Pacifica Weather in September
Pacifica in September
The short of it: Pacifica in September averages a high of 21 °C (70 °F) and a low of 11 °C (53 °F), with 4.0 mm (0.16 in) of rain and about 12 h 22 min of daylight. Rated 5 of 5 for a visit; the best months are September and October. Source: TerraClimate climate normals, 1991–2020.
Average high 70° · low 53° · rain 0.2 in. · daylight 12 h 22 min
✦✦✦✦✦ Recommended for a visit · best months: September & October
Thirty years of records give Pacifica an average September high of 70°, a low of 53° and some 0.2 in. of rain. No month in Pacifica runs warmer: highs about 70°. Rain is scarce, about 0.2 in., the 10th wettest month.
The sun is up for about 12 h 22 min in mid-September, 74 minutes less than a month before.
For the traveller: pack light clothes and a jacket for the evening. The Almanac rates September 5 of 5 for a visit; it is the best month of the year to come.
Against its neighbours, Pacifica runs cooler than most and wetter than most in September. San Bruno, 4 mi to the ENE, is 5° warmer by day.
September in Pacifica, by the numbers
- Warmth rank
- 1st warmest of 12
- Rain rank
- 10th wettest of 12
- Versus August
- 1° warmer, 0.08 in. more rain
- Versus October
- 1° warmer
- Day–night spread
- 17°
- Snow season
- seldom any
- Daylight, mid-month
- 12 h 22 min
- Average wind
- 8 mph
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| San BrunoCalifornia | 4 mi ENE | 74° | 55° | 0.1 in. |
| South San FranciscoCalifornia | 5 mi ENE | 74° | 55° | 0.1 in. |
| Daly CityCalifornia | 6 mi NNE | 72° | 54° | 0.2 in. |
| BurlingameCalifornia | 7 mi ESE | 75° | 54° | 0.08 in. |
| San MateoCalifornia | 10 mi ESE | 76° | 55° | 0.08 in. |
| Bayview-Hunters PointCalifornia | 10 mi NE | 74° | 55° | 0.1 in. |
| Mission DistrictCalifornia | 11 mi NNE | 74° | 54° | 0.2 in. |
| San FranciscoCalifornia | 12 mi NNE | 74° | 54° | 0.2 in. |