Climate averages 1991–2020
Binjai weather
in May.
A hot, very wet month: the 4th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Binjai: daytime highs average 30.3°C and nights cool to about 22.5°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 266 mm of rain on roughly 28 days, which makes May a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 17 min on an average May day.
The nearest other city in this atlas is Sunggal (15 km away). In May its highs average 30.3°C, about as warm as Binjai, with 266 mm of rain.
Among the 200 cities listed in Indonesia, Binjai ranks joint 14th of 200 for the warmest May highs and joint 187th of 200 for the driest May (rainfall, lowest first). The mean May high of those 200 cities is 29.2°C; Binjai is 1.1°C warmer than that mean.
From May to June, average highs rise by 0.2°C to 30.5°C, and monthly rainfall falls from 266 mm to 189 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
Binjai climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.3°C21.5°C | 21.5°C | 237 | 26.3 | 11.912 h |
| February | 29.0°C21.4°C | 21.4°C | 180 | 22.2 | 12.012 h |
| March | 29.7°C21.8°C | 21.8°C | 211 | 25.4 | 12.112 h |
| April | 29.8°C22.1°C | 22.1°C | 252 | 28.1 | 12.212 h |
| May, selected | 30.3°C22.5°C | 22.5°C | 266 | 27.9 | 12.312 h |
| June | 30.5°C22.3°C | 22.3°C | 189 | 24.3 | 12.312 h |
| July | 30.6°C22.0°C | 22.0°C | 186 | 24.9 | 12.312 h |
| August | 30.4°C22.0°C | 22.0°C | 213 | 26.8 | 12.212 h |
| September | 29.7°C21.9°C | 21.9°C | 306 | 28.6 | 12.112 h |
| October | 29.0°C21.7°C | 21.7°C | 338 | 29.6 | 12.012 h |
| November | 28.2°C21.7°C | 21.7°C | 358 | 28.8 | 12.012 h |
| December | 27.8°C21.7°C | 21.7°C | 345 | 28.7 | 11.912 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
- Sunggal in MayIndonesia · 15 kmHigh 30.3°C · Low 22.8°C · 266 mm rain
- Medan in MayIndonesia · 20 kmHigh 30.2°C · Low 23.2°C · 279 mm rain
- Belawan in MayIndonesia · 29 kmHigh 30.4°C · Low 23.9°C · 250 mm rain
- Percut in MayIndonesia · 42 kmHigh 30.1°C · Low 24.0°C · 250 mm rain
- Perbaungan in MayIndonesia · 52 kmHigh 30.0°C · Low 24.6°C · 182 mm rain
- Kabanjahe in MayIndonesia · 56 kmHigh 25.6°C · Low 17.9°C · 196 mm rain
- Tebingtinggi in MayIndonesia · 81 kmHigh 30.1°C · Low 24.1°C · 203 mm rain
- Pematangsiantar in MayIndonesia · 96 kmHigh 28.2°C · Low 21.3°C · 265 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 Binjai) is explained once on the Binjai year overview and on the Sources, method and limits page.
Sunggal lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.