Georgetown Sea Temperature in May

Average sea temperature for Georgetown, Ascension Island across May, based on 10 years of daily readings.

Average

27.99° C

High

29.32° C

Low

27.27° C

This water temperature is comparable to that of a swimming pool, but it might be higher than most open water swimmers prefer for serious swimming. Make sure to drink plenty of water before and after swimming and don't wear a wetsuit to avoid overheating.

May is the 3rd warmest of 12 months at Georgetown. On average the water sits 1.6° than the year-round mean of 26.4° C.

Compared to April, May is 0.3° cooler than (28.31° C in April). By June the water is usually 27.17° C.

Georgetown Day-by-Day Water Temperature in May

10-year low, average and high

26.5° C

27.4° C

28.3° C

29.1° C

30.0° C

1

5

10

15

20

25

31

Day-by-day low and high band with the 10-year daily average through May. Range Average

Each vertical bar above is one day of May. 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 Georgetown.

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.

May Water Temperature Table for Georgetown

10-year daily averages

Day	Average	Low	High
May 1	28.15° C	27.44° C	29.13° C
May 2	28.14° C	27.37° C	29.17° C
May 3	28.18° C	27.59° C	29.32° C
May 4	28.21° C	27.68° C	29.26° C
May 5	28.17° C	27.69° C	29.16° C
May 6	28.15° C	27.66° C	29.08° C
May 7	28.12° C	27.49° C	29.01° C
May 8	28.1° C	27.44° C	28.96° C
May 9	28.04° C	27.3° C	28.91° C
May 10	28.02° C	27.27° C	28.84° C
May 11	28.02° C	27.31° C	28.78° C
May 12	28.04° C	27.4° C	28.72° C
May 13	28.03° C	27.51° C	28.7° C
May 14	28° C	27.55° C	28.52° C
May 15	27.97° C	27.57° C	28.48° C
May 16	28.02° C	27.64° C	28.5° C
May 17	28.02° C	27.59° C	28.5° C
May 18	28.03° C	27.51° C	28.43° C
May 19	27.98° C	27.52° C	28.34° C
May 20	27.95° C	27.59° C	28.48° C
May 21	27.93° C	27.52° C	28.48° C
May 22	27.9° C	27.61° C	28.27° C
May 23	27.86° C	27.59° C	28.22° C
May 24	27.88° C	27.55° C	28.17° C
May 25	27.88° C	27.61° C	28.13° C
May 26	27.85° C	27.37° C	28.19° C
May 27	27.89° C	27.6° C	28.22° C
May 28	27.84° C	27.58° C	28.35° C
May 29	27.79° C	27.42° C	28.18° C
May 30	27.74° C	27.37° C	28.06° C
May 31	27.64° C	27.45° C	27.95° C

Where May Sits in the Year

May highlighted

22.5° C

24.6° C

26.8° C

28.9° C

31.0° C

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

26.44° C

27.41° C

28.17° C

28.31° C

27.99° C

27.17° C

26.12° C

25.13° C

24.62° C

24.66° C

25.04° C

25.7° C

10-year monthly history for Georgetown. 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 →

Georgetown Location

-7.9262, -14.4112

Open this location on OpenStreetMap →

-7.92622, -14.41120 View on OpenStreetMap →

Georgetown sits at -7.9262°N, 14.4112°W, on the coast of Ascension Island. 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.