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Climate · Big Sur

Big Sur in September

Warm and dry, as the days shorten.

Typical weather, averaged over 30 years

September in Big Sur is warm: highs near 73°F, lows near 57°F. Rain is rare, and the days shorten by 50 minutes from the first week to the last.September in Big Sur is warm: highs near 23°C, lows near 14°C. Rain is rare, and the days shorten by 50 minutes from the first week to the last.

High
73°F23°Caverage
Low
57°F14°Caverage
Wet days
0a week · 3% of days
Daylight
12h 20mon average

Is September a good time to visit Big Sur?

Yes. September is one of Big Sur's best months (July to October).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 73°F in September, against 59°F to 73°F through the year.Highs near 23°C in September, against 15°C to 23°C through the year.

Chance of a wet day

3% of days in September, against 1% to 34% through the year.

Cloud cover

14% cover in September, against 14% to 55% through the year.

Daylight

12h 20m in September, against 9h 44m to 14h 35m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August73°23°low 57°low 14°no wet daysRain on fewer than one day a week.
  2. September73°23°low 57°low 14°no wet daysRain on fewer than one day a week.
  3. October71°22°low 55°low 13°no wet daysRain on fewer than one day a week.

Where Big Sur sits, in September

America/Los Angeles
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
6:49 AMsets 7:17 PM
Above the sea
366 mlow-lying
Latitude
36.3°Nnorthern hemisphere
Nearest of ours
Carmel33 km north

The land around Big Sur, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in United States in September

high · low · wet days
See September on the planning mapThe whole year in Big Sur

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Big Sur. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (366 m) against the climate model's (439 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (366 m) against the climate model's (439 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.