Climate averages 1991–2020
Bukit Mertajam weather
in April.
A hot, very wet month: the 3rd warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a hot month in Bukit Mertajam: daytime highs average 30.2°C and nights cool to about 24.3°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 238 mm of rain on roughly 28 days, which makes April a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 14 min on an average April day.
The nearest other city in this atlas is Kulim (11 km away). In April its highs average 30.1°C, about as warm as Bukit Mertajam, with 238 mm of rain.
Among the 72 cities listed in Malaysia, Bukit Mertajam ranks joint 27th of 72 for the warmest April highs and joint 47th of 72 for the driest April (rainfall, lowest first). The mean April high of those 72 cities is 30.1°C; Bukit Mertajam is 0.1°C warmer than that mean.
From April to May, average highs fall by 0.1°C to 30.1°C, and monthly rainfall falls from 238 mm to 221 mm.
The annual picture
April 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
Bukit Mertajam climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.6°C23.0°C | 23.0°C | 163 | 20.3 | 11.812 h |
| February | 30.5°C23.3°C | 23.3°C | 133 | 17.7 | 11.912 h |
| March | 30.7°C24.0°C | 24.0°C | 198 | 24.0 | 12.112 h |
| April, selected | 30.2°C24.3°C | 24.3°C | 238 | 27.8 | 12.212 h |
| May | 30.1°C24.5°C | 24.5°C | 221 | 26.1 | 12.412 h |
| June | 30.1°C24.3°C | 24.3°C | 133 | 19.2 | 12.412 h |
| July | 30.0°C24.1°C | 24.1°C | 128 | 18.9 | 12.412 h |
| August | 30.0°C24.0°C | 24.0°C | 164 | 21.3 | 12.312 h |
| September | 29.4°C23.8°C | 23.8°C | 214 | 24.8 | 12.212 h |
| October | 28.8°C23.7°C | 23.7°C | 338 | 28.5 | 12.012 h |
| November | 28.8°C23.5°C | 23.5°C | 370 | 27.9 | 11.912 h |
| December | 28.9°C23.1°C | 23.1°C | 261 | 23.8 | 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
April in nearby cities
- Kulim in AprilMalaysia · 11 kmHigh 30.1°C · Low 23.7°C · 238 mm rain
- Butterworth in AprilMalaysia · 12 kmHigh 30.7°C · Low 24.8°C · 204 mm rain
- Val Dor in AprilMalaysia · 13 kmHigh 30.4°C · Low 24.4°C · 238 mm rain
- Tasek Glugor in AprilMalaysia · 14 kmHigh 30.3°C · Low 24.4°C · 217 mm rain
- Paya Terubong in AprilMalaysia · 21 kmHigh 29.1°C · Low 24.4°C · 206 mm rain
- Kampung Sungai Ara in AprilMalaysia · 22 kmHigh 29.7°C · Low 25.0°C · 206 mm rain
- Kota Kuala Muda in AprilMalaysia · 27 kmHigh 30.6°C · Low 25.1°C · 204 mm rain
- Sungai Petani in AprilMalaysia · 32 kmHigh 30.4°C · Low 24.6°C · 212 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 Bukit Mertajam) is explained once on the Bukit Mertajam year overview and on the Sources, method and limits page.
Kulim and Val Dor lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.