Pacifica weather in September: Pacifica, California: normal highs, lows, rain and records for September
Pacifica in September has a normal high of 72°F and a normal low of 53°F, a daily mean of 63°F, holding near 72°F all month. Measurable precipitation falls on 2 days in a normal September, 0.11 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 22°C and low of 12°C, 3 mm of precipitation in September.
- NOAA stationPacifica (4 mi SSE)
- Station IDUSC00046599
- Location37.59°N 122.47°W
- Elevation475 ft (145 m)
- From the center1 miles
- Population37,056
- Jan 58° 45°
- Feb 60° 46°
- Mar 61° 46°
- Apr 64° 48°
- May 67° 49°
- Jun 69° 51°
- Jul 69° 52°
- Aug 71° 53°
- Sep 72° 53°
- Oct 70° 52°
- Nov 64° 50°
- Dec 59° 46°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Pacifica in September?
The normal high is 72°F and the normal low 53°F, for a daily mean of 62.9°F. September is 0.7°F warmer than August and 1.7°F warmer than October. September is the warmest month of the year in Pacifica and the 10th wettest. From one year to the next September's mean temperature typically moves about 1.9°F either way (NOAA's standard deviation), so roughly two Septembers 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 8%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 72°F | 53°F | 5% | 1% |
| September 8 | 73°F | 53°F | 5% | 1% |
| September 15 | 73°F | 53°F | 6% | 2% |
| September 22 | 72°F | 53°F | 7% | 2% |
| September 30 | 72°F | 53°F | 8% | 3% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 7, coldest night September 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 72°F | 53°F | 5% | 1% | 13 h |
| September 2 | 72°F | 53°F | 5% | 1% | 13 h |
| September 3 | 72°F | 53°F | 5% | 1% | 13 h |
| September 4 | 72°F | 53°F | 5% | 1% | 12 h 50 min |
| September 5 | 72°F | 53°F | 5% | 1% | 12 h 50 min |
| September 6 | 72°F | 53°F | 5% | 1% | 12 h 50 min |
| September 7 | 73°F | 53°F | 5% | 1% | 12 h 50 min |
| September 8 | 73°F | 53°F | 5% | 1% | 12 h 50 min |
| September 9 | 73°F | 53°F | 5% | 1% | 12 h 40 min |
| September 10 | 73°F | 53°F | 5% | 1% | 12 h 40 min |
| September 11 | 73°F | 53°F | 5% | 2% | 12 h 40 min |
| September 12 | 73°F | 53°F | 6% | 2% | 12 h 40 min |
| September 13 | 73°F | 53°F | 6% | 2% | 12 h 30 min |
| September 14 | 73°F | 53°F | 6% | 2% | 12 h 30 min |
| September 15 | 73°F | 53°F | 6% | 2% | 12 h 30 min |
| September 16 | 72°F | 54°F | 6% | 2% | 12 h 30 min |
| September 17 | 72°F | 54°F | 6% | 2% | 12 h 20 min |
| September 18 | 72°F | 54°F | 6% | 2% | 12 h 20 min |
| September 19 | 72°F | 54°F | 6% | 2% | 12 h 20 min |
| September 20 | 72°F | 54°F | 6% | 2% | 12 h 20 min |
| September 21 | 72°F | 53°F | 7% | 2% | 12 h 10 min |
| September 22 | 72°F | 53°F | 7% | 2% | 12 h 10 min |
| September 23 | 72°F | 53°F | 7% | 2% | 12 h 10 min |
| September 24 | 72°F | 53°F | 7% | 2% | 12 h 10 min |
| September 25 | 72°F | 53°F | 7% | 3% | 12 h 10 min |
| September 26 | 72°F | 53°F | 7% | 3% | 12 h |
| September 27 | 72°F | 53°F | 7% | 3% | 12 h |
| September 28 | 72°F | 53°F | 8% | 3% | 12 h |
| September 29 | 72°F | 53°F | 8% | 3% | 12 h |
| September 30 | 72°F | 53°F | 8% | 3% | 11 h 50 min |
- Normal high
- 72°FSeptember average
- Normal low
- 53°FSeptember average
- Precipitation
- 0.11 inmonth total
- Days with precipitation
- 20.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 13 h to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 16
- Days at 80°F or more
- 4
- Sunshine
- 82%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00046599; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Pacifica in September?
On a given September day the chance of 0.01 inch or more is 6% on average, highest around September 30 (8%). In all, 0.11 in falls on 2 days of a normal September.
In a normal September in Pacifica, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00046599.
How does September in Pacifica compare across California?
Across the 219 places PlainClimate covers in California, September normal highs run from 64°F in Eureka to 104°F in Brawley; Pacifica's is 72°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.