Climate averages 1991–2020
Petaling Jaya weather
in January.
A hot, very wet month: the 10th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Petaling Jaya: daytime highs average 29.2°C and nights cool to about 22.5°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 200 mm of rain on roughly 21 days, which makes January a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 58 min on an average January day.
The nearest other city in this atlas is Shah Alam (9 km away). In January its highs average 28.9°C, about as warm as Petaling Jaya, with 200 mm of rain.
Among the 72 cities listed in Malaysia, Petaling Jaya ranks joint 22nd of 72 for the warmest January highs and joint 37th of 72 for the driest January (rainfall, lowest first). The mean January high of those 72 cities is 28.9°C; Petaling Jaya is 0.3°C warmer than that mean.
From January to February, average highs rise by 0.8°C to 30.0°C, and monthly rainfall falls from 200 mm to 126 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
Petaling Jaya climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 29.2°C22.5°C | 22.5°C | 200 | 21.1 | 12.012 h |
| February | 30.0°C22.6°C | 22.6°C | 126 | 16.5 | 12.012 h |
| March | 30.3°C23.2°C | 23.2°C | 168 | 22.1 | 12.112 h |
| April | 30.1°C23.6°C | 23.6°C | 188 | 24.6 | 12.212 h |
| May | 30.1°C23.9°C | 23.9°C | 154 | 23.3 | 12.312 h |
| June | 30.2°C23.7°C | 23.7°C | 97 | 16.8 | 12.312 h |
| July | 30.1°C23.5°C | 23.5°C | 100 | 16.9 | 12.312 h |
| August | 30.1°C23.5°C | 23.5°C | 109 | 18.6 | 12.212 h |
| September | 29.9°C23.3°C | 23.3°C | 129 | 20.5 | 12.112 h |
| October | 29.6°C23.3°C | 23.3°C | 187 | 24.6 | 12.112 h |
| November | 28.9°C23.0°C | 23.0°C | 314 | 27.7 | 12.012 h |
| December | 28.7°C22.7°C | 22.7°C | 280 | 26.1 | 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
January in nearby cities
- Shah Alam in JanuaryMalaysia · 9 kmHigh 28.9°C · Low 22.7°C · 200 mm rain
- Kampung Baru Subang in JanuaryMalaysia · 9 kmHigh 29.1°C · Low 22.7°C · 223 mm rain
- Kuala Lumpur in JanuaryMalaysia · 10 kmHigh 29.3°C · Low 22.2°C · 201 mm rain
- Bukit Jalil in JanuaryMalaysia · 10 kmHigh 29.1°C · Low 22.0°C · 221 mm rain
- Puchong in JanuaryMalaysia · 12 kmHigh 29.2°C · Low 22.5°C · 200 mm rain
- Bukit Rahman Putra in JanuaryMalaysia · 13 kmHigh 29.1°C · Low 22.1°C · 223 mm rain
- Setapak in JanuaryMalaysia · 17 kmHigh 29.4°C · Low 22.1°C · 201 mm rain
- Selayang Baru Utara in JanuaryMalaysia · 18 kmHigh 29.5°C · Low 22.5°C · 201 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 Petaling Jaya) is explained once on the Petaling Jaya year overview and on the Sources, method and limits page.
Shah Alam, Puchong and Klang lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.