Climate averages 1991–2020
Yeosu weather
in April.
A mild, wet month: the 7th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a mild month in Yeosu: daytime highs average 15.6°C and nights cool to about 9.5°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 134 mm of rain on roughly 9 days, which makes April a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 02 min on an average April day.
The nearest other city in this atlas is Gwangyang (20 km away). In April its highs average 17.7°C, 2.1°C warmer than Yeosu, with 127 mm of rain.
Among the 79 cities listed in South Korea, Yeosu ranks 65th of 79 for the warmest April highs and 79th of 79 for the driest April (rainfall, lowest first). The mean April high of those 79 cities is 16.9°C; Yeosu is 1.3°C cooler than that mean.
From April to May, average highs rise by 4.1°C to 19.7°C, and monthly rainfall rises from 134 mm to 147 mm.
The annual picture
April 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, selected | 15.6°C9.5°C | 9.5°C | 134 | 8.5 | 13.013 h |
| May | 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
April in nearby cities
- Gwangyang in AprilSouth Korea · 20 kmHigh 17.7°C · Low 8.2°C · 127 mm rain
- Kwangyang in AprilSouth Korea · 25 kmHigh 18.0°C · Low 8.3°C · 120 mm rain
- Suncheon in AprilSouth Korea · 26 kmHigh 18.4°C · Low 8.0°C · 120 mm rain
- Chinju in AprilSouth Korea · 62 kmHigh 18.5°C · Low 7.1°C · 111 mm rain
- Tongyeong in AprilSouth Korea · 71 kmHigh 16.2°C · Low 9.9°C · 133 mm rain
- Nangen in AprilSouth Korea · 76 kmHigh 18.2°C · Low 6.6°C · 92 mm rain
- Gwangju in AprilSouth Korea · 81 kmHigh 18.0°C · Low 6.3°C · 88 mm rain
- Masan in AprilSouth Korea · 86 kmHigh 18.0°C · Low 6.5°C · 85 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.