Climate averages 1991–2020

Heho weather
in September.

A warm, very wet month: the joint 6th warmest and the 9th driest of the year.

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

Average high 24.7°C Daytime mean, September

Average low 18.5°C Night-time mean, September

Rainfall 185 mm 27 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

September is a warm month in Heho: daytime highs average 24.7°C and nights cool to about 18.5°C. By daytime temperature it is the joint 6th warmest of the 12 months.

Expect about 185 mm of rain on roughly 27 days, which makes September a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 17 min on an average September day.

The nearest other city in this atlas is Yawnghwe (14 km away). In September its highs average 26.6°C, 1.8°C warmer than Heho, with 159 mm of rain.

Among the 49 cities listed in Myanmar, Heho ranks 47th of 49 for the warmest September highs and joint 6th of 49 for the driest September (rainfall, lowest first). The mean September high of those 49 cities is 28.7°C; Heho is 4.0°C cooler than that mean.

From September to October, average highs stay level at 24.7°C, and monthly rainfall falls from 185 mm to 143 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

Heho climate table

1991–2020

Monthly climate averages for Heho, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	22.5°C11.1°C	11.1°C	13	1.4	11.011 h
February	24.9°C12.6°C	12.6°C	6.0	0.9	11.511 h
March	28.1°C15.0°C	15.0°C	11	1.7	12.012 h
April	29.6°C17.7°C	17.7°C	41	6.3	12.613 h
May	27.3°C18.8°C	18.8°C	182	20.7	13.113 h
June	24.9°C19.3°C	19.3°C	206	27.9	13.413 h
July	24.0°C19.1°C	19.1°C	213	29.5	13.313 h
August	24.1°C19.0°C	19.0°C	228	29.7	12.813 h
September, selected	24.7°C18.5°C	18.5°C	185	27.2	12.312 h
October	24.7°C17.1°C	17.1°C	143	22.7	11.712 h
November	23.6°C14.5°C	14.5°C	54	8.4	11.211 h
December	22.2°C12.0°C	12.0°C	16	2.9	10.911 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 Heho

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 Heho) is explained once on the Heho year overview and on the Sources, method and limits page.