Climate averages 1991–2020
Jember weather
in October.
A hot, wet month: the warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in Jember: daytime highs average 29.8°C and nights cool to about 22.3°C. By daytime temperature it is the warmest month of the year.
Expect about 119 mm of rain on roughly 18 days, which makes October a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 17 min on an average October day.
The nearest other city in this atlas is Lumajang (52 km away). In October its highs average 29.9°C, about as warm as Jember, with 96 mm of rain.
Among the 200 cities listed in Indonesia, Jember ranks joint 114th of 200 for the warmest October highs and joint 59th of 200 for the driest October (rainfall, lowest first). The mean October high of those 200 cities is 30.1°C; Jember is 0.2°C cooler than that mean.
From October to November, average highs fall by 0.7°C to 29.1°C, and monthly rainfall rises from 119 mm to 268 mm.
The annual picture
October 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 | 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, selected | 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
October in nearby cities
- Lumajang in OctoberIndonesia · 52 kmHigh 29.9°C · Low 22.9°C · 96 mm rain
- Genteng in OctoberIndonesia · 54 kmHigh 28.5°C · Low 20.9°C · 85 mm rain
- Situbondo in OctoberIndonesia · 62 kmHigh 32.2°C · Low 23.9°C · 67 mm rain
- Probolinggo in OctoberIndonesia · 71 kmHigh 30.9°C · Low 25.0°C · 39 mm rain
- Banyuwangi in OctoberIndonesia · 73 kmHigh 30.3°C · Low 23.8°C · 85 mm rain
- Negara in OctoberIndonesia · 103 kmHigh 29.3°C · Low 24.4°C · 39 mm rain
- Pasuruan in OctoberIndonesia · 105 kmHigh 32.2°C · Low 23.6°C · 33 mm rain
- Pamekasan in OctoberIndonesia · 116 kmHigh 31.0°C · Low 26.0°C · 45 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.