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Sesimbra Sea Temperature in August

Continental Portugal, Portugal

July Sesimbra year-round → September

Average sea temperature for Sesimbra, Portugal across August, based on 10 years of daily readings.

Average

18.79° C

High

20.92° C

Low

16.58° C

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

August is the 2nd warmest of 12 months at Sesimbra. On average the water sits 1.6° than the year-round mean of 17.21° C.

Compared to July, August is 0.2° about the same as (18.59° C in July). By September the water is usually 18.94° C.

Sesimbra Day-by-Day Water Temperature in August

10-year low, average and high

15.5° C
17.1° C
18.8° C
20.4° C
22.0° C
1
5
10
15
20
25
31
Day-by-day low and high band with the 10-year daily average through August. Range Average

Each vertical bar above is one day of August. The shaded band covers the range the water has reached on that day across the last 10 years — the lowest reading at the bottom, the highest at the top. The line running through the bars is the daily average over those 10 years, so you can see the typical shape of the month at Sesimbra.

A narrow band means the temperature on that day has stayed close to the average year on year. A taller band means it has swung more, often because of changeable weather around that time of year. Hovering a day pulls up its low, average, and high.

August Water Temperature Table for Sesimbra

10-year daily averages

Day Average Low High
August 1 18.69° C 17.75° C 19.51° C
August 2 18.53° C 18.11° C 19.16° C
August 3 18.58° C 17.51° C 19.44° C
August 4 18.76° C 17.58° C 19.88° C
August 5 18.81° C 17.95° C 20.12° C
August 6 18.89° C 17.71° C 20.27° C
August 7 18.85° C 17.63° C 19.88° C
August 8 18.91° C 17.6° C 19.83° C
August 9 18.84° C 17.45° C 20.05° C
August 10 18.7° C 16.88° C 19.76° C
August 11 18.77° C 17.2° C 20.19° C
August 12 18.91° C 17.78° C 20.45° C
August 13 18.91° C 17.52° C 20.29° C
August 14 18.72° C 17.17° C 20.18° C
August 15 18.53° C 17.43° C 19.89° C
August 16 18.77° C 17.57° C 19.93° C
August 17 18.89° C 17.48° C 20.29° C
August 18 18.88° C 17.43° C 20.27° C
August 19 18.95° C 16.58° C 20.49° C
August 20 19.04° C 16.62° C 20.57° C
August 21 19.03° C 17.12° C 20.52° C
August 22 19.13° C 17.06° C 20.92° C
August 23 18.97° C 17° C 20.82° C
August 24 18.8° C 17.85° C 20.38° C
August 25 18.72° C 17.6° C 19.96° C
August 26 18.75° C 17.73° C 20.21° C
August 27 18.72° C 17.76° C 20.31° C
August 28 18.71° C 17.63° C 20.36° C
August 29 18.61° C 17.55° C 20.07° C
August 30 18.55° C 17.6° C 19.63° C
August 31 18.5° C 17.54° C 19.75° C

Where August Sits in the Year

August highlighted

12.5° C
15.0° C
17.5° C
20.0° C
22.5° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
15.74° C
15.16° C
15.13° C
16.04° C
17.07° C
18.17° C
18.59° C
18.79° C
18.94° C
18.57° C
17.68° C
16.69° C
10-year monthly history for Sesimbra. Bars span historical low to high; the line marks the monthly average. Range Average
January → February → March → April → May → June → July → August → September → October → November → December →

Nearby Locations in August

Compare other Portugal water for the same month

Sesimbra Location

38.4445, -9.1020

38.44447, -9.10201 View on OpenStreetMap →

Sesimbra sits at 38.4445°N, 9.1020°W, on the coast of Continental Portugal, Portugal. The marker on the map shows the spot the readings on this page come from. It usually sits a short distance from the town centre, out on the open water itself, so the numbers stay tied to the coast rather than a generic point inland.

Coastlines bend, headlands focus the water, and the temperature can run noticeably differently between two beaches that look close together on a map. Comparing nearby locations is a quick way to see how local geography is shaping the readings.

Nearest locations to Sesimbra