San Rafael weather in October: San Rafael, California: normal highs, lows, rain and records for October
San Rafael in October has a normal high of 75°F and a normal low of 51°F, a daily mean of 63°F, falling from 79°F on the 1st to 70°F by the 31st. Measurable precipitation falls on 4 days in a normal October, 1.46 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 24°C and low of 11°C, 37 mm of precipitation in October.
- NOAA stationSan Rafael Civic Center
- Station IDUSC00047880
- Location38.00°N 122.54°W
- Elevation120 ft (37 m)
- From the center2 miles
- Population59,961
- Jan 57° 43°
- Feb 61° 44°
- Mar 65° 46°
- Apr 68° 48°
- May 72° 51°
- Jun 78° 54°
- Jul 81° 55°
- Aug 81° 56°
- Sep 81° 54°
- Oct 75° 51°
- Nov 65° 46°
- Dec 57° 42°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is San Rafael in October?
The normal high is 75°F and the normal low 51°F, for a daily mean of 63.2°F. October is 4.4°F cooler than September and 7.9°F warmer than November. October is the 5th warmest month of the year in San Rafael and the 7th wettest. Across the month the normal high falls 9°F, from 79°F on October 1 to 70°F on October 31. From one year to the next October's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 61°F and 65°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 18%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 79°F | 53°F | 7% | 3% |
| October 8 | 77°F | 53°F | 9% | 5% |
| October 15 | 75°F | 52°F | 11% | 6% |
| October 22 | 73°F | 51°F | 14% | 8% |
| October 31 | 70°F | 49°F | 18% | 11% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 79°F | 53°F | 7% | 3% | 11 h 50 min |
| October 2 | 79°F | 53°F | 7% | 3% | 11 h 50 min |
| October 3 | 78°F | 53°F | 7% | 4% | 11 h 50 min |
| October 4 | 78°F | 53°F | 8% | 4% | 11 h 40 min |
| October 5 | 78°F | 53°F | 8% | 4% | 11 h 40 min |
| October 6 | 78°F | 53°F | 8% | 4% | 11 h 40 min |
| October 7 | 78°F | 53°F | 9% | 4% | 11 h 40 min |
| October 8 | 77°F | 53°F | 9% | 5% | 11 h 30 min |
| October 9 | 77°F | 52°F | 9% | 5% | 11 h 30 min |
| October 10 | 77°F | 52°F | 10% | 5% | 11 h 30 min |
| October 11 | 77°F | 52°F | 10% | 5% | 11 h 30 min |
| October 12 | 76°F | 52°F | 10% | 5% | 11 h 20 min |
| October 13 | 76°F | 52°F | 11% | 6% | 11 h 20 min |
| October 14 | 76°F | 52°F | 11% | 6% | 11 h 20 min |
| October 15 | 75°F | 52°F | 11% | 6% | 11 h 20 min |
| October 16 | 75°F | 52°F | 12% | 6% | 11 h 10 min |
| October 17 | 75°F | 51°F | 12% | 7% | 11 h 10 min |
| October 18 | 75°F | 51°F | 12% | 7% | 11 h 10 min |
| October 19 | 74°F | 51°F | 13% | 7% | 11 h 10 min |
| October 20 | 74°F | 51°F | 13% | 7% | 11 h |
| October 21 | 74°F | 51°F | 13% | 8% | 11 h |
| October 22 | 73°F | 51°F | 14% | 8% | 11 h |
| October 23 | 73°F | 51°F | 14% | 8% | 11 h |
| October 24 | 73°F | 50°F | 15% | 8% | 11 h |
| October 25 | 72°F | 50°F | 15% | 9% | 10 h 50 min |
| October 26 | 72°F | 50°F | 15% | 9% | 10 h 50 min |
| October 27 | 72°F | 50°F | 16% | 9% | 10 h 50 min |
| October 28 | 71°F | 50°F | 16% | 10% | 10 h 50 min |
| October 29 | 71°F | 49°F | 17% | 10% | 10 h 40 min |
| October 30 | 71°F | 49°F | 17% | 10% | 10 h 40 min |
| October 31 | 70°F | 49°F | 18% | 11% | 10 h 40 min |
- Normal high
- 75°FOctober average
- Normal low
- 51°FOctober average
- Precipitation
- 1.46 inmonth total
- Days with precipitation
- 40.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 11 h 50 min to 10 h 40 minOctober 1 to October 31
- Days at 70°F or more
- 22
- Days at 80°F or more
- 8
- Sunshine
- 83%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00047880; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in San Rafael in October?
On a given October day the chance of 0.01 inch or more is 12% on average, highest around October 31 (18%). In all, 1.46 in falls on 4 days of a normal October.
In a normal October in San Rafael, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00047880.
What are the records for October in San Rafael?
The warmest October temperature on this station's record (since 1894) is 108°F, on October 7, 2024; the coldest is 28°F, on October 28, 1894. The wettest October brought 10.04 in (1962).
The October mean against the 1991-2020 normal of 63.2°F: 2022 63.7°F (+0.5), 2023 65.5°F (+2.3), 2024 69.6°F (+6.4), 2025 63.0°F (−0.2). 3 of 4 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 63.7°F | +0.5°F | 0.00 in |
| 2023 | 65.5°F | +2.3°F | 0.14 in |
| 2024 | 69.6°F | +6.4°F | 0.17 in |
| 2025 | 63.0°F | −0.2°F | 1.39 in |
Source: records: ACIS, station USC00047880; recent months: ACIS, station USC00047880. Records and recent months use complete months only.
How does October in San Rafael compare across California?
Across the 219 places PlainClimate covers in California, October normal highs run from 58°F in Tahoma to 93°F in Brawley; San Rafael's is 75°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- San Rafael in September81°F by day, 54°F at night
- San Rafael in November65°F by day, 46°F at night
- San Rafael through the yearEvery month, frost dates, records and recent years
- California in OctoberThe statewide normal and the warmest and coolest places
- Brawley: California's warmest Octobernormal high 93°F