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Climate · Lake St Clair

Lake St Clair in September

Cool and wet, as the days lengthen.

Typical weather, averaged over 30 years

September in Lake St Clair is cool: highs near 51°F, lows near 36°F. Rain falls on about five days a week, and the days lengthen by 1 hour 1 minute from the first week to the last.September in Lake St Clair is cool: highs near 11°C, lows near 2°C. Rain falls on about five days a week, and the days lengthen by 1 hour 1 minute from the first week to the last.

High
51°F11°Caverage
Low
36°F2°Caverage
Wet days
5a week · 68% of days
Daylight
11h 55mon average

Is September a good time to visit Lake St Clair?

September sits outside Lake St Clair's best months, which run from January to February. Expect cool 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

Highs near 51°F in September, against 47°F to 68°F through the year.Highs near 11°C in September, against 8°C to 20°C through the year.

Chance of a wet day

68% of days in September, against 39% to 68% through the year.

Cloud cover

67% cover in September, against 52% to 77% through the year.

Daylight

11h 55m in September, against 9h 09m to 15h 12m 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. August48°9°low 35°low 2°5 wet days a weekRain on about five days a week.
  2. September51°11°low 36°low 2°5 wet days a weekRain on about five days a week.
  3. October55°13°low 38°low 3°4 wet days a weekRain on about four days a week.

Where Lake St Clair sits, in September

Australia/Hobart
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
6:18 AMsets 6:03 PM
Above the sea
740 mupland
Latitude
42.1°Ssouthern hemisphere
Nearest of ours
Coles Bay175 km east

The land around Lake St Clair, 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 Australia in September

high · low · wet days
See September on the planning mapThe whole year in Lake St Clair

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Lake St Clair. 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 (740 m) against the climate model's (913 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 (740 m) against the climate model's (913 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.