Climate averages 1991–2020
Ann weather
in September.
A hot, very wet month: the 7th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Ann: daytime highs average 29.1°C and nights cool to about 23.8°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 422 mm of rain on roughly 29 days, which makes September a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 16 min on an average September day.
The nearest other city in this atlas is Kyaukpyu (66 km away). In September its highs average 28.5°C, 0.6°C cooler than Ann, with 445 mm of rain.
Among the 49 cities listed in Myanmar, Ann ranks joint 26th of 49 for the warmest September highs and 42nd of 49 for the driest September (rainfall, lowest first). The mean September high of those 49 cities is 28.7°C; Ann is 0.3°C warmer than that mean.
From September to October, average highs rise by 1.0°C to 30.1°C, and monthly rainfall falls from 422 mm to 185 mm.
The annual picture
September 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
Ann climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.8°C14.4°C | 14.4°C | 5.5 | 0.6 | 11.111 h |
| February | 31.1°C16.0°C | 16.0°C | 3.5 | 0.4 | 11.511 h |
| March | 33.5°C19.7°C | 19.7°C | 5.9 | 1.2 | 12.012 h |
| April | 34.2°C23.2°C | 23.2°C | 23 | 4.3 | 12.613 h |
| May | 31.8°C24.6°C | 24.6°C | 271 | 21.5 | 13.113 h |
| June | 28.7°C24.4°C | 24.4°C | 764 | 29.5 | 13.313 h |
| July | 27.8°C24.1°C | 24.1°C | 761 | 30.7 | 13.213 h |
| August | 27.9°C24.0°C | 24.0°C | 637 | 30.7 | 12.813 h |
| September, selected | 29.1°C23.8°C | 23.8°C | 422 | 28.7 | 12.312 h |
| October | 30.1°C22.9°C | 22.9°C | 185 | 20.8 | 11.712 h |
| November | 30.1°C20.0°C | 20.0°C | 35 | 4.3 | 11.211 h |
| December | 29.0°C16.6°C | 16.6°C | 10 | 0.8 | 11.011 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
- Kyaukpyu in SeptemberMyanmar · 66 kmHigh 28.5°C · Low 25.6°C · 445 mm rain
- Magway in SeptemberMyanmar · 100 kmHigh 30.6°C · Low 24.6°C · 214 mm rain
- Yenangyaung in SeptemberMyanmar · 114 kmHigh 30.7°C · Low 24.9°C · 176 mm rain
- Sittwe in SeptemberMyanmar · 126 kmHigh 28.7°C · Low 25.5°C · 393 mm rain
- Thayetmyo in SeptemberMyanmar · 130 kmHigh 30.1°C · Low 24.4°C · 228 mm rain
- Chauk in SeptemberMyanmar · 147 kmHigh 30.8°C · Low 25.0°C · 192 mm rain
- Thandwe in SeptemberMyanmar · 152 kmHigh 28.3°C · Low 24.1°C · 477 mm rain
- Taungdwingyi in SeptemberMyanmar · 158 kmHigh 29.7°C · Low 23.7°C · 217 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 Ann) is explained once on the Ann year overview and on the Sources, method and limits page.