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Climate · Sumbawa

Sumbawa in January

Hot and wet, as the days hold steady.

Typical weather, averaged over 30 years

January in Sumbawa is hot: highs near 85°F, lows near 77°F. Rain falls on about six days a week, and daylight holds at about 12 hours 33 minutes.January in Sumbawa is hot: highs near 29°C, lows near 25°C. Rain falls on about six days a week, and daylight holds at about 12 hours 33 minutes.

High
85°F29°Caverage
Low
77°F25°Caverage
Wet days
6a week · 85% of days
Daylight
12h 33mon average

Is January a good time to visit Sumbawa?

A good month, just outside Sumbawa's best months, which run from June to September.

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 January sits in the year

week by week

Temperature

Highs near 85°F in January, against 85°F to 89°F through the year.Highs near 29°C in January, against 29°C to 32°C through the year.

Chance of a wet day

85% of days in January, against 3% to 92% through the year.

Cloud cover

79% cover in January, against 55% to 80% through the year.

Daylight

12h 33m in January, against 11h 39m to 12h 36m through the year.

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

Either side

  1. December86°30°low 78°low 26°6 wet days a weekRain on about six days a week.
  2. January85°29°low 77°low 25°6 wet days a weekRain on about six days a week.
  3. February85°29°low 77°low 25°6 wet days a weekRain on about six days a week.

Where Sumbawa sits, in January

Asia/Makassar
this place
typical high in January 40°F4°C95°F35°C
Sunrise, mid-January
6:02 AMsets 6:35 PM
Above the sea
0 mlow-lying
Latitude
8.3°Ssouthern hemisphere
Nearest of ours
Southwest Sumba212 km south-east

The land around Sumbawa, shaded by its typical high in January, 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 Indonesia in January

high · low · wet days
See January on the planning mapThe whole year in Sumbawa

Typical weather, averaged over 30 years (1995–2024), read 7 km north of Sumbawa. Its own grid square is mostly sea and holds only a daily average, so the page reads the nearest square with a true high and low near the town's height. 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 (0 m) against the climate model's (96 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 (0 m) against the climate model's (96 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.