Water temperature in Dehiwala-Mount Lavinia
Sea surface temperature · updated today, Thursday, October 29, at 1:48 pm (GMT+5:30)- Today
- 84.7–84.9 °F
- Air today
- 76 / 82 °F
- Wed 4
- 86.3 °F
- Wetsuit
- No wetsuit
Today the water in Dehiwala-Mount Lavinia is 84.9 °F and ranges 84.7–84.9 °F through the day, with the air between 76 °F and 82 °F. It warms over the next few days: about 86.3 °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 Dehiwala-Mount Lavinia (1.5 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 risen 1.3 °F (from August 30).
Over the next few weeks the water looks a bit above normal (+1.1 °F), according to ECMWF 46-day.
Daily average and its range (low and high). The dotted line is the forecast.
Water temperature by month vs. normal
The water off Dehiwala-Mount Lavinia is warmer than normal for late October today (+1.8 °F).
- 82.0° 82°JanJ
- 82.7° 83°FebF
- 84.4° 84°MarM
- 85.6° 86°AprA
- 84.7° 85°MayM
- 83.0° 83°JunJ
- 81.7° 82°JulJ
- 81.4° 81°AugA
- 82.0° 82°SepS
- 82.8° 83°OctO
- 83.4° 83°NovN
- 82.8° 83°DecD
- Monthly normal
- Today
In Dehiwala-Mount Lavinia the water is pleasant year-round: 81.4–85.6 °F on average, depending on the month.
The water is warmest in April (85.6 °F on average) and coldest in August (81.4 °F).
Monthly averages for 1991–2020 (NOAA OISST, from satellites and buoys; nearest data point 2.4 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 | 84.7–84.9 °F | 76 / 82 °F | 4.3 ft |
| Fri 30 | 84.7–85.3 °F | 74 / 86 °F | 3.5 ft |
| Sat 31 | 84.9–86.0 °F | 73 / 87 °F | 3.1 ft |
| Sun 1 | 84.9–86.4 °F | 72 / 85 °F | 2.4 ft |
| Mon 2 | 85.1–86.2 °F | 73 / 86 °F | 2.4 ft |
| Tue 3 | 85.5–86.7 °F | 73 / 85 °F | 2.8 ft |
| Wed 4 | 85.6–86.9 °F | 73 / 87 °F | 2.8 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 | 84.9 °F | 84.7–85.1 °F |
| Tue 27 | 85.1 °F | 84.9–85.5 °F |
| Mon 26 | 85.1 °F | 84.9–85.3 °F |
| Sun 25 | 85.5 °F | 85.3–85.5 °F |
| Sat 24 | 85.5 °F | 85.3–85.8 °F |
| Fri 23 | 85.5 °F | 85.3–85.5 °F |
| Thu 22 | 85.8 °F | 85.5–86.0 °F |
Show all 60 days
| Day | Water | Low / high |
|---|---|---|
| Wed 21 | 86.4 °F | 86.0–86.5 °F |
| Tue 20 | 86.7 °F | 86.2–87.1 °F |
| Mon 19 | 86.5 °F | 86.0–86.9 °F |
| Sun 18 | 86.4 °F | 85.5–87.3 °F |
| Sat 17 | 86.0 °F | 85.6–86.5 °F |
| Fri 16 | 85.8 °F | 85.6–86.2 °F |
| Thu 15 | 86.0 °F | 85.8–86.2 °F |
| Wed 14 | 86.2 °F | 85.5–86.5 °F |
| Tue 13 | 86.2 °F | 85.5–86.7 °F |
| Mon 12 | 86.0 °F | 85.1–86.9 °F |
| Sun 11 | 85.8 °F | 85.1–86.4 °F |
| Sat 10 | 85.8 °F | 85.1–86.7 °F |
| Fri 9 | 85.6 °F | 84.7–86.4 °F |
| Thu 8 | 85.5 °F | 84.9–85.8 °F |
| Wed 7 | 85.5 °F | 84.9–86.2 °F |
| Tue 6 | 85.6 °F | 84.7–86.5 °F |
| Mon 5 | 85.1 °F | 84.4–85.6 °F |
| Sun 4 | 85.1 °F | 84.4–85.6 °F |
| Sat 3 | 85.3 °F | 84.2–86.2 °F |
| Fri 2 | 85.1 °F | 84.2–85.8 °F |
| Thu 1 | 84.7 °F | 84.0–85.1 °F |
| Wed 30 | 84.6 °F | 84.2–84.7 °F |
| Tue 29 | 84.4 °F | 84.0–84.9 °F |
| Mon 28 | 84.0 °F | 83.8–84.4 °F |
| Sun 27 | 84.0 °F | 83.5–84.4 °F |
| Sat 26 | 83.7 °F | 83.5–83.8 °F |
| Fri 25 | 83.7 °F | 83.7–83.8 °F |
| Thu 24 | 83.8 °F | 83.7–83.8 °F |
| Wed 23 | 83.8 °F | 83.7–84.0 °F |
| Tue 22 | 84.0 °F | 83.8–84.0 °F |
| Mon 21 | 84.0 °F | 84.0–84.2 °F |
| Sun 20 | 84.0 °F | 84.0–84.2 °F |
| Sat 19 | 84.2 °F | 83.8–84.4 °F |
| Fri 18 | 84.2 °F | 84.0–84.4 °F |
| Thu 17 | 84.6 °F | 84.2–84.7 °F |
| Wed 16 | 84.9 °F | 84.6–85.1 °F |
| Tue 15 | 84.9 °F | 84.7–85.1 °F |
| Mon 14 | 84.9 °F | 84.6–85.3 °F |
| Sun 13 | 84.9 °F | 84.7–85.1 °F |
| Sat 12 | 85.3 °F | 84.9–85.5 °F |
| Fri 11 | 85.3 °F | 84.9–85.5 °F |
| Thu 10 | 85.1 °F | 84.7–85.5 °F |
| Wed 9 | 84.9 °F | 84.6–85.1 °F |
| Tue 8 | 84.7 °F | 84.7–84.9 °F |
| Mon 7 | 84.9 °F | 84.6–85.3 °F |
| Sun 6 | 84.7 °F | 84.4–85.1 °F |
| Sat 5 | 84.7 °F | 84.4–85.1 °F |
| Fri 4 | 84.6 °F | 84.2–84.7 °F |
| Thu 3 | 84.4 °F | 84.0–84.6 °F |
| Wed 2 | 84.2 °F | 83.7–84.6 °F |
| Tue 1 | 83.8 °F | 83.7–84.0 °F |
| Mon 31 | 83.8 °F | 83.5–84.0 °F |
| Sun 30 | 83.7 °F | 83.3–84.0 °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 Dehiwala-Mount LaviniaQuestions
What's the water temperature today in Dehiwala-Mount Lavinia?
84.9 °F; through the day it ranges 84.7–84.9 °F.
Will the water get warmer or colder?
It warms over the next few days: about 86.3 °F by Wednesday 4.
Which wetsuit do I need today?
With the water as it is today, no wetsuit (warm). It's a rough guide: it depends on the wind and each person.
How warm is the water in Dehiwala-Mount Lavinia in October?
In October, the water in Dehiwala-Mount Lavinia averages 82.8 °F (1991–2020). For a long swim: no wetsuit (warm).
How warm is the water in Dehiwala-Mount Lavinia in April?
In April, the water in Dehiwala-Mount Lavinia averages 85.6 °F (1991–2020), the warmest of the year. For a long swim: no wetsuit (warm).
When is the best time to swim in Dehiwala-Mount Lavinia?
In Dehiwala-Mount Lavinia the water is pleasant year-round: 81.4–85.6 °F on average, depending on the month. The water is warmest in April (85.6 °F on average) and coldest in August (81.4 °F).
Is the water warmer or colder than normal?
The water off Dehiwala-Mount Lavinia is warmer than normal for late October today (+1.8 °F).
More about Dehiwala-Mount Lavinia today
Water temperature near Dehiwala-Mount Lavinia
- Sri Jayewardenepura Kotte 84.9 °F · 3.8 mi
- Moratuwa 84.9 °F · 4.7 mi
- Colombo 84.9 °F · 6.8 mi
- Kalutara 84.6 °F · 19 mi
- Katunayaka 84.6 °F · 23 mi
- Negombo 84.6 °F · 26 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 2.4 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 1:48 pm (local time).
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