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Sumatra Sea Temperature in April

Indonesia

March Sumatra year-round → May

Average sea temperature for Sumatra, Indonesia across April, based on 10 years of daily readings.

Average

30.16° C

High

31.21° C

Low

27.02° C

Water at this temperature is very warm and you should look to bathe only. Avoid any kind of strenuous swimming as there is a real risk of heat stroke at this temperature.

April is the 2nd warmest of 12 months at Sumatra. On average the water sits 0.6° than the year-round mean of 29.55° C.

Compared to March, April is 0.4° warmer than (29.81° C in March). By May the water is usually 30.25° C.

Sumatra Day-by-Day Water Temperature in April

10-year low, average and high

26.0° C
27.5° C
29.0° C
30.5° C
32.0° C
1
5
10
15
20
25
30
Day-by-day low and high band with the 10-year daily average through April. Range Average

Each vertical bar above is one day of April. 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 Sumatra.

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.

April Water Temperature Table for Sumatra

10-year daily averages

Day Average Low High
April 1 30.07° C 29.8° C 30.39° C
April 2 30° C 29.64° C 30.41° C
April 3 29.99° C 29.51° C 30.52° C
April 4 30.02° C 29.5° C 30.48° C
April 5 30.05° C 29.51° C 30.58° C
April 6 30.12° C 29.66° C 30.66° C
April 7 30.16° C 29.64° C 30.72° C
April 8 30.16° C 29.28° C 30.76° C
April 9 30.09° C 29.02° C 30.64° C
April 10 30.1° C 28.99° C 30.78° C
April 11 30.14° C 29° C 30.99° C
April 12 30.21° C 29.01° C 30.97° C
April 13 30.2° C 29.05° C 30.88° C
April 14 30.26° C 29.16° C 30.85° C
April 15 30.29° C 29.16° C 31.21° C
April 16 30.42° C 29.49° C 31.06° C
April 17 30.4° C 29.45° C 30.95° C
April 18 30.22° C 29.04° C 30.82° C
April 19 30.15° C 28.93° C 30.88° C
April 20 30.15° C 28.98° C 31.09° C
April 21 30.16° C 29.07° C 30.85° C
April 22 30.24° C 29.16° C 30.84° C
April 23 30.2° C 29.29° C 30.66° C
April 24 30.26° C 29.46° C 30.74° C
April 25 30.2° C 29.49° C 30.71° C
April 26 30.26° C 29.48° C 30.64° C
April 27 30.01° C 27.24° C 30.72° C
April 28 30.06° C 27.02° C 31.08° C
April 29 30.12° C 27.2° C 31.17° C
April 30 30.12° C 27.24° C 30.92° C

Where April Sits in the Year

April highlighted

24.0° C
26.1° C
28.3° C
30.4° C
32.5° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
29.24° C
29.6° C
29.81° C
30.16° C
30.25° C
29.95° C
29.81° C
29.68° C
29.29° C
29.01° C
28.89° C
28.9° C
10-year monthly history for Sumatra. 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 April

Compare other Indonesia water for the same month

Sumatra Location

-0.5897, 101.3431

-0.58972, 101.34311 View on OpenStreetMap →

Sumatra sits at -0.5897°N, 101.3431°E, on the coast of Indonesia. 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 Sumatra