Water temperature in Long Harbour-Mount Arlington Heights
Sea surface temperature · updated today, Thursday, October 29, at 2:31 am (GMT-2:30)- Today
- 45.9–46.0 °F
- Air today
- 38 / 47 °F
- Wed 4
- 45.1 °F
- Wetsuit
- 6/5 mm with hood, booties and gloves
Today the water in Long Harbour-Mount Arlington Heights is 45.9 °F and ranges 45.9–46.0 °F through the day, with the air between 38 °F and 47 °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 Long Harbour-Mount Arlington Heights (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 20.3 °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 Long Harbour-Mount Arlington Heights is colder than normal for late October today (−2.0 °F).
- 35.1° 35°JanJ
- 32.9° 33°FebF
- 32.7° 33°MarM
- 34.1° 34°AprA
- 38.2° 38°MayM
- 44.7° 45°JunJ
- 52.7° 53°JulJ
- 59.0° 59°AugA
- 56.1° 56°SepS
- 50.5° 51°OctO
- 44.7° 45°NovN
- 39.1° 39°DecD
- Monthly normal
- Today
- Best time
In Long Harbour-Mount Arlington Heights the water is cold all year: it is warmest in August (59.0 °F on average). For a long swim, wear a wetsuit.
The water is warmest in August (59.0 °F on average) and coldest in March (32.7 °F).
Monthly averages for 1991–2020 (NOAA OISST, from satellites and buoys; nearest data point 5.3 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 | 45.9–46.0 °F | 38 / 47 °F | 2.8 ft |
| Fri 30 | 45.9–46.0 °F | 44 / 51 °F | 3.9 ft |
| Sat 31 | 46.0–46.2 °F | 36 / 48 °F | 2.4 ft |
| Sun 1 | 45.9–46.2 °F | 34 / 40 °F | 2.5 ft |
| Mon 2 | 45.7–45.7 °F | 39 / 47 °F | 4.1 ft |
| Tue 3 | 45.3–45.7 °F | 31 / 46 °F | 3.2 ft |
| Wed 4 | 45.1–45.1 °F | 29 / 40 °F | 1.6 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 | 46.2 °F | 46.0–46.4 °F |
| Tue 27 | 46.6 °F | 46.6–46.8 °F |
| Mon 26 | 45.9 °F | 44.8–46.6 °F |
| Sun 25 | 43.0 °F | 41.9–44.6 °F |
| Sat 24 | 45.1 °F | 43.0–47.7 °F |
| Fri 23 | 49.5 °F | 47.8–50.2 °F |
| Thu 22 | 50.2 °F | 50.2–50.4 °F |
Show all 60 days
| Day | Water | Low / high |
|---|---|---|
| Wed 21 | 50.5 °F | 50.4–50.5 °F |
| Tue 20 | 50.5 °F | 50.5–50.7 °F |
| Mon 19 | 50.9 °F | 50.7–50.9 °F |
| Sun 18 | 51.3 °F | 51.1–51.4 °F |
| Sat 17 | 51.6 °F | 51.4–51.6 °F |
| Fri 16 | 51.8 °F | 51.6–52.0 °F |
| Thu 15 | 52.2 °F | 52.2–52.3 °F |
| Wed 14 | 52.5 °F | 52.3–52.7 °F |
| Tue 13 | 52.9 °F | 52.7–53.2 °F |
| Mon 12 | 53.2 °F | 53.2–53.4 °F |
| Sun 11 | 53.4 °F | 53.4–53.6 °F |
| Sat 10 | 53.6 °F | 53.6–53.8 °F |
| Fri 9 | 53.8 °F | 53.6–53.8 °F |
| Thu 8 | 53.8 °F | 53.6–53.8 °F |
| Wed 7 | 53.8 °F | 53.8–54.1 °F |
| Tue 6 | 54.3 °F | 54.1–54.5 °F |
| Mon 5 | 54.5 °F | 54.5–54.9 °F |
| Sun 4 | 54.9 °F | 54.7–55.4 °F |
| Sat 3 | 55.0 °F | 54.9–55.2 °F |
| Fri 2 | 55.2 °F | 55.2–55.4 °F |
| Thu 1 | 55.4 °F | 55.4–55.8 °F |
| Wed 30 | 55.6 °F | 55.2–56.1 °F |
| Tue 29 | 55.4 °F | 55.2–55.6 °F |
| Mon 28 | 55.8 °F | 55.4–56.1 °F |
| Sun 27 | 56.3 °F | 55.8–57.2 °F |
| Sat 26 | 56.3 °F | 55.9–56.8 °F |
| Fri 25 | 56.7 °F | 55.9–57.6 °F |
| Thu 24 | 56.1 °F | 55.9–56.3 °F |
| Wed 23 | 56.7 °F | 56.3–56.8 °F |
| Tue 22 | 57.2 °F | 57.0–57.4 °F |
| Mon 21 | 57.2 °F | 57.0–57.4 °F |
| Sun 20 | 57.7 °F | 57.4–58.1 °F |
| Sat 19 | 58.5 °F | 58.1–58.8 °F |
| Fri 18 | 59.0 °F | 58.8–59.0 °F |
| Thu 17 | 58.8 °F | 58.5–59.4 °F |
| Wed 16 | 58.6 °F | 58.5–59.0 °F |
| Tue 15 | 58.8 °F | 58.5–59.4 °F |
| Mon 14 | 58.6 °F | 58.5–58.6 °F |
| Sun 13 | 58.6 °F | 58.5–58.8 °F |
| Sat 12 | 59.2 °F | 58.8–59.2 °F |
| Fri 11 | 58.6 °F | 57.9–59.0 °F |
| Thu 10 | 57.2 °F | 56.7–57.9 °F |
| Wed 9 | 58.3 °F | 56.7–59.4 °F |
| Tue 8 | 59.0 °F | 58.5–59.5 °F |
| Mon 7 | 53.8 °F | 47.7–58.5 °F |
| Sun 6 | 50.7 °F | 47.7–59.2 °F |
| Sat 5 | 64.2 °F | 60.3–65.5 °F |
| Fri 4 | 65.7 °F | 65.5–65.8 °F |
| Thu 3 | 66.2 °F | 65.7–66.9 °F |
| Wed 2 | 66.4 °F | 66.0–66.6 °F |
| Tue 1 | 66.0 °F | 65.8–66.4 °F |
| Mon 31 | 66.6 °F | 66.4–66.7 °F |
| Sun 30 | 66.6 °F | 66.4–66.7 °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 Long Harbour-Mount Arlington HeightsQuestions
What's the water temperature today in Long Harbour-Mount Arlington Heights?
45.9 °F; through the day it ranges 45.9–46.0 °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 Long Harbour-Mount Arlington Heights in October?
In October, the water in Long Harbour-Mount Arlington Heights averages 50.5 °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 Long Harbour-Mount Arlington Heights in August?
In August, the water in Long Harbour-Mount Arlington Heights averages 59.0 °F (1991–2020), the warmest of the year. For a long swim: 4/3 mm (cool).
When is the best time to swim in Long Harbour-Mount Arlington Heights?
In Long Harbour-Mount Arlington Heights the water is cold all year: it is warmest in August (59.0 °F on average). For a long swim, wear a wetsuit. The water is warmest in August (59.0 °F on average) and coldest in March (32.7 °F).
Is the water warmer or colder than normal?
The water off Long Harbour-Mount Arlington Heights is colder than normal for late October today (−2.0 °F).
More about Long Harbour-Mount Arlington Heights today
Water temperature near Long Harbour-Mount Arlington Heights
- Argentia 46.2 °F · 11 mi
- South Dildo 47.5 °F · 15 mi
- Bellevue 47.3 °F · 15 mi
- Southern Harbour 45.9 °F · 20 mi
- Colinet 45.7 °F · 21 mi
- Green's Harbour 47.5 °F · 21 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 2.1 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 2:31 am (local time).
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