Climate averages 1991–2020
Semarang weather
in May.
A hot, wet month: the 7th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Semarang: daytime highs average 29.6°C and nights cool to about 23.3°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 102 mm of rain on roughly 16 days, which makes May a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 48 min on an average May day.
The nearest other city in this atlas is Ungaran (16 km away). In May its highs average 28.2°C, 1.5°C cooler than Semarang, with 126 mm of rain.
Among the 200 cities listed in Indonesia, Semarang ranks joint 92nd of 200 for the warmest May highs and 45th of 200 for the driest May (rainfall, lowest first). The mean May high of those 200 cities is 29.2°C; Semarang is 0.5°C warmer than that mean.
From May to June, average highs rise by 0.3°C to 29.9°C, and monthly rainfall falls from 102 mm to 60 mm.
The annual picture
May 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
Semarang climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.7°C23.5°C | 23.5°C | 391 | 29.9 | 12.512 h |
| February | 27.7°C23.5°C | 23.5°C | 356 | 27.4 | 12.312 h |
| March | 28.4°C23.4°C | 23.4°C | 345 | 29.3 | 12.112 h |
| April | 29.1°C23.4°C | 23.4°C | 237 | 25.9 | 12.012 h |
| May, selected | 29.6°C23.3°C | 23.3°C | 102 | 16.4 | 11.812 h |
| June | 29.9°C23.0°C | 23.0°C | 60 | 10.4 | 11.712 h |
| July | 30.4°C22.7°C | 22.7°C | 38 | 6.5 | 11.812 h |
| August | 31.1°C22.8°C | 22.8°C | 23 | 3.9 | 11.912 h |
| September | 31.7°C23.6°C | 23.6°C | 44 | 6.1 | 12.112 h |
| October | 31.3°C24.1°C | 24.1°C | 139 | 15.3 | 12.312 h |
| November | 29.7°C23.9°C | 23.9°C | 282 | 25.6 | 12.412 h |
| December | 28.4°C23.5°C | 23.5°C | 416 | 29.2 | 12.513 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
May in nearby cities
- Ungaran in MayIndonesia · 16 kmHigh 28.2°C · Low 21.4°C · 126 mm rain
- Salatiga in MayIndonesia · 39 kmHigh 27.9°C · Low 20.7°C · 126 mm rain
- Kudus in MayIndonesia · 51 kmHigh 30.8°C · Low 23.2°C · 129 mm rain
- Jepara in MayIndonesia · 52 kmHigh 30.0°C · Low 25.0°C · 126 mm rain
- Purwodadi in MayIndonesia · 56 kmHigh 30.5°C · Low 22.7°C · 104 mm rain
- Magelang in MayIndonesia · 58 kmHigh 27.8°C · Low 20.4°C · 165 mm rain
- Batang in MayIndonesia · 65 kmHigh 29.8°C · Low 25.5°C · 126 mm rain
- Muntilan in MayIndonesia · 67 kmHigh 28.1°C · Low 20.8°C · 165 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 Semarang) is explained once on the Semarang year overview and on the Sources, method and limits page.