Home › Cities › Indonesia › Jember
Jember, Indonesia climate
Aw Tropical savanna (dry winter)
Jember has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is November with an average daily high near 92°F, while the coldest is August averaging around 72°F at night. Precipitation totals about 56 inches a year and is strongly seasonal — February alone averages 12.1 inches while August barely receives 0.06 inches.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Jember climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 90 | 90 | 90 | 90 | 90 | 89 | 88 | 89 | 91 | 93 | 92 | 91 |
| Avg temp (°F) | 83 | 83 | 83 | 83 | 83 | 82 | 81 | 80 | 82 | 84 | 85 | 83 |
| Avg low (°F) | 75 | 75 | 76 | 76 | 76 | 75 | 73 | 72 | 73 | 75 | 77 | 76 |
| Precipitation (in) | 11.6 | 12.1 | 9.0 | 5.3 | 2.8 | 1.9 | 0.8 | 0.1 | 0.1 | 1.4 | 3.5 | 7.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 90 | 90 | 90 | 90 | 90 | 89 |
| Avg temp (°F) | 83 | 83 | 83 | 83 | 83 | 82 |
| Avg low (°F) | 75 | 75 | 76 | 76 | 76 | 75 |
| Precipitation (in) | 11.6 | 12.1 | 9.0 | 5.3 | 2.8 | 1.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 88 | 89 | 91 | 93 | 92 | 91 |
| Avg temp (°F) | 81 | 80 | 82 | 84 | 85 | 83 |
| Avg low (°F) | 73 | 72 | 73 | 75 | 77 | 76 |
| Precipitation (in) | 0.8 | 0.1 | 0.1 | 1.4 | 3.5 | 7.5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 86 | 86 | 79 | 72 | 55 | 49 | 43 | 38 | 38 | 56 | 75 | 86 |
| Relative humidity (%) | 88 | 89 | 88 | 86 | 84 | 80 | 72 | 64 | 58 | 60 | 71 | 83 |
| Wind speed (mph) | 3.8 | 3.8 | 3.0 | 2.8 | 3.3 | 3.7 | 4.3 | 4.7 | 4.8 | 4.1 | 3.2 | 3.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 86 | 86 | 79 | 72 | 55 | 49 |
| Relative humidity (%) | 88 | 89 | 88 | 86 | 84 | 80 |
| Wind speed (mph) | 3.8 | 3.8 | 3.0 | 2.8 | 3.3 | 3.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 43 | 38 | 38 | 56 | 75 | 86 |
| Relative humidity (%) | 72 | 64 | 58 | 60 | 71 | 83 |
| Wind speed (mph) | 4.3 | 4.7 | 4.8 | 4.1 | 3.2 | 3.3 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Surabaya Juanda, a weather station, about 134 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.