Seogwipo weather in August

In August, Seogwipo has daytime highs averaging 29 °C, nights around 25 °C, with 18 wet days, and a sea temperature of 27 °C. Figures are 1991–2020 climate normals.

  1. Jan 6°
  2. Feb 7°
  3. Mar 10°
  4. Apr 14°
  5. May 18°
  6. Jun 22°
  7. Jul 26°
  8. Aug 27°
  9. Sep 24°
  10. Oct 19°
  11. Nov 13°
  12. Dec 8°

Daily temperatures through August

21° 27° 33° 18152229
Daily high Daily low Day of month on the horizontal axis. Highs peak at 30.3 °C and lows bottom out at 23.7 °C.

How August develops

Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.

Days Avg high Avg low Chance of rain
1–10 August 30.0 °C 25.8 °C 56 %
11–20 August 29.6 °C 25.4 °C 54 %
21–31 August 28.6 °C 24.4 °C 58 %
0% 50% 100% 1 5 10 15 20 25 30
Chance of a wet day (over 1 mm) by date in August. Wettest date over the 30 years: August 24, at 73 %. Single dates are noisy — read the shape, not the spikes.

What to expect

Measure Typical August Share of the month
Days above 25 °C 31 of 31 99 %
Days above 30 °C 12 of 31 38 %
Days below 0 °C 0 of 31 0 %
Days with more than 1 mm rain 18 of 31 57 %

Conditions in August

MeasureAverage
Mean temperature 27 °C
Record high (1991–2020) 35 °C
Record low (1991–2020) 19 °C
Relative humidity 85 %
Wind speed 17 km/h
Cloud cover 64 %

August compared with the months around it

Month Avg high Rainfall Cloud
June 24.9 °C 251 mm 76 %
July 28.5 °C 248 mm 73 %
August 29.4 °C 270 mm 64 %
September 25.9 °C 197 mm 59 %
October 21.2 °C 94 mm 48 %

See all twelve months for Seogwipo

QuestionsAugust in Seogwipo, answered

How warm is Seogwipo in August?

Daily highs average 29 °C and nights fall to about 25 °C, a spread of 4.2 °C between afternoon and dawn. That makes August the 1st warmest month of the year here.

Does it rain much in Seogwipo in August?

August averages 270 mm of rain, spread over about 18 of the 31 days — 57 % of the month. Cloud cover averages 64 % of the sky.

Is the sea warm enough to swim in August?

The sea averages 27 °C off Seogwipo in August. Most people find water below 20 °C bracing and above 25 °C comfortable for a long swim; this figure is a monthly surface average, so a sheltered bay on a still afternoon can be warmer.

How long are the days in August?

Seogwipo averages 13 hours between sunrise and sunset in August. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.