Water temperature in Iwŏn-ŭp
Sea surface temperature · updated today, Thursday, October 29, at 2:58 pm (GMT+9)- Today
- 61.2–62.4 °F
- Air today
- 36 / 56 °F
- Wed 4
- 56.3 °F
- Wetsuit
- 4/3 mm
Today the water in Iwŏn-ŭp is 61.9 °F and ranges 61.2–62.4 °F through the day, with the air between 36 °F and 56 °F. It cools over the next few days: about 56.3 °F by Wednesday 4.
Measured by satellite
This is the temperature satellites measured 2 days ago in the water just below the surface, at the nearest point of sea to Iwŏn-ŭp (0.9 mi away), from NASA's MUR analysis, which sees the water in 1 km detail. It isn't a forecast: the big figure above is what a model gives for right now. On sunny afternoons the top of the water can be a little warmer.
Satellite: NASA MUR (JPL MUR MEaSUREs, PO.DAAC), doi:10.5067/GHGMR-4FJ04. Sources and licenses
The water over the next few days
- Today
- Fri 30
- Sat 31
- Sun 1
- Mon 2
- Tue 3
- Wed 4
- Thu 5
- Fri 6
- Sat 7
Water over the last 60 days
Over these days it has dropped 10.4 °F (from August 30).
Over the next few weeks the water looks a bit above normal (+1.4 °F), according to ECMWF 46-day.
Daily average and its range (low and high). The dotted line is the forecast.
Water temperature by month vs. normal
The water off Iwŏn-ŭp is warmer than normal for late October today (+3.0 °F).
- 42.5° 43°JanJ
- 40.1° 40°FebF
- 40.9° 41°MarM
- 45.9° 46°AprA
- 53.6° 54°MayM
- 62.3° 62°JunJ
- 69.5° 70°JulJ
- 73.3° 73°AugA
- 70.0° 70°SepS
- 63.5° 64°OctO
- 54.9° 55°NovN
- 47.0° 47°DecD
- Monthly normal
- Today
- Best time
The best time to swim in Iwŏn-ŭp is from July to September, when the water averages 69.5–73.3 °F.
The water is warmest in August (73.3 °F on average) and coldest in February (40.1 °F).
Monthly averages for 1991–2020 (NOAA OISST, from satellites and buoys; nearest data point 12 mi away). Right by the shore, the water can be a little colder or warmer. Sources and licenses
Water and air, day by day
| Day | Water | Air | Max wave |
|---|---|---|---|
| Today | 61.2–62.4 °F | 36 / 56 °F | 3.5 ft |
| Fri 30 | 58.5–61.0 °F | 39 / 61 °F | 3.1 ft |
| Sat 31 | 57.4–58.3 °F | 37 / 53 °F | 2.0 ft |
| Sun 1 | 57.0–57.6 °F | 36 / 48 °F | 1.8 ft |
| Mon 2 | 56.7–57.0 °F | 37 / 55 °F | 1.7 ft |
| Tue 3 | 56.1–57.0 °F | 31 / 59 °F | 3.2 ft |
| Wed 4 | 56.1–56.5 °F | 35 / 54 °F | 1.4 ft |
Which wetsuit to wear
| Water | Wetsuit | How it feels |
|---|---|---|
| < 52 °F | 6/5 mm with hood, booties and gloves | Very cold: full kit only |
| 52°–57 °F | 5/4 mm with booties | Cold: takes your breath away |
| 57°–63 °F | 4/3 mm | Cool |
| 63°–66 °F | 3/2 mm | Mild |
| 66°–72 °F | Shorty (springsuit) | Pleasant |
| 72°–75 °F | Rash guard or top | Very pleasant |
| > 75 °F | No wetsuit | Warm |
A rough guide: it depends on the wind, how long you stay in and each person.
Fish are cold-blooded: the water sets their activity. Sudden temperature changes usually put them off the bite; with steady water, activity is more regular.
Previous days
The water over the last 60 days.
| Day | Water | Low / high |
|---|---|---|
| Wed 28 | 62.6 °F | 62.4–62.8 °F |
| Tue 27 | 63.3 °F | 62.8–63.7 °F |
| Mon 26 | 63.7 °F | 63.5–63.9 °F |
| Sun 25 | 63.3 °F | 63.0–63.7 °F |
| Sat 24 | 63.1 °F | 63.1–63.3 °F |
| Fri 23 | 63.3 °F | 63.0–63.5 °F |
| Thu 22 | 63.9 °F | 63.5–64.2 °F |
Show all 60 days
| Day | Water | Low / high |
|---|---|---|
| Wed 21 | 64.4 °F | 64.2–64.6 °F |
| Tue 20 | 64.6 °F | 64.2–65.3 °F |
| Mon 19 | 64.4 °F | 64.4–64.6 °F |
| Sun 18 | 64.9 °F | 64.6–64.9 °F |
| Sat 17 | 64.9 °F | 64.9–65.1 °F |
| Fri 16 | 65.3 °F | 64.9–65.8 °F |
| Thu 15 | 65.5 °F | 65.1–65.8 °F |
| Wed 14 | 66.6 °F | 65.8–66.9 °F |
| Tue 13 | 67.1 °F | 66.9–67.3 °F |
| Mon 12 | 67.3 °F | 66.9–68.0 °F |
| Sun 11 | 66.9 °F | 66.6–67.3 °F |
| Sat 10 | 66.9 °F | 66.4–67.6 °F |
| Fri 9 | 66.9 °F | 66.4–67.6 °F |
| Thu 8 | 66.7 °F | 66.6–66.9 °F |
| Wed 7 | 66.7 °F | 66.6–67.1 °F |
| Tue 6 | 67.1 °F | 66.9–67.3 °F |
| Mon 5 | 67.5 °F | 67.1–67.6 °F |
| Sun 4 | 67.6 °F | 67.5–67.8 °F |
| Sat 3 | 68.0 °F | 67.8–68.4 °F |
| Fri 2 | 68.7 °F | 68.4–69.1 °F |
| Thu 1 | 69.8 °F | 69.1–70.3 °F |
| Wed 30 | 71.1 °F | 70.5–71.2 °F |
| Tue 29 | 71.4 °F | 71.2–71.6 °F |
| Mon 28 | 71.6 °F | 71.4–72.0 °F |
| Sun 27 | 71.8 °F | 71.4–72.1 °F |
| Sat 26 | 72.1 °F | 72.0–72.3 °F |
| Fri 25 | 72.3 °F | 72.1–72.7 °F |
| Thu 24 | 72.7 °F | 72.5–73.0 °F |
| Wed 23 | 72.9 °F | 72.7–73.2 °F |
| Tue 22 | 73.0 °F | 72.9–73.6 °F |
| Mon 21 | 73.0 °F | 72.7–73.2 °F |
| Sun 20 | 73.2 °F | 72.9–73.8 °F |
| Sat 19 | 73.6 °F | 73.0–73.9 °F |
| Fri 18 | 73.4 °F | 72.9–74.1 °F |
| Thu 17 | 73.2 °F | 72.5–73.8 °F |
| Wed 16 | 73.0 °F | 72.3–74.1 °F |
| Tue 15 | 72.5 °F | 72.1–73.0 °F |
| Mon 14 | 72.5 °F | 72.3–72.9 °F |
| Sun 13 | 72.7 °F | 72.5–73.0 °F |
| Sat 12 | 73.2 °F | 72.9–73.9 °F |
| Fri 11 | 73.4 °F | 73.2–73.6 °F |
| Thu 10 | 73.9 °F | 73.6–74.1 °F |
| Wed 9 | 74.5 °F | 74.1–74.7 °F |
| Tue 8 | 74.8 °F | 74.7–75.2 °F |
| Mon 7 | 75.4 °F | 75.0–76.3 °F |
| Sun 6 | 75.2 °F | 75.0–75.6 °F |
| Sat 5 | 75.4 °F | 74.8–75.9 °F |
| Fri 4 | 75.2 °F | 74.8–75.4 °F |
| Thu 3 | 75.2 °F | 74.7–75.9 °F |
| Wed 2 | 74.5 °F | 73.4–75.6 °F |
| Tue 1 | 73.8 °F | 73.2–74.3 °F |
| Mon 31 | 73.4 °F | 73.2–73.6 °F |
| Sun 30 | 73.0 °F | 72.3–73.9 °F |
It's the daily analysis from Météo-France / Copernicus Marine (satellites, buoys and model), not a buoy reading at this spot.
Questions about the water in Iwŏn-ŭpQuestions
What's the water temperature today in Iwŏn-ŭp?
61.9 °F; through the day it ranges 61.2–62.4 °F.
Will the water get warmer or colder?
It cools over the next few days: about 56.3 °F by Wednesday 4.
Which wetsuit do I need today?
With the water as it is today, 4/3 mm (cool). It's a rough guide: it depends on the wind and each person.
How warm is the water in Iwŏn-ŭp in October?
In October, the water in Iwŏn-ŭp averages 63.5 °F (1991–2020). For a long swim: 3/2 mm (mild).
How warm is the water in Iwŏn-ŭp in August?
In August, the water in Iwŏn-ŭp averages 73.3 °F (1991–2020), the warmest of the year. For a long swim: rash guard or top (very pleasant).
When is the best time to swim in Iwŏn-ŭp?
The best time to swim in Iwŏn-ŭp is from July to September, when the water averages 69.5–73.3 °F. The water is warmest in August (73.3 °F on average) and coldest in February (40.1 °F).
Is the water warmer or colder than normal?
The water off Iwŏn-ŭp is warmer than normal for late October today (+3.0 °F).
More about Iwŏn-ŭp today
Water temperature near Iwŏn-ŭp
- Sinp’o 60.8 °F · 31 mi
- Hongwŏn 60.8 °F · 42 mi
- Samho-rodongjagu 60.3 °F · 49 mi
- Hwadae 61.3 °F · 57 mi
- Hŭngnam 60.4 °F · 63 mi
- Hamhŭng 60.4 °F · 65 mi
Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.
Learn more
Sea surface temperature: Open-Meteo with Météo-France / Copernicus Marine, CC BY 4.0; grid point 8.1 mi away. Near the shore, in coves and estuaries, the water can be a little colder or warmer.
Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 2:58 pm (local time).
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