Climate averages 1991–2020
Petaling Jaya weather
in December.
A hot, very wet month: the coolest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Petaling Jaya: daytime highs average 28.7°C and nights cool to about 22.7°C. By daytime temperature it is the coolest month of the year.
Expect about 280 mm of rain on roughly 26 days, which makes December a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 57 min on an average December day.
The nearest other city in this atlas is Shah Alam (9 km away). In December its highs average 28.5°C, about as warm as Petaling Jaya, with 280 mm of rain.
Among the 72 cities listed in Malaysia, Petaling Jaya ranks joint 24th of 72 for the warmest December highs and joint 37th of 72 for the driest December (rainfall, lowest first). The mean December high of those 72 cities is 28.5°C; Petaling Jaya is 0.2°C warmer than that mean.
From December to January, average highs rise by 0.5°C to 29.2°C, and monthly rainfall falls from 280 mm to 200 mm.
The annual picture
December 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 | 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, selected | 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
December in nearby cities
- Shah Alam in DecemberMalaysia · 9 kmHigh 28.5°C · Low 23.0°C · 280 mm rain
- Kampung Baru Subang in DecemberMalaysia · 9 kmHigh 28.7°C · Low 23.0°C · 300 mm rain
- Kuala Lumpur in DecemberMalaysia · 10 kmHigh 28.7°C · Low 22.4°C · 275 mm rain
- Bukit Jalil in DecemberMalaysia · 10 kmHigh 28.5°C · Low 22.3°C · 312 mm rain
- Puchong in DecemberMalaysia · 12 kmHigh 28.7°C · Low 22.9°C · 280 mm rain
- Bukit Rahman Putra in DecemberMalaysia · 13 kmHigh 28.7°C · Low 22.5°C · 300 mm rain
- Setapak in DecemberMalaysia · 17 kmHigh 28.9°C · Low 22.4°C · 275 mm rain
- Selayang Baru Utara in DecemberMalaysia · 18 kmHigh 29.0°C · Low 22.8°C · 275 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.