | 67°F | 93°F | 2 | 7 |
| July | 66°F | 97°F | 1 | 5 |
| August | 68°F | 98°F | 1 | 5 |
| September | 70°F | 91°F | 1 | 7 |
| October | 70°F | 83°F | 4 | 7 |
| November | 64°F | 72°F | 8 | 7 |
| December | 58°F | 64°F | 12 | 8 |
Both charts use the same temperature scale.
Where the numbers come from
- San Francisco, CA: temperature from San Francisco Downtown (USW00023272), 0.5 mi SW of the city center; precipitation from San Francisco Downtown (USW00023272). NOAA 1991-2020 normals and daily records.
- Austin, TX: temperature from Austin-Camp Mabry (USW00013958), 3.9 mi NNW of the city center; precipitation from Austin-Camp Mabry (USW00013958). NOAA 1991-2020 normals and daily records.
Every station for each city, including humidity and frost, is listed on the city page. Methodology.