Donghae City climate
Donghae City (South Korea) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 14 °C57 °F, and about 1,329 mm52 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Donghae City climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 540 | 133 | 337 | 341.3 | 14 |
| Feb | 643 | 235 | 439 | 441.7 | 10 |
| Mar | 1050 | 541 | 745 | 532.1 | 3 |
| Apr | 1558 | 949 | 1254 | 853.3 | 0 |
| May | 1966 | 1457 | 1762 | 773.0 | 0 |
| Jun | 2373 | 1865 | 2169 | 1174.6 | 0 |
| Jul | 2678 | 2272 | 2475 | 29111 | 0 |
| Aug | 2780 | 2475 | 2577 | 2489.8 | 0 |
| Sep | 2373 | 2068 | 2171 | 1937.6 | 0 |
| Oct | 1966 | 1559 | 1763 | 923.6 | 0 |
| Nov | 1355 | 948 | 1152 | 602.4 | 0 |
| Dec | 744 | 337 | 541 | 341.3 | 10 |
| Year | 2780 | 133 | 1457 | 1,32952 | 38 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 75% | 58% | 2.3 | 9:50 |
| Feb | 71% | 60% | 3.0 | 10:45 |
| Mar | 69% | 60% | 4.1 | 11:51 |
| Apr | 71% | 60% | 4.9 | 13:07 |
| May | 75% | 64% | 5.4 | 14:10 |
| Jun | 80% | 70% | 5.2 | 14:44 |
| Jul | 85% | 75% | 4.5 | 14:31 |
| Aug | 84% | 70% | 4.4 | 13:36 |
| Sep | 78% | 67% | 3.9 | 12:22 |
| Oct | 71% | 55% | 3.3 | 11:09 |
| Nov | 72% | 54% | 2.4 | 10:05 |
| Dec | 76% | 55% | 2.1 | 9:35 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Donghae City is like
The warmest month is August, with an average high of 27 °C80 °F and a low of 24 °C75 °F. The coldest is January, when highs average 5 °C40 °F and lows 1 °C33 °F. Seasons are strongly marked: the warmest month is on average 22.5 °C40.6 °F warmer than the coldest.
It is wet, with about 1,329 mm52 in of precipitation per year. The wettest three-month stretch is July–September, which brings 55% of the annual total. The wettest month is July (291 mm11 in), the driest is December (34 mm1.3 in).
Relative humidity ranges from 69% in March to 85% in July. The clearest skies (lowest average cloud amount, 54%) are typical of November. Average wind speed near the ground ranges from 10 km/h (7 mph) in June to 21 km/h (13 mph) in December. Daylight lasts from about 9.6 hours in December to 14.7 hours in June.
A lasting snow cover is typical in December–February, when the average snow depth in the reanalysis exceeds 10 cm (deepest in January, about 16 cm).
Best time to visit Donghae City
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May and June and October: average highs of 19 °C66 °F to 23 °C73 °F with 77 mm3.0 in to 117 mm4.6 in of precipitation per month.
The most challenging month is July, which is very wet (291 mm11 in) and humid (85% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Donghae City
- Winter (December–February) — highs 540 to 7 °C44 °F, lows 133 to 3 °C37 °F, about 37 mm1.5 in of precipitation a month. Pack a warm coat, layers and closed shoes.
- Spring (March–May) — highs 1050 to 19 °C66 °F, lows 541 to 14 °C57 °F, about 72 mm2.8 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
- Summer (June–August) — highs 2373 to 27 °C80 °F, lows 1865 to 24 °C75 °F, about 219 mm8.6 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Autumn (September–November) — highs 1355 to 23 °C73 °F, lows 948 to 20 °C68 °F, about 115 mm4.5 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.
How Donghae City compares
Compared with Gangneung, about 31 km to the northwest, Donghae City is on average 1.2 °C2.2 °F warmer and receives 7% less precipitation (1,329 mm52 in vs 1,426 mm56 in). The difference is largest in January (2.5 °C4.6 °F warmer).
Of the 34 places in South Korea covered by World Climates, Donghae City is the 9th warmest by annual mean temperature and the 11th wettest by annual precipitation. See all of them on the South Korea climate page.
Places in other countries with the most similar temperature and rainfall pattern: Iwaki (Japan, Cfa), Utsunomiya (Japan, Cfa) and Mito (Japan, Cfa).
Nearby places
- Gangneung 31 km · 13 °C55 °F · 1,426 mm56 in
- Wŏnju 105 km · 11 °C52 °F · 1,309 mm52 in
- Andong 114 km · 12 °C53 °F · 1,159 mm46 in
- Chungju 122 km · 12 °C53 °F · 1,221 mm48 in
- Chuncheon 126 km · 11 °C51 °F · 1,290 mm51 in
- Sangju 151 km · 12 °C54 °F · 1,141 mm45 in
- Hanam 168 km · 11 °C52 °F · 1,276 mm50 in
- Pohang 170 km · 14 °C58 °F · 1,186 mm47 in
Frequently asked questions
What is the warmest month in Donghae City?
August is the warmest month in Donghae City, with an average high of 27 °C (80 °F) and an average low of 24 °C (75 °F).
What is the coldest month in Donghae City?
January is the coldest month, with an average high of 5 °C (40 °F) and an average low of 1 °C (33 °F).
When does it rain the most in Donghae City?
July is the wettest month with about 291 mm (11.5 in) of precipitation; December is the driest with about 34 mm (1.3 in).
What is the best time to visit Donghae City?
Judging by long-term averages, the most comfortable months are May and June and October.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 147 m, while Donghae City lies at about 24 m. Temperatures on this page were therefore adjusted by +0.8 °C1.4 °F using the standard lapse rate of 6.5 °C per 1,000 m.