Climate averages 1991–2020

Sitiawan weather
in September.

A hot, very wet month: the joint 7th warmest and the 6th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 29.0°C Daytime mean, September

Average low 24.8°C Night-time mean, September

Rainfall 209 mm 24 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

September is a hot month in Sitiawan: daytime highs average 29.0°C and nights cool to about 24.8°C. By daytime temperature it is the joint 7th warmest of the 12 months.

Expect about 209 mm of rain on roughly 24 days, which makes September a very wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 09 min on an average September day.

The nearest other city in this atlas is Teluk Intan (42 km away). In September its highs average 30.0°C, 1.0°C warmer than Sitiawan, with 184 mm of rain.

Among the 72 cities listed in Malaysia, Sitiawan ranks joint 60th of 72 for the warmest September highs and 39th of 72 for the driest September (rainfall, lowest first). The mean September high of those 72 cities is 29.6°C; Sitiawan is 0.6°C cooler than that mean.

From September to October, average highs fall by 0.3°C to 28.6°C, and monthly rainfall rises from 209 mm to 282 mm.

The annual picture

September in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Sitiawan climate table

1991–2020

Monthly climate averages for Sitiawan, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	28.4°C24.2°C	24.2°C	211	25.8	11.912 h
February	29.0°C24.4°C	24.4°C	156	22.3	12.012 h
March	29.4°C24.9°C	24.9°C	213	27.2	12.112 h
April	29.5°C25.2°C	25.2°C	235	28.4	12.212 h
May	29.7°C25.4°C	25.4°C	204	25.9	12.312 h
June	29.6°C25.4°C	25.4°C	133	19.9	12.412 h
July	29.3°C25.1°C	25.1°C	136	20.8	12.312 h
August	29.2°C25.0°C	25.0°C	163	22.4	12.312 h
September, selected	29.0°C24.8°C	24.8°C	209	24.1	12.112 h
October	28.6°C24.7°C	24.7°C	282	27.6	12.012 h
November	28.4°C24.5°C	24.5°C	356	28.8	11.912 h
December	28.2°C24.4°C	24.4°C	297	27.8	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

September in nearby cities

Distance from Sitiawan

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 limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Sitiawan) is explained once on the Sitiawan year overview and on the Sources, method and limits page.