Climate averages 1991–2020
Butterworth weather
in January.
A hot, wet month: the 8th warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Butterworth: daytime highs average 29.8°C and nights cool to about 23.4°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 96 mm of rain on roughly 16 days, which makes January a wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 51 min on an average January day.
The nearest other city in this atlas is Paya Terubong (10 km away). In January its highs average 28.4°C, 1.5°C cooler than Butterworth, with 127 mm of rain.
Among the 72 cities listed in Malaysia, Butterworth ranks joint 7th of 72 for the warmest January highs and joint 4th of 72 for the driest January (rainfall, lowest first). The mean January high of those 72 cities is 28.9°C; Butterworth is 1.0°C warmer than that mean.
From January to February, average highs rise by 1.0°C to 30.8°C, and monthly rainfall falls from 96 mm to 90 mm.
The annual picture
January 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
Butterworth climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 29.8°C23.4°C | 23.4°C | 96 | 16.0 | 11.812 h |
| February | 30.8°C23.8°C | 23.8°C | 90 | 15.8 | 11.912 h |
| March | 31.2°C24.5°C | 24.5°C | 161 | 22.2 | 12.112 h |
| April | 30.7°C24.8°C | 24.8°C | 204 | 27.6 | 12.212 h |
| May | 30.4°C24.9°C | 24.9°C | 231 | 26.3 | 12.412 h |
| June | 30.5°C24.8°C | 24.8°C | 166 | 20.6 | 12.412 h |
| July | 30.4°C24.5°C | 24.5°C | 173 | 21.0 | 12.412 h |
| August | 30.3°C24.5°C | 24.5°C | 217 | 23.5 | 12.312 h |
| September | 29.7°C24.2°C | 24.2°C | 242 | 25.6 | 12.212 h |
| October | 29.1°C24.1°C | 24.1°C | 334 | 29.0 | 12.012 h |
| November | 29.0°C23.9°C | 23.9°C | 292 | 27.0 | 11.912 h |
| December | 29.1°C23.6°C | 23.6°C | 167 | 20.1 | 11.812 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
January in nearby cities
- Paya Terubong in JanuaryMalaysia · 10 kmHigh 28.4°C · Low 23.6°C · 127 mm rain
- Bukit Mertajam in JanuaryMalaysia · 12 kmHigh 29.6°C · Low 23.0°C · 163 mm rain
- Kampung Sungai Ara in JanuaryMalaysia · 13 kmHigh 28.9°C · Low 24.2°C · 127 mm rain
- Tasek Glugor in JanuaryMalaysia · 17 kmHigh 29.9°C · Low 23.0°C · 108 mm rain
- Kota Kuala Muda in JanuaryMalaysia · 21 kmHigh 30.3°C · Low 23.7°C · 96 mm rain
- Val Dor in JanuaryMalaysia · 22 kmHigh 29.6°C · Low 23.1°C · 163 mm rain
- Kulim in JanuaryMalaysia · 22 kmHigh 29.6°C · Low 22.5°C · 163 mm rain
- Sungai Petani in JanuaryMalaysia · 31 kmHigh 30.2°C · Low 23.1°C · 82 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 Butterworth) is explained once on the Butterworth year overview and on the Sources, method and limits page.
Kota Kuala Muda lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.