Climate averages 1991–2020
Cà Mau weather
in September.
A hot, very wet month: the 9th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Cà Mau: daytime highs average 29.9°C and nights cool to about 24.2°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 337 mm of rain on roughly 29 days, which makes September a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 11 min on an average September day.
The nearest other city in this atlas is Giá Rai (34 km away). In September its highs average 29.5°C, about as warm as Cà Mau, with 290 mm of rain.
Among the 136 cities listed in Vietnam, Cà Mau ranks joint 75th of 136 for the warmest September highs and 124th of 136 for the driest September (rainfall, lowest first). The mean September high of those 136 cities is 29.7°C; Cà Mau is 0.2°C warmer than that mean.
From September to October, average highs fall by 0.1°C to 29.8°C, and monthly rainfall rises from 337 mm to 406 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
Cà Mau climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.2°C22.7°C | 22.7°C | 33 | 5.9 | 11.712 h |
| February | 31.6°C23.1°C | 23.1°C | 19 | 3.4 | 11.812 h |
| March | 32.7°C24.1°C | 24.1°C | 59 | 8.8 | 12.112 h |
| April | 33.0°C24.8°C | 24.8°C | 119 | 16.6 | 12.312 h |
| May | 32.0°C25.2°C | 25.2°C | 257 | 26.9 | 12.513 h |
| June | 30.7°C24.8°C | 24.8°C | 288 | 28.4 | 12.613 h |
| July | 30.1°C24.5°C | 24.5°C | 300 | 29.6 | 12.613 h |
| August | 30.1°C24.5°C | 24.5°C | 286 | 29.4 | 12.412 h |
| September, selected | 29.9°C24.2°C | 24.2°C | 337 | 28.9 | 12.212 h |
| October | 29.8°C23.7°C | 23.7°C | 406 | 29.0 | 11.912 h |
| November | 29.8°C23.5°C | 23.5°C | 209 | 22.2 | 11.712 h |
| December | 29.4°C22.8°C | 22.8°C | 101 | 12.6 | 11.612 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
- Giá Rai in SeptemberVietnam · 34 kmHigh 29.5°C · Low 24.9°C · 290 mm rain
- Bạc Liêu in SeptemberVietnam · 64 kmHigh 29.4°C · Low 24.9°C · 269 mm rain
- Vĩnh Châu in SeptemberVietnam · 92 kmHigh 29.1°C · Low 25.2°C · 257 mm rain
- Rạch Giá in SeptemberVietnam · 93 kmHigh 29.0°C · Low 24.9°C · 352 mm rain
- Sóc Trăng in SeptemberVietnam · 101 kmHigh 29.8°C · Low 24.3°C · 278 mm rain
- Ngã Bảy in SeptemberVietnam · 102 kmHigh 29.9°C · Low 24.2°C · 293 mm rain
- Cờ Đỏ in SeptemberVietnam · 106 kmHigh 29.9°C · Low 24.5°C · 275 mm rain
- Phong Điền (Can Tho City), Vietnam in SeptemberVietnam · 107 kmHigh 29.9°C · Low 24.3°C · 263 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 Cà Mau) is explained once on the Cà Mau year overview and on the Sources, method and limits page.