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Geoje, Gyeongsangnam-do Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Geoje, Gyeongsangnam-do?
Geoje, Gyeongsangnam-do gets 2183 mm of precipitation a year over about 101 rainy days. August is the warmest month (average high 30°C) and January the coldest (average low 2°C).
Humid subtropical climate
Geoje, Gyeongsangnam-do has warm summers and chilly winters. Daytime highs range from about 9°C in January to 30°C in August. July is usually the wettest month. The most comfortable time to visit is typically April to June and September to November, when daytime highs sit near 22°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 3° | 11° |
| Spring | Mar–May | 9° | 18° |
| Summer | Jun–Aug | 22° | 28° |
| Autumn | Sep–Nov | 14° | 22° |
How much rain does Geoje get?
Geoje gets 2183 mm of precipitation in an average year, spread over about 101 days with measurable rain. That is fewer rainy days than 73% of Japan.
July is the wettest month, with 349 mm. December is the driest, with 65 mm. July has the most rainy days, about 13.
The longest dry spell in the last five years lasted 27 days, to August 2, 2026.
From October 2025 to September 2026 Geoje got 3152 mm of rain, against a normal of 2183 mm for those months. July 2026 had the most, with 1548 mm.
Geoje weather by month
Geoje weather in January
In January, Geoje averages a high of 9°C and a low of 2°C. It gets 77 mm of precipitation over about 7 rainy days. Estimated sunshine is 53% of daylight hours, derived from ERA5 cloud cover. The January record high is 19°C (2020) and the record low is -7°C (1970).
Geoje weather in February
In February, Geoje averages a high of 11°C and a low of 2°C. It gets 87 mm of precipitation over about 7 rainy days. Estimated sunshine is 46% of daylight hours, derived from ERA5 cloud cover. The February record high is 20°C (1979) and the record low is -7°C (1977).
Geoje weather in March
In March, Geoje averages a high of 14°C and a low of 6°C. It gets 153 mm of precipitation over about 8 rainy days. Estimated sunshine is 47% of daylight hours, derived from ERA5 cloud cover. The March record high is 23°C (1998) and the record low is -5°C (1977).
Geoje weather in April
In April, Geoje averages a high of 18°C and a low of 9°C. It gets 196 mm of precipitation over about 8 rainy days. Estimated sunshine is 45% of daylight hours, derived from ERA5 cloud cover. The April record high is 28°C (1983) and the record low is -1°C (1972). April is one of the most comfortable months to visit.
Geoje weather in May
In May, Geoje averages a high of 22°C and a low of 14°C. It gets 240 mm of precipitation over about 8 rainy days. Estimated sunshine is 42% of daylight hours, derived from ERA5 cloud cover. The May record high is 32°C (1979) and the record low is 6°C (1980). May is one of the most comfortable months to visit.
Geoje weather in June
In June, Geoje averages a high of 24°C and a low of 18°C. It gets 278 mm of precipitation over about 11 rainy days. Estimated sunshine is 33% of daylight hours, derived from ERA5 cloud cover. The June record high is 32°C (2025) and the record low is 9°C (1981). June is one of the most comfortable months to visit.
Geoje weather in July
In July, Geoje averages a high of 28°C and a low of 23°C. It gets 349 mm of precipitation over about 13 rainy days. Estimated sunshine is 28% of daylight hours, derived from ERA5 cloud cover. The July record high is 37°C (2018) and the record low is 14°C (2026).
Geoje weather in August
In August, Geoje averages a high of 30°C and a low of 24°C. It gets 304 mm of precipitation over about 11 rainy days. Estimated sunshine is 42% of daylight hours, derived from ERA5 cloud cover. The August record high is 37°C (2016) and the record low is 17°C (1974).
Geoje weather in September
In September, Geoje averages a high of 27°C and a low of 20°C. It gets 232 mm of precipitation over about 10 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The September record high is 33°C (1994) and the record low is 9°C (1987). September is one of the most comfortable months to visit.
Geoje weather in October
In October, Geoje averages a high of 22°C and a low of 15°C. It gets 106 mm of precipitation over about 5 rainy days. Estimated sunshine is 52% of daylight hours, derived from ERA5 cloud cover. The October record high is 28°C (1999) and the record low is 4°C (1970). October is one of the most comfortable months to visit.
Geoje weather in November
In November, Geoje averages a high of 17°C and a low of 9°C. It gets 97 mm of precipitation over about 7 rainy days. Estimated sunshine is 63% of daylight hours, derived from ERA5 cloud cover. The November record high is 27°C (1979) and the record low is -2°C (1970). November is one of the most comfortable months to visit.
Geoje weather in December
In December, Geoje averages a high of 12°C and a low of 4°C. It gets 65 mm of precipitation over about 7 rainy days. Estimated sunshine is 61% of daylight hours, derived from ERA5 cloud cover. The December record high is 22°C (2018) and the record low is -6°C (1976).
Sunshine, humidity and wind in Geoje
November is the sunniest month in Geoje, with estimated sunshine of 63% of daylight hours from ERA5 cloud cover. July is the cloudiest, at 28%. The annual cloud-cover estimate is 46% of daylight hours; it is not a measurement of sunshine duration. Geoje is sunnier than 99% of Japan.
Humidity peaks in July at 92% and is lowest in January at 61%.
Geoje has about 10 days a year above 32°C. Geoje is cooler than 71% of Japan.
First and last freeze in Geoje
The first fall freeze in Geoje typically comes around December 16, and the last spring freeze around March 2. That leaves a frost-free growing season of about 289 days.
Geoje weather records
These records cover IZUHARA during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Geoje station is 37°C, on July 26, 2018. The coldest is -7°C, on February 16, 1977.
The wettest day in the available station history brought 772 mm of precipitation, on July 1, 2026.
39 all-time records have been set at the station since 1970.
The best time to visit Geoje
The most comfortable time to visit is typically April to June and September to November, when daytime highs sit near 22°C.
Winter (December–February) is chilly, with average highs around 10°C and lows near 3°C.
Spring (March–May) is mild, with average highs around 18°C and lows near 10°C.
Summer (June–August) is warm, with average highs around 28°C and lows near 22°C. It can feel humid.
Autumn (September–November) is warm, with average highs around 22°C and lows near 15°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 2° | 9° | 77 mm | 7 | 61% | 53% | 19° | -7° |
| February | 2° | 11° | 87 mm | 7 | 63% | 46% | 20° | -7° |
| March | 6° | 14° | 153 mm | 8 | 69% | 47% | 23° | -5° |
| April | 9° | 18° | 196 mm | 8 | 74% | 45% | 28° | -1° |
| May | 14° | 22° | 240 mm | 8 | 82% | 42% | 32° | 6° |
| June | 18° | 24° | 278 mm | 11 | 89% | 33% | 32° | 9° |
| July | 23° | 28° | 349 mm | 13 | 92% | 28% | 37° | 14° |
| August | 24° | 30° | 304 mm | 11 | 86% | 42% | 37° | 17° |
| September | 20° | 27° | 232 mm | 10 | 78% | 38% | 33° | 9° |
| October | 15° | 22° | 106 mm | 5 | 66% | 52% | 28° | 4° |
| November | 9° | 17° | 97 mm | 7 | 63% | 63% | 27° | -2° |
| December | 4° | 12° | 65 mm | 7 | 61% | 61% | 22° | -6° |
Station: IZUHARA, 87 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Geoje climate questions
How much rain does Geoje get?
Geoje gets 2183 mm of precipitation in an average year, over about 101 rainy days.
What is the wettest month in Geoje?
July is the wettest month in Geoje, with 349 mm. December is the driest, with 65 mm.
How many rainy days does Geoje have a year?
Geoje has about 101 days with measurable rain in an average year. July has the most, about 13.
What is the hottest month in Geoje?
August is the warmest month in Geoje, with an average high of 30°C.
What is the coldest month in Geoje?
January is the coldest month in Geoje, with an average low of 2°C.
What is the record high temperature in Geoje?
Within the available 1970–2026 station history, the record high at the Geoje station is 37°C, set on July 26, 2018. The record low is -7°C, on February 16, 1977.
What is the sunniest month in Geoje?
November is the sunniest month in Geoje, with estimated sunshine of 63% of daylight hours from ERA5 cloud cover. July is the cloudiest.
When is the first frost in Geoje?
The first fall freeze in Geoje typically comes around December 16. The last spring freeze is around March 2.
What is the best time to visit Geoje?
The most comfortable time to visit is typically April to June and September to November, when daytime highs sit near 22°C.