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Water temperature in St. Andrew's

Sea surface temperature · updated today, Thursday, October 29, at 5:27 am (GMT-2:30)
Water now 43.5 °F
Today
43.3–43.5 °F
Air today
41 / 47 °F
Wed 4
41.5 °F
Wetsuit
6/5 mm with hood, booties and gloves

Today the water in St. Andrew's is 43.5 °F and ranges 43.3–43.5 °F through the day, with the air between 41 °F and 47 °F. It cools over the next few days: about 41.5 °F by Wednesday 4.

The water over the next few days

Water over the last 60 days

Over these days it has dropped 21.6 °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 St. Andrew's is colder than normal for late October today (−3.0 °F).

In St. Andrew's the water is cold all year: it is warmest in August (62.1 °F on average). For a long swim, wear a wetsuit.

The water is warmest in August (62.1 °F on average) and coldest in March (32.0 °F).

Monthly averages for 1991–2020 (NOAA OISST, from satellites and buoys; nearest data point 7.8 mi away). Right by the shore, the water can be a little colder or warmer. Sources and licenses

Water and air, day by day

DayWaterAirMax wave
Today 43.3–43.5 °F 41 / 47 °F 6.2 ft
Fri 30 43.3–43.5 °F 41 / 51 °F 6.7 ft
Sat 31 43.2–43.3 °F 37 / 42 °F 4.4 ft
Sun 1 43.0–43.2 °F 36 / 40 °F 5.3 ft
Mon 2 42.8–43.0 °F 39 / 46 °F 8.5 ft
Tue 3 41.9–42.6 °F 37 / 40 °F 7.1 ft
Wed 4 41.2–41.9 °F 32 / 38 °F 6.3 ft

Which wetsuit to wear

WaterWetsuitHow it feels
< 52 °F6/5 mm with hood, booties and glovesVery cold: full kit only
52°–57 °F5/4 mm with bootiesCold: takes your breath away
57°–63 °F4/3 mmCool
63°–66 °F3/2 mmMild
66°–72 °FShorty (springsuit)Pleasant
72°–75 °FRash guard or topVery pleasant
> 75 °FNo wetsuitWarm

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.

DayWaterLow / high
Wed 28 43.9 °F43.5–44.2 °F
Tue 27 44.4 °F44.2–44.8 °F
Mon 26 44.8 °F44.6–44.8 °F
Sun 25 45.0 °F44.8–45.3 °F
Sat 24 43.7 °F42.8–44.8 °F
Fri 23 42.8 °F42.6–43.2 °F
Thu 22 42.8 °F42.4–43.0 °F
Show all 60 days
DayWaterLow / high
Wed 21 42.3 °F41.4–43.0 °F
Tue 20 41.0 °F40.6–41.4 °F
Mon 19 40.5 °F40.3–40.6 °F
Sun 18 40.8 °F40.5–41.2 °F
Sat 17 41.0 °F40.6–41.2 °F
Fri 16 41.0 °F40.8–41.2 °F
Thu 15 42.1 °F41.2–42.6 °F
Wed 14 41.5 °F40.8–42.3 °F
Tue 13 41.2 °F40.8–43.2 °F
Mon 12 45.3 °F43.5–46.0 °F
Sun 11 47.5 °F45.5–50.2 °F
Sat 10 51.6 °F50.4–52.2 °F
Fri 9 52.0 °F52.0–52.2 °F
Thu 8 52.2 °F52.0–52.2 °F
Wed 7 52.3 °F52.0–52.9 °F
Tue 6 53.2 °F52.9–53.2 °F
Mon 5 54.0 °F53.2–54.5 °F
Sun 4 54.7 °F54.3–55.0 °F
Sat 3 54.7 °F54.5–54.9 °F
Fri 2 54.3 °F54.3–54.5 °F
Thu 1 54.3 °F54.0–54.7 °F
Wed 30 54.0 °F53.2–54.5 °F
Tue 29 53.1 °F53.1–53.2 °F
Mon 28 52.5 °F52.2–52.9 °F
Sun 27 52.5 °F51.8–53.1 °F
Sat 26 50.4 °F49.6–51.8 °F
Fri 25 49.6 °F48.9–50.5 °F
Thu 24 48.2 °F47.5–49.3 °F
Wed 23 47.3 °F46.8–48.0 °F
Tue 22 49.6 °F48.0–50.2 °F
Mon 21 49.3 °F48.4–51.1 °F
Sun 20 52.3 °F51.4–52.9 °F
Sat 19 55.0 °F52.2–58.1 °F
Fri 18 59.0 °F58.3–59.2 °F
Thu 17 59.0 °F58.6–59.4 °F
Wed 16 58.6 °F58.1–59.0 °F
Tue 15 57.9 °F57.6–58.1 °F
Mon 14 57.4 °F57.4–57.6 °F
Sun 13 57.9 °F57.6–58.3 °F
Sat 12 59.4 °F58.5–60.3 °F
Fri 11 61.2 °F60.4–61.5 °F
Thu 10 61.7 °F61.5–61.9 °F
Wed 9 61.7 °F61.5–61.9 °F
Tue 8 61.7 °F61.7–61.9 °F
Mon 7 61.5 °F61.2–61.7 °F
Sun 6 60.4 °F60.1–61.0 °F
Sat 5 60.8 °F60.1–61.5 °F
Fri 4 61.9 °F61.7–62.1 °F
Thu 3 61.2 °F60.4–62.2 °F
Wed 2 60.4 °F59.9–61.2 °F
Tue 1 61.9 °F59.9–63.0 °F
Mon 31 64.8 °F63.3–65.3 °F
Sun 30 65.5 °F65.3–65.7 °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 St. Andrew'sQuestions

What's the water temperature today in St. Andrew's?

43.5 °F; through the day it ranges 43.3–43.5 °F.

Will the water get warmer or colder?

It cools over the next few days: about 41.5 °F by Wednesday 4.

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 St. Andrew's in October?

In October, the water in St. Andrew's averages 49.7 °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 St. Andrew's in August?

In August, the water in St. Andrew's averages 62.1 °F (1991–2020), the warmest of the year. For a long swim: 4/3 mm (cool).

When is the best time to swim in St. Andrew's?

In St. Andrew's the water is cold all year: it is warmest in August (62.1 °F on average). For a long swim, wear a wetsuit. The water is warmest in August (62.1 °F on average) and coldest in March (32.0 °F).

Is the water warmer or colder than normal?

The water off St. Andrew's is colder than normal for late October today (−3.0 °F).

More about St. Andrew's today

Water temperature near St. Andrew's

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 4.9 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 5:27 am (local time).

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