Climate averages 1991–2020
Bukit Mertajam weather
in July.
A hot, wet month: the joint 6th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Bukit Mertajam: daytime highs average 30.0°C and nights cool to about 24.1°C. By daytime temperature it is the joint 6th warmest of the 12 months.
Expect about 128 mm of rain on roughly 19 days, which makes July a wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 24 min on an average July day.
The nearest other city in this atlas is Kulim (11 km away). In July its highs average 30.0°C, about as warm as Bukit Mertajam, with 128 mm of rain.
Among the 72 cities listed in Malaysia, Bukit Mertajam ranks joint 24th of 72 for the warmest July highs and joint 17th of 72 for the driest July (rainfall, lowest first). The mean July high of those 72 cities is 29.8°C; Bukit Mertajam is 0.3°C warmer than that mean.
From July to August, average highs fall by 0.1°C to 30.0°C, and monthly rainfall rises from 128 mm to 164 mm.
The annual picture
July 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 | 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, selected | 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
July in nearby cities
- Kulim in JulyMalaysia · 11 kmHigh 30.0°C · Low 23.5°C · 128 mm rain
- Butterworth in JulyMalaysia · 12 kmHigh 30.4°C · Low 24.5°C · 173 mm rain
- Val Dor in JulyMalaysia · 13 kmHigh 30.3°C · Low 24.1°C · 128 mm rain
- Tasek Glugor in JulyMalaysia · 14 kmHigh 30.0°C · Low 24.2°C · 148 mm rain
- Paya Terubong in JulyMalaysia · 21 kmHigh 28.8°C · Low 24.5°C · 164 mm rain
- Kampung Sungai Ara in JulyMalaysia · 22 kmHigh 29.5°C · Low 25.1°C · 164 mm rain
- Kota Kuala Muda in JulyMalaysia · 27 kmHigh 30.1°C · Low 24.9°C · 173 mm rain
- Sungai Petani in JulyMalaysia · 32 kmHigh 30.0°C · Low 24.4°C · 152 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.