Climate averages 1991–2020
Thanh Hóa weather
in May.
A hot, wet month: the 3rd warmest and the joint 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Thanh Hóa: daytime highs average 31.3°C and nights cool to about 25.3°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 167 mm of rain on roughly 15 days, which makes May a wet month (the joint 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 04 min on an average May day.
The nearest other city in this atlas is Sầm Sơn (16 km away). In May its highs average 30.3°C, 1.0°C cooler than Thanh Hóa, with 139 mm of rain.
Among the 136 cities listed in Vietnam, Thanh Hóa ranks joint 64th of 136 for the warmest May highs and 29th of 136 for the driest May (rainfall, lowest first). The mean May high of those 136 cities is 31.2°C; Thanh Hóa is 0.1°C warmer than that mean.
From May to June, average highs rise by 1.6°C to 32.8°C, and monthly rainfall stays at 167 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
Thanh Hóa climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 20.2°C15.0°C | 15.0°C | 26 | 5.4 | 11.111 h |
| February | 21.8°C16.4°C | 16.4°C | 15 | 3.6 | 11.511 h |
| March | 24.8°C19.1°C | 19.1°C | 33 | 5.5 | 12.012 h |
| April | 28.6°C22.5°C | 22.5°C | 57 | 7.2 | 12.613 h |
| May, selected | 31.3°C25.3°C | 25.3°C | 167 | 14.6 | 13.113 h |
| June | 32.8°C27.2°C | 27.2°C | 167 | 13.8 | 13.313 h |
| July | 32.4°C27.0°C | 27.0°C | 206 | 16.3 | 13.213 h |
| August | 31.2°C26.1°C | 26.1°C | 309 | 21.7 | 12.813 h |
| September | 29.8°C24.8°C | 24.8°C | 289 | 20.6 | 12.312 h |
| October | 27.6°C22.5°C | 22.5°C | 180 | 15.1 | 11.712 h |
| November | 24.9°C19.3°C | 19.3°C | 58 | 8.3 | 11.211 h |
| December | 21.3°C15.8°C | 15.8°C | 26 | 5.1 | 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
May in nearby cities
- Sầm Sơn in MayVietnam · 16 kmHigh 30.3°C · Low 25.5°C · 139 mm rain
- Nghi Sơn in MayVietnam · 53 kmHigh 31.4°C · Low 25.2°C · 115 mm rain
- Hoa Lư in MayVietnam · 56 kmHigh 31.2°C · Low 24.7°C · 185 mm rain
- Hoàng Mai in MayVietnam · 59 kmHigh 32.4°C · Low 25.6°C · 115 mm rain
- Nam Định in MayVietnam · 83 kmHigh 30.9°C · Low 25.0°C · 196 mm rain
- Phủ Lý in MayVietnam · 84 kmHigh 31.2°C · Low 24.4°C · 194 mm rain
- Hưng Yên in MayVietnam · 99 kmHigh 31.1°C · Low 24.6°C · 206 mm rain
- Hòa Bình in MayVietnam · 122 kmHigh 31.6°C · Low 24.7°C · 241 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 Thanh Hóa) is explained once on the Thanh Hóa year overview and on the Sources, method and limits page.