Santa Rosa, California Climate
United States
Pop. 178,127 Elev. 55 m / 180 ft
TZ: America/Los_Angeles (UTC-7) ·
Dry and warm, Santa Rosa sees August highs of 86°F (30°C) and cool January lows of 38°F (3°C). Expect around 32 rainy days annually (28.1 in / 714 mm total). The city averages 217 sunny days per year and around 20 thunderstorm days. Ocean water temperatures reach 61°F (16°C) in summer.
| Temperature | 86°F (30°C) high | 38°F (3°C) low |
| Feels like | 89°F (32°C) high | 38°F (3°C) low |
| Rain | 32 days | 28.1 in (714 mm) /yr |
| Sky | 217 sunny | 20 stormy |
| Wind | 2.6 mph (1.2 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Jan, Apr, May, Jun, Jul, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
33
Jan 61
Feb 58
Mar 48
Apr 20
May 13
Jun 21
Jul 13
Aug 35
Sep 40
Oct 62
Nov 57
Dec Humidity (%)
63
Jan 75
Feb 73
Mar 69
Apr 53
May 54
Jun 61
Jul 52
Aug 64
Sep 72
Oct 81
Nov 84
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 7 mi Charles M. Schulz Sonoma County Airport (STS)
Ski resort 141 mi Sugar Bowl Resort
National park 11 mi Jack London State Historic Park
Mountain peak
(6,113 ft) 57 mi Goat Mountain
Hospital 1 mi Santa Rosa Memorial Hospital
Hiking trail 20 mi Bay Area Ridge Trail - 01 - North Bay
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 62°F 17°C | 38°F 3°C | 0.9 in 23 mm | — | 21 |
| February | 60°F 16°C | 42°F 5°C | 9.0 in 229 mm | — | 7 |
| March | 63°F 17°C | 43°F 6°C | 4.3 in 108 mm | — | 11 |
| April | 69°F 21°C | 46°F 8°C | 0.6 in 16 mm | — | 13 |
| May | 78°F 26°C | 52°F 11°C | 0.1 in 3 mm | — | 26 |
| June | 81°F 27°C | 55°F 13°C | 0.0 in 0 mm | — | 28 |
| July | 80°F 27°C | 56°F 14°C | 0.0 in 1 mm | — | 27 |
| August | 86°F 30°C | 59°F 15°C | 0.0 in 0 mm | — | 30 |
| September | 82°F 28°C | 59°F 15°C | 0.5 in 12 mm | — | 17 |
| October | 72°F 22°C | 50°F 10°C | 1.8 in 46 mm | — | 18 |
| November | 65°F 19°C | 47°F 9°C | 3.9 in 99 mm | — | 7 |
| December | 58°F 14°C | 43°F 6°C | 7.0 in 177 mm | — | 12 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 21 | 0 |
| February | 7 | 5 |
| March | 11 | 5 |
| April | 13 | 1 |
| May | 26 | 0 |
| June | 28 | 0 |
| July | 27 | 0 |
| August | 30 | 0 |
| September | 17 | 0 |
| October | 18 | 1 |
| November | 7 | 3 |
| December | 12 | 5 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 54°F 12°C | 43°F 6°C |
| February | 54°F 12°C | 43°F 6°C |
| March | 54°F 12°C | 47°F 8°C |
| April | 55°F 13°C | 54°F 12°C |
| May | 53°F 12°C | 60°F 15°C |
| June | 54°F 12°C | 67°F 19°C |
| July | 56°F 13°C | 70°F 21°C |
| August | 60°F 15°C | 71°F 22°C |
| September | 61°F 16°C | 68°F 20°C |
| October | 61°F 16°C | 59°F 15°C |
| November | 58°F 14°C | 54°F 12°C |
| December | 57°F 14°C | 48°F 9°C |