Water temperature in De-Kastri
Sea surface temperature · updated today, Thursday, October 29, at 1:03 pm (GMT+10)- Today
- 41.2–44.2 °F
- Air today
- 18 / 26 °F
- Wed 4
- 42.9 °F
- Wetsuit
- 6/5 mm with hood, booties and gloves
Today the water in De-Kastri is 42.4 °F and ranges 41.2–44.2 °F through the day, with the air between 18 °F and 26 °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 De-Kastri (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 18.7 °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 De-Kastri is colder than normal for late October today (−2.5 °F).
- 31.2° 31°JanJ
- 31.0° 31°FebF
- 31.2° 31°MarM
- 32.5° 33°AprA
- 37.7° 38°MayM
- 46.2° 46°JunJ
- 55.5° 55°JulJ
- 60.7° 61°AugA
- 59.3° 59°SepS
- 49.9° 50°OctO
- 38.2° 38°NovN
- 32.3° 32°DecD
- Monthly normal
- Today
- Best time
In De-Kastri the water is cold all year: it is warmest in August (60.7 °F on average). For a long swim, wear a wetsuit.
The water is warmest in August (60.7 °F on average) and coldest in February (31.0 °F).
Monthly averages for 1991–2020 (NOAA OISST, from satellites and buoys; nearest data point 7.5 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 | 41.2–44.2 °F | 18 / 26 °F | 1.2 ft |
| Fri 30 | 40.6–41.0 °F | 18 / 32 °F | 2.1 ft |
| Sat 31 | 40.1–41.2 °F | 28 / 32 °F | 3.5 ft |
| Sun 1 | 40.1–41.2 °F | 17 / 28 °F | 3.0 ft |
| Mon 2 | 41.2–42.1 °F | 11 / 23 °F | 0.6 ft |
| Tue 3 | 42.1–42.8 °F | 10 / 21 °F | 0.3 ft |
| Wed 4 | 42.8–43.0 °F | 11 / 21 °F | 1.0 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 | 45.3 °F | 44.6–45.5 °F |
| Tue 27 | 45.3 °F | 45.1–45.3 °F |
| Mon 26 | 45.3 °F | 45.3–45.5 °F |
| Sun 25 | 45.3 °F | 45.0–45.5 °F |
| Sat 24 | 43.9 °F | 42.3–45.0 °F |
| Fri 23 | 41.7 °F | 41.4–42.3 °F |
| Thu 22 | 41.4 °F | 40.8–41.7 °F |
Show all 60 days
| Day | Water | Low / high |
|---|---|---|
| Wed 21 | 41.2 °F | 40.8–41.7 °F |
| Tue 20 | 41.5 °F | 41.2–42.4 °F |
| Mon 19 | 44.1 °F | 42.8–45.1 °F |
| Sun 18 | 46.6 °F | 45.3–47.1 °F |
| Sat 17 | 46.4 °F | 45.5–47.1 °F |
| Fri 16 | 45.1 °F | 44.4–45.5 °F |
| Thu 15 | 43.9 °F | 43.7–44.2 °F |
| Wed 14 | 44.8 °F | 44.2–45.5 °F |
| Tue 13 | 46.8 °F | 45.7–47.3 °F |
| Mon 12 | 46.0 °F | 45.5–46.4 °F |
| Sun 11 | 47.3 °F | 46.2–48.7 °F |
| Sat 10 | 48.7 °F | 48.2–49.5 °F |
| Fri 9 | 48.2 °F | 47.7–48.6 °F |
| Thu 8 | 48.7 °F | 47.5–51.3 °F |
| Wed 7 | 52.7 °F | 51.4–53.6 °F |
| Tue 6 | 53.8 °F | 53.6–54.0 °F |
| Mon 5 | 54.0 °F | 54.0–54.1 °F |
| Sun 4 | 54.3 °F | 54.1–54.5 °F |
| Sat 3 | 54.7 °F | 54.5–55.0 °F |
| Fri 2 | 55.4 °F | 55.2–55.6 °F |
| Thu 1 | 56.1 °F | 55.6–56.5 °F |
| Wed 30 | 56.5 °F | 56.3–56.8 °F |
| Tue 29 | 56.7 °F | 56.5–56.8 °F |
| Mon 28 | 56.7 °F | 56.3–57.0 °F |
| Sun 27 | 56.5 °F | 56.1–56.8 °F |
| Sat 26 | 56.5 °F | 56.1–56.8 °F |
| Fri 25 | 56.8 °F | 56.5–57.0 °F |
| Thu 24 | 57.6 °F | 57.0–58.1 °F |
| Wed 23 | 58.1 °F | 57.9–58.5 °F |
| Tue 22 | 58.5 °F | 58.3–58.6 °F |
| Mon 21 | 59.0 °F | 58.6–59.4 °F |
| Sun 20 | 59.4 °F | 59.2–59.5 °F |
| Sat 19 | 59.4 °F | 59.2–59.4 °F |
| Fri 18 | 59.5 °F | 59.4–59.5 °F |
| Thu 17 | 59.5 °F | 59.4–59.7 °F |
| Wed 16 | 59.9 °F | 59.5–60.3 °F |
| Tue 15 | 59.9 °F | 59.7–60.1 °F |
| Mon 14 | 60.3 °F | 60.1–60.4 °F |
| Sun 13 | 60.3 °F | 60.1–60.4 °F |
| Sat 12 | 60.3 °F | 59.9–60.8 °F |
| Fri 11 | 60.3 °F | 59.9–60.6 °F |
| Thu 10 | 60.4 °F | 60.3–60.6 °F |
| Wed 9 | 60.3 °F | 59.9–60.6 °F |
| Tue 8 | 60.4 °F | 60.1–61.5 °F |
| Mon 7 | 63.5 °F | 61.7–64.0 °F |
| Sun 6 | 64.0 °F | 63.7–64.4 °F |
| Sat 5 | 64.0 °F | 63.7–64.4 °F |
| Fri 4 | 64.6 °F | 64.0–65.3 °F |
| Thu 3 | 64.6 °F | 64.0–65.5 °F |
| Wed 2 | 64.0 °F | 63.5–64.8 °F |
| Tue 1 | 63.9 °F | 63.5–64.4 °F |
| Mon 31 | 63.7 °F | 63.5–64.0 °F |
| Sun 30 | 64.0 °F | 63.5–64.9 °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 De-KastriQuestions
What's the water temperature today in De-Kastri?
42.4 °F; through the day it ranges 41.2–44.2 °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, 6/5 mm with hood, booties and gloves (very cold: full kit only). It's a rough guide: it depends on the wind and each person.
How warm is the water in De-Kastri in October?
In October, the water in De-Kastri averages 49.9 °F (1991–2020). For a long swim: 6/5 mm with hood, booties and gloves (very cold: full kit only).
How warm is the water in De-Kastri in August?
In August, the water in De-Kastri averages 60.7 °F (1991–2020), the warmest of the year. For a long swim: 4/3 mm (cool).
When is the best time to swim in De-Kastri?
In De-Kastri the water is cold all year: it is warmest in August (60.7 °F on average). For a long swim, wear a wetsuit. The water is warmest in August (60.7 °F on average) and coldest in February (31.0 °F).
Is the water warmer or colder than normal?
The water off De-Kastri is colder than normal for late October today (−2.5 °F).
More about De-Kastri today
Water temperature near De-Kastri
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 6.4 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 1:03 pm (local time).
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