Climate averages 1991–2020
Yeosu weather
in May.
A mild, wet month: the 6th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Yeosu: daytime highs average 19.7°C and nights cool to about 14.4°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 147 mm of rain on roughly 8 days, which makes May a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 58 min on an average May day.
The nearest other city in this atlas is Gwangyang (20 km away). In May its highs average 22.2°C, 2.5°C warmer than Yeosu, with 143 mm of rain.
Among the 79 cities listed in South Korea, Yeosu ranks 72nd of 79 for the warmest May highs and 79th of 79 for the driest May (rainfall, lowest first). The mean May high of those 79 cities is 21.9°C; Yeosu is 2.2°C cooler than that mean.
From May to June, average highs rise by 3.0°C to 22.8°C, and monthly rainfall rises from 147 mm to 194 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
Yeosu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.8°C-0.1°C | -0.1°C | 34 | 4.2 | 10.110 h |
| February | 7.6°C1.0°C | 1.0°C | 48 | 4.9 | 10.911 h |
| March | 11.2°C4.6°C | 4.6°C | 92 | 7.4 | 11.912 h |
| April | 15.6°C9.5°C | 9.5°C | 134 | 8.5 | 13.013 h |
| May, selected | 19.7°C14.4°C | 14.4°C | 147 | 8.4 | 14.014 h |
| June | 22.8°C18.6°C | 18.6°C | 194 | 9.4 | 14.414 h |
| July | 26.0°C22.7°C | 22.7°C | 268 | 13.6 | 14.214 h |
| August | 27.5°C23.9°C | 23.9°C | 224 | 12.6 | 13.513 h |
| September | 24.5°C20.1°C | 20.1°C | 160 | 8.9 | 12.412 h |
| October | 19.9°C14.4°C | 14.4°C | 71 | 4.7 | 11.311 h |
| November | 13.8°C7.9°C | 7.9°C | 50 | 5.4 | 10.410 h |
| December | 7.9°C2.1°C | 2.1°C | 31 | 3.9 | 9.910 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
- Gwangyang in MaySouth Korea · 20 kmHigh 22.2°C · Low 13.6°C · 143 mm rain
- Kwangyang in MaySouth Korea · 25 kmHigh 22.6°C · Low 13.7°C · 138 mm rain
- Suncheon in MaySouth Korea · 26 kmHigh 23.1°C · Low 13.5°C · 138 mm rain
- Chinju in MaySouth Korea · 62 kmHigh 23.3°C · Low 12.7°C · 118 mm rain
- Tongyeong in MaySouth Korea · 71 kmHigh 20.3°C · Low 14.6°C · 140 mm rain
- Nangen in MaySouth Korea · 76 kmHigh 23.2°C · Low 12.3°C · 102 mm rain
- Gwangju in MaySouth Korea · 81 kmHigh 23.0°C · Low 11.9°C · 99 mm rain
- Masan in MaySouth Korea · 86 kmHigh 23.0°C · Low 12.0°C · 97 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 Yeosu) is explained once on the Yeosu year overview and on the Sources, method and limits page.