Climate averages 1991–2020
Mataram weather
in September.
A hot, fairly dry month: the 2nd warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Mataram: daytime highs average 30.9°C and nights cool to about 23.1°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 15 mm of rain on roughly 2 days, which makes September a fairly dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 03 min on an average September day.
The nearest other city in this atlas is Selong (46 km away). In September its highs average 29.4°C, 1.4°C cooler than Mataram, with 17 mm of rain.
Among the 200 cities listed in Indonesia, Mataram ranks joint 74th of 200 for the warmest September highs and 14th of 200 for the driest September (rainfall, lowest first). The mean September high of those 200 cities is 30.1°C; Mataram is 0.8°C warmer than that mean.
From September to October, average highs rise by 0.2°C to 31.0°C, and monthly rainfall rises from 15 mm to 47 mm.
The annual picture
September 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
Mataram climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.3°C24.5°C | 24.5°C | 248 | 27.6 | 12.613 h |
| February | 28.4°C24.5°C | 24.5°C | 215 | 25.4 | 12.412 h |
| March | 28.9°C24.6°C | 24.6°C | 218 | 25.5 | 12.212 h |
| April | 29.5°C24.6°C | 24.6°C | 159 | 18.8 | 11.912 h |
| May | 29.9°C24.2°C | 24.2°C | 48 | 7.9 | 11.712 h |
| June | 29.8°C23.6°C | 23.6°C | 29 | 4.6 | 11.612 h |
| July | 29.6°C22.8°C | 22.8°C | 17 | 2.8 | 11.712 h |
| August | 30.2°C22.5°C | 22.5°C | 5.0 | 1.2 | 11.812 h |
| September, selected | 30.9°C23.1°C | 23.1°C | 15 | 2.1 | 12.012 h |
| October | 31.0°C24.1°C | 24.1°C | 47 | 7.3 | 12.312 h |
| November | 30.0°C24.8°C | 24.8°C | 157 | 19.3 | 12.512 h |
| December | 28.6°C24.7°C | 24.7°C | 266 | 26.9 | 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
September in nearby cities
- Selong in SeptemberIndonesia · 46 kmHigh 29.4°C · Low 21.7°C · 17 mm rain
- Klungkung in SeptemberIndonesia · 79 kmHigh 28.6°C · Low 22.8°C · 41 mm rain
- Ubud in SeptemberIndonesia · 94 kmHigh 27.8°C · Low 21.5°C · 50 mm rain
- Denpasar in SeptemberIndonesia · 99 kmHigh 26.4°C · Low 23.1°C · 39 mm rain
- Sukawati in SeptemberIndonesia · 118 kmHigh 27.3°C · Low 22.6°C · 45 mm rain
- Singaraja in SeptemberIndonesia · 125 kmHigh 29.6°C · Low 23.4°C · 11 mm rain
- Banjar, Indonesia in SeptemberIndonesia · 134 kmHigh 31.5°C · Low 24.1°C · 39 mm rain
- Negara in SeptemberIndonesia · 167 kmHigh 28.6°C · Low 23.6°C · 14 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 Mataram) is explained once on the Mataram year overview and on the Sources, method and limits page.