Climate averages 1991–2020
Thốt Nốt weather
in May.
A hot, very wet month: the 3rd warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Thốt Nốt: daytime highs average 32.0°C and nights cool to about 25.4°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 185 mm of rain on roughly 25 days, which makes May a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 35 min on an average May day.
The nearest other city in this atlas is Lai Vung (7 km away). In May its highs average 32.1°C, about as warm as Thốt Nốt, with 185 mm of rain.
Among the 136 cities listed in Vietnam, Thốt Nốt ranks joint 38th of 136 for the warmest May highs and joint 42nd of 136 for the driest May (rainfall, lowest first). The mean May high of those 136 cities is 31.2°C; Thốt Nốt is 0.8°C warmer than that mean.
From May to June, average highs fall by 1.6°C to 30.4°C, and monthly rainfall rises from 185 mm to 220 mm.
The annual picture
May 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
Thốt Nốt climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.9°C22.1°C | 22.1°C | 27 | 4.6 | 11.612 h |
| February | 31.4°C22.6°C | 22.6°C | 12 | 1.9 | 11.812 h |
| March | 33.2°C24.0°C | 24.0°C | 36 | 5.8 | 12.112 h |
| April | 33.6°C25.1°C | 25.1°C | 82 | 12.4 | 12.312 h |
| May, selected | 32.0°C25.4°C | 25.4°C | 185 | 24.8 | 12.613 h |
| June | 30.4°C25.0°C | 25.0°C | 220 | 26.6 | 12.713 h |
| July | 30.0°C24.7°C | 24.7°C | 225 | 27.7 | 12.713 h |
| August | 30.1°C24.7°C | 24.7°C | 229 | 28.5 | 12.512 h |
| September | 30.2°C24.4°C | 24.4°C | 265 | 28.4 | 12.212 h |
| October | 30.3°C23.8°C | 23.8°C | 289 | 27.3 | 11.912 h |
| November | 30.4°C23.5°C | 23.5°C | 139 | 17.1 | 11.712 h |
| December | 29.8°C22.6°C | 22.6°C | 63 | 9.5 | 11.512 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
May in nearby cities
- Lai Vung in MayVietnam · 7 kmHigh 32.1°C · Low 25.4°C · 185 mm rain
- Vĩnh Thạnh in MayVietnam · 16 kmHigh 31.9°C · Low 25.3°C · 185 mm rain
- Long Xuyên in MayVietnam · 17 kmHigh 32.0°C · Low 25.5°C · 175 mm rain
- Ô Môn in MayVietnam · 21 kmHigh 31.9°C · Low 25.2°C · 207 mm rain
- Quận Đức Thịnh in MayVietnam · 23 kmHigh 32.2°C · Low 25.4°C · 196 mm rain
- Cờ Đỏ in MayVietnam · 23 kmHigh 31.8°C · Low 25.3°C · 207 mm rain
- Cao Lãnh in MayVietnam · 24 kmHigh 32.2°C · Low 25.5°C · 179 mm rain
- Sa Dec in MayVietnam · 24 kmHigh 32.2°C · Low 25.4°C · 196 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 Thốt Nốt) is explained once on the Thốt Nốt year overview and on the Sources, method and limits page.
Vĩnh Thạnh and Lai Vung lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.