Water temperature in Monbetsu-honchō
Sea surface temperature · updated today, Thursday, October 29, at 11:10 am (GMT+9)- Today
- 54.9–55.2 °F
- Air today
- 32 / 51 °F
- Wed 4
- 53.8 °F
- Wetsuit
- 5/4 mm with booties
Today the water in Monbetsu-honchō is 54.9 °F and ranges 54.9–55.2 °F through the day, with the air between 32 °F and 51 °F. It cools over the next few days: about 53.8 °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 Monbetsu-honchō (0.7 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 16.7 °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 Monbetsu-honchō is colder than normal for late October today (−3.8 °F).
- 42.9° 43°JanJ
- 38.2° 38°FebF
- 37.7° 38°MarM
- 40.4° 40°AprA
- 46.1° 46°MayM
- 54.5° 54°JunJ
- 62.1° 62°JulJ
- 67.9° 68°AugA
- 67.6° 68°SepS
- 61.7° 62°OctO
- 55.3° 55°NovN
- 49.5° 50°DecD
- Monthly normal
- Today
- Best time
The best time to swim in Monbetsu-honchō is from August to September, when the water averages 67.6–67.9 °F.
The water is warmest in August (67.9 °F on average) and coldest in March (37.7 °F).
Monthly averages for 1991–2020 (NOAA OISST, from satellites and buoys; nearest data point 9.4 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 | 54.9–55.2 °F | 32 / 51 °F | 4.9 ft |
| Fri 30 | 54.7–55.0 °F | 50 / 60 °F | 5.2 ft |
| Sat 31 | 54.7–55.2 °F | 41 / 59 °F | 4.1 ft |
| Sun 1 | 54.1–54.7 °F | 34 / 45 °F | 4.5 ft |
| Mon 2 | 54.0–54.1 °F | 33 / 51 °F | 2.8 ft |
| Tue 3 | 53.8–54.0 °F | 35 / 49 °F | 3.6 ft |
| Wed 4 | 53.8–53.8 °F | 35 / 46 °F | 3.0 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 | 56.1 °F | 55.2–56.7 °F |
| Tue 27 | 56.8 °F | 56.7–56.8 °F |
| Mon 26 | 57.2 °F | 56.8–57.6 °F |
| Sun 25 | 57.9 °F | 57.6–58.1 °F |
| Sat 24 | 57.9 °F | 57.7–57.9 °F |
| Fri 23 | 58.3 °F | 57.9–58.5 °F |
| Thu 22 | 59.2 °F | 58.5–59.7 °F |
Show all 60 days
| Day | Water | Low / high |
|---|---|---|
| Wed 21 | 59.5 °F | 59.2–59.9 °F |
| Tue 20 | 59.5 °F | 59.4–59.7 °F |
| Mon 19 | 59.7 °F | 59.5–59.7 °F |
| Sun 18 | 59.9 °F | 59.5–60.1 °F |
| Sat 17 | 61.2 °F | 60.1–61.9 °F |
| Fri 16 | 62.2 °F | 61.9–62.6 °F |
| Thu 15 | 63.3 °F | 62.8–63.5 °F |
| Wed 14 | 63.7 °F | 63.5–64.0 °F |
| Tue 13 | 63.7 °F | 63.5–63.9 °F |
| Mon 12 | 63.9 °F | 63.7–64.2 °F |
| Sun 11 | 64.2 °F | 63.9–64.6 °F |
| Sat 10 | 64.0 °F | 63.7–64.6 °F |
| Fri 9 | 63.7 °F | 63.5–64.0 °F |
| Thu 8 | 63.7 °F | 63.7–63.9 °F |
| Wed 7 | 63.7 °F | 63.1–64.0 °F |
| Tue 6 | 63.7 °F | 63.5–63.9 °F |
| Mon 5 | 64.0 °F | 63.5–64.9 °F |
| Sun 4 | 65.1 °F | 64.8–65.7 °F |
| Sat 3 | 65.3 °F | 64.9–65.7 °F |
| Fri 2 | 66.7 °F | 65.3–67.8 °F |
| Thu 1 | 68.2 °F | 67.8–68.2 °F |
| Wed 30 | 68.4 °F | 68.2–68.5 °F |
| Tue 29 | 69.1 °F | 68.5–69.4 °F |
| Mon 28 | 69.4 °F | 69.3–69.6 °F |
| Sun 27 | 68.9 °F | 68.7–69.1 °F |
| Sat 26 | 68.7 °F | 68.5–69.3 °F |
| Fri 25 | 69.1 °F | 68.7–69.4 °F |
| Thu 24 | 70.0 °F | 69.6–70.2 °F |
| Wed 23 | 70.0 °F | 69.8–70.2 °F |
| Tue 22 | 70.9 °F | 70.2–71.4 °F |
| Mon 21 | 71.6 °F | 71.1–72.3 °F |
| Sun 20 | 70.9 °F | 70.2–71.4 °F |
| Sat 19 | 70.0 °F | 69.8–70.0 °F |
| Fri 18 | 70.2 °F | 70.0–70.7 °F |
| Thu 17 | 70.2 °F | 70.0–70.7 °F |
| Wed 16 | 70.2 °F | 69.8–70.3 °F |
| Tue 15 | 70.3 °F | 70.2–70.5 °F |
| Mon 14 | 70.5 °F | 70.3–70.9 °F |
| Sun 13 | 70.5 °F | 70.3–70.7 °F |
| Sat 12 | 70.3 °F | 70.0–70.9 °F |
| Fri 11 | 70.2 °F | 70.0–70.3 °F |
| Thu 10 | 70.2 °F | 70.0–70.7 °F |
| Wed 9 | 70.2 °F | 70.0–70.5 °F |
| Tue 8 | 70.3 °F | 69.8–71.1 °F |
| Mon 7 | 70.2 °F | 69.8–70.3 °F |
| Sun 6 | 70.3 °F | 69.8–71.1 °F |
| Sat 5 | 70.0 °F | 69.6–70.5 °F |
| Fri 4 | 69.6 °F | 69.4–70.0 °F |
| Thu 3 | 69.4 °F | 69.4–69.6 °F |
| Wed 2 | 69.6 °F | 69.4–70.0 °F |
| Tue 1 | 70.7 °F | 70.2–71.1 °F |
| Mon 31 | 71.8 °F | 71.2–72.5 °F |
| Sun 30 | 72.9 °F | 72.5–73.2 °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 Monbetsu-honchōQuestions
What's the water temperature today in Monbetsu-honchō?
54.9 °F; through the day it ranges 54.9–55.2 °F.
Will the water get warmer or colder?
It cools over the next few days: about 53.8 °F by Wednesday 4.
Which wetsuit do I need today?
With the water as it is today, 5/4 mm with booties (cold: takes your breath away). It's a rough guide: it depends on the wind and each person.
How warm is the water in Monbetsu-honchō in October?
In October, the water in Monbetsu-honchō averages 61.7 °F (1991–2020). For a long swim: 4/3 mm (cool).
How warm is the water in Monbetsu-honchō in August?
In August, the water in Monbetsu-honchō averages 67.9 °F (1991–2020), the warmest of the year. For a long swim: shorty (springsuit) (pleasant).
When is the best time to swim in Monbetsu-honchō?
The best time to swim in Monbetsu-honchō is from August to September, when the water averages 67.6–67.9 °F. The water is warmest in August (67.9 °F on average) and coldest in March (37.7 °F).
Is the water warmer or colder than normal?
The water off Monbetsu-honchō is colder than normal for late October today (−3.8 °F).
More about Monbetsu-honchō today
Water temperature near Monbetsu-honchō
- Niikappu 55.0 °F · 15 mi
- Tomakomai 55.4 °F · 26 mi
- Shiraoi 55.9 °F · 37 mi
- Urakawa 55.6 °F · 43 mi
- Honchō 55.9 °F · 49 mi
- Muroran 55.0 °F · 56 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 4.6 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 11:10 am (local time).
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