Water temperature in Minami-Sōma
Sea surface temperature · updated today, Thursday, October 29, at 4:12 pm (GMT+9)- Today
- 66.9–67.1 °F
- Air today
- 47 / 58 °F
- Wed 4
- 66.8 °F
- Wetsuit
- Shorty (springsuit)
Today the water in Minami-Sōma is 66.9 °F and ranges 66.9–67.1 °F through the day, with the air between 47 °F and 58 °F. It stays steady over the next few days.
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 Minami-Sōma (2.8 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.
Big gap with the model, which gives 66.9 °F right now (3.2 °F lower). The forecast is a calculation and this is a measurement: the water is probably warmer than the model says.
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 9.5 °F (from August 30).
Daily average and its range (low and high). The dotted line is the forecast.
Water temperature by month vs. normal
The water off Minami-Sōma is warmer than normal for late October today (+2.6 °F).
- 53.6° 54°JanJ
- 49.9° 50°FebF
- 49.1° 49°MarM
- 51.7° 52°AprA
- 57.0° 57°MayM
- 63.8° 64°JunJ
- 69.4° 69°JulJ
- 74.1° 74°AugA
- 72.5° 72°SepS
- 67.1° 67°OctO
- 62.6° 63°NovN
- 58.1° 58°DecD
- Monthly normal
- Today
- Best time
The best time to swim in Minami-Sōma is from July to September, when the water averages 69.4–74.1 °F.
The water is warmest in August (74.1 °F on average) and coldest in March (49.1 °F).
Monthly averages for 1991–2020 (NOAA OISST, from satellites and buoys; nearest data point 7.1 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 | 66.9–67.1 °F | 47 / 58 °F | 4.3 ft |
| Fri 30 | 66.9–67.3 °F | 57 / 65 °F | 6.6 ft |
| Sat 31 | 67.1–67.6 °F | 54 / 69 °F | 6.5 ft |
| Sun 1 | 66.7–67.3 °F | 51 / 60 °F | 5.8 ft |
| Mon 2 | 66.7–66.7 °F | 56 / 62 °F | 5.1 ft |
| Tue 3 | 66.7–66.9 °F | 53 / 63 °F | 6.1 ft |
| Wed 4 | 66.7–66.9 °F | 51 / 60 °F | 4.3 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 | 67.5 °F | 67.1–67.8 °F |
| Tue 27 | 67.8 °F | 67.8–68.0 °F |
| Mon 26 | 68.0 °F | 68.0–68.0 °F |
| Sun 25 | 68.2 °F | 68.0–68.2 °F |
| Sat 24 | 68.2 °F | 68.2–68.2 °F |
| Fri 23 | 68.4 °F | 68.4–68.5 °F |
| Thu 22 | 68.7 °F | 68.5–68.9 °F |
Show all 60 days
| Day | Water | Low / high |
|---|---|---|
| Wed 21 | 68.9 °F | 68.7–69.1 °F |
| Tue 20 | 69.1 °F | 68.9–69.1 °F |
| Mon 19 | 69.1 °F | 69.1–69.1 °F |
| Sun 18 | 69.3 °F | 69.1–69.4 °F |
| Sat 17 | 69.4 °F | 69.3–69.6 °F |
| Fri 16 | 69.8 °F | 69.4–70.3 °F |
| Thu 15 | 69.8 °F | 69.6–69.8 °F |
| Wed 14 | 70.5 °F | 69.8–71.1 °F |
| Tue 13 | 71.2 °F | 71.1–71.4 °F |
| Mon 12 | 71.1 °F | 71.1–71.2 °F |
| Sun 11 | 71.2 °F | 71.1–71.6 °F |
| Sat 10 | 71.2 °F | 71.1–71.6 °F |
| Fri 9 | 71.2 °F | 71.1–71.6 °F |
| Thu 8 | 71.2 °F | 71.1–71.6 °F |
| Wed 7 | 71.4 °F | 71.2–71.6 °F |
| Tue 6 | 71.8 °F | 71.6–72.0 °F |
| Mon 5 | 72.0 °F | 71.6–72.0 °F |
| Sun 4 | 72.1 °F | 72.0–72.1 °F |
| Sat 3 | 72.3 °F | 72.1–72.5 °F |
| Fri 2 | 72.7 °F | 72.3–73.0 °F |
| Thu 1 | 72.7 °F | 72.5–73.2 °F |
| Wed 30 | 72.7 °F | 72.5–72.9 °F |
| Tue 29 | 72.7 °F | 72.5–72.9 °F |
| Mon 28 | 72.9 °F | 72.9–73.0 °F |
| Sun 27 | 73.0 °F | 72.9–73.2 °F |
| Sat 26 | 73.0 °F | 72.9–73.4 °F |
| Fri 25 | 73.6 °F | 73.2–74.1 °F |
| Thu 24 | 73.6 °F | 73.2–74.3 °F |
| Wed 23 | 73.2 °F | 72.9–73.8 °F |
| Tue 22 | 73.2 °F | 72.9–73.9 °F |
| Mon 21 | 72.9 °F | 72.9–73.0 °F |
| Sun 20 | 73.2 °F | 73.0–73.2 °F |
| Sat 19 | 73.4 °F | 73.2–73.6 °F |
| Fri 18 | 73.8 °F | 73.6–74.1 °F |
| Thu 17 | 74.3 °F | 74.1–74.3 °F |
| Wed 16 | 74.8 °F | 74.3–75.4 °F |
| Tue 15 | 75.6 °F | 75.4–75.9 °F |
| Mon 14 | 75.7 °F | 75.2–76.1 °F |
| Sun 13 | 75.4 °F | 75.2–75.7 °F |
| Sat 12 | 75.4 °F | 75.2–75.7 °F |
| Fri 11 | 75.6 °F | 75.4–75.7 °F |
| Thu 10 | 75.7 °F | 75.7–75.9 °F |
| Wed 9 | 75.9 °F | 75.7–76.3 °F |
| Tue 8 | 75.9 °F | 75.7–76.3 °F |
| Mon 7 | 75.7 °F | 75.7–75.9 °F |
| Sun 6 | 76.1 °F | 75.9–76.3 °F |
| Sat 5 | 76.5 °F | 76.3–76.6 °F |
| Fri 4 | 76.6 °F | 76.5–76.8 °F |
| Thu 3 | 77.0 °F | 76.8–77.4 °F |
| Wed 2 | 76.8 °F | 76.3–77.4 °F |
| Tue 1 | 76.5 °F | 76.3–76.5 °F |
| Mon 31 | 76.6 °F | 76.6–76.8 °F |
| Sun 30 | 77.0 °F | 76.8–77.2 °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 Minami-SōmaQuestions
What's the water temperature today in Minami-Sōma?
66.9 °F; through the day it ranges 66.9–67.1 °F.
Will the water get warmer or colder?
It stays steady over the next few days.
Which wetsuit do I need today?
With the water as it is today, shorty (springsuit) (pleasant). It's a rough guide: it depends on the wind and each person.
How warm is the water in Minami-Sōma in October?
In October, the water in Minami-Sōma averages 67.1 °F (1991–2020). For a long swim: shorty (springsuit) (pleasant).
How warm is the water in Minami-Sōma in August?
In August, the water in Minami-Sōma averages 74.1 °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 Minami-Sōma?
The best time to swim in Minami-Sōma is from July to September, when the water averages 69.4–74.1 °F. The water is warmest in August (74.1 °F on average) and coldest in March (49.1 °F).
Is the water warmer or colder than normal?
The water off Minami-Sōma is warmer than normal for late October today (+2.6 °F).
More about Minami-Sōma today
Water temperature near Minami-Sōma
- Namie 68.2 °F · 10 mi
- Yachigoya 66.7 °F · 18 mi
- Tomioka 68.7 °F · 21 mi
- Shōbudahama 67.1 °F · 46 mi
- Higashimatsushima 66.4 °F · 55 mi
- Kitaibaraki 69.8 °F · 60 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 1.1 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 4:12 pm (local time).
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