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Climate · Big Pine Key

Big Pine Key in September

Warm and wet, as the days shorten.

Typical weather, averaged over 30 years

September in Big Pine Key is warm, around 82°F through the day and night. Rain falls on about five days a week, and the days shorten by 31 minutes from the first week to the last.September in Big Pine Key is warm, around 28°C through the day and night. Rain falls on about five days a week, and the days shorten by 31 minutes from the first week to the last.

Typical
82°F28°Caverage
Wet days
5a week · 66% of days
Daylight
12h 15mon average

Is September a good time to visit Big Pine Key?

September sits outside Big Pine Key's best months, which run from January to April. Expect warm days and rain on about five days a week.

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

Around 82°F in September, against 70°F to 83°F through the year.Around 28°C in September, against 21°C to 28°C through the year.

Chance of a wet day

66% of days in September, against 14% to 66% through the year.

Cloud cover

65% cover in September, against 31% to 66% through the year.

Daylight

12h 15m in September, against 10h 38m to 13h 38m 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. August83°28°4 wet days a weekRain on about four days a week.
  2. September82°28°5 wet days a weekRain on about five days a week.
  3. October80°27°4 wet days a weekRain on about four days a week.

Where Big Pine Key sits, in September

America/New York
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
7:11 AMsets 7:31 PM
Above the sea
0 mlow-lying
Latitude
24.7°Nnorthern hemisphere
Nearest of ours
Miami170 km north-east

The land around Big Pine Key, 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

typical · wet days
See September on the planning mapThe whole year in Big Pine Key

Typical weather, averaged over 30 years (1995–2024). Big Pine Key sits on a grid square that is mostly sea, where the data hold only a daily average, so the page shows one typical temperature, not a high and a low. 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.