Climate averages 1991–2020
Jember weather
in August.
A hot, fairly dry month: the joint 10th warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Jember: daytime highs average 28.4°C and nights cool to about 20.5°C. By daytime temperature it is the joint 10th warmest of the 12 months.
Expect about 25 mm of rain on roughly 6 days, which makes August a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 51 min on an average August day.
The nearest other city in this atlas is Lumajang (52 km away). In August its highs average 27.9°C, 0.5°C cooler than Jember, with 35 mm of rain.
Among the 200 cities listed in Indonesia, Jember ranks joint 144th of 200 for the warmest August highs and 60th of 200 for the driest August (rainfall, lowest first). The mean August high of those 200 cities is 29.5°C; Jember is 1.1°C cooler than that mean.
From August to September, average highs rise by 0.8°C to 29.3°C, and monthly rainfall rises from 25 mm to 57 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Jember climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.5°C22.7°C | 22.7°C | 358 | 29.3 | 12.513 h |
| February | 28.7°C22.7°C | 22.7°C | 337 | 27.4 | 12.412 h |
| March | 29.1°C22.7°C | 22.7°C | 322 | 27.8 | 12.212 h |
| April | 29.3°C22.7°C | 22.7°C | 214 | 24.3 | 11.912 h |
| May | 29.2°C22.1°C | 22.1°C | 108 | 15.5 | 11.712 h |
| June | 28.6°C21.4°C | 21.4°C | 64 | 10.7 | 11.712 h |
| July | 28.1°C20.7°C | 20.7°C | 38 | 7.5 | 11.712 h |
| August, selected | 28.4°C20.5°C | 20.5°C | 25 | 6.2 | 11.812 h |
| September | 29.3°C21.3°C | 21.3°C | 57 | 10.2 | 12.112 h |
| October | 29.8°C22.3°C | 22.3°C | 119 | 18.0 | 12.312 h |
| November | 29.1°C22.9°C | 22.9°C | 268 | 25.4 | 12.512 h |
| December | 28.4°C22.8°C | 22.8°C | 338 | 28.2 | 12.613 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Lumajang in AugustIndonesia · 52 kmHigh 27.9°C · Low 21.2°C · 35 mm rain
- Genteng in AugustIndonesia · 54 kmHigh 26.6°C · Low 19.3°C · 34 mm rain
- Situbondo in AugustIndonesia · 62 kmHigh 31.3°C · Low 22.4°C · 4.1 mm rain
- Probolinggo in AugustIndonesia · 71 kmHigh 29.5°C · Low 23.4°C · 3.7 mm rain
- Banyuwangi in AugustIndonesia · 73 kmHigh 28.4°C · Low 22.3°C · 34 mm rain
- Negara in AugustIndonesia · 103 kmHigh 27.9°C · Low 23.3°C · 6.4 mm rain
- Pasuruan in AugustIndonesia · 105 kmHigh 30.8°C · Low 21.9°C · 3.5 mm rain
- Pamekasan in AugustIndonesia · 116 kmHigh 29.3°C · Low 25.3°C · 2.5 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Jember) is explained once on the Jember year overview and on the Sources, method and limits page.