The Bottom Sea Temperature in September

Average sea temperature for The Bottom, Saba across September, based on 10 years of daily readings.

Average

29.47° C

High

30.83° C

Low

28.25° 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.

September is the 1st warmest of 12 months at The Bottom. On average the water sits 1.4° than the year-round mean of 28.05° C.

Compared to August, September is 0.4° warmer than (29.03° C in August). By October the water is usually 29.36° C.

The Bottom Day-by-Day Water Temperature in September

10-year low, average and high

27.5° C

28.5° C

29.5° C

30.5° C

31.5° C

1

5

10

15

20

25

30

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

Each vertical bar above is one day of September. 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 The Bottom.

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.

September Water Temperature Table for The Bottom

10-year daily averages

Day	Average	Low	High
September 1	29.3° C	28.72° C	29.97° C
September 2	29.33° C	28.5° C	29.92° C
September 3	29.36° C	28.78° C	29.87° C
September 4	29.39° C	28.96° C	29.82° C
September 5	29.38° C	28.9° C	29.87° C
September 6	29.38° C	28.88° C	29.88° C
September 7	29.38° C	28.74° C	29.92° C
September 8	29.47° C	29.12° C	30° C
September 9	29.45° C	28.92° C	29.94° C
September 10	29.45° C	29.14° C	29.85° C
September 11	29.42° C	28.84° C	29.75° C
September 12	29.41° C	28.61° C	29.78° C
September 13	29.39° C	28.62° C	29.8° C
September 14	29.37° C	28.25° C	29.97° C
September 15	29.46° C	28.93° C	29.99° C
September 16	29.49° C	29.11° C	30.03° C
September 17	29.54° C	29.22° C	30.2° C
September 18	29.52° C	29.06° C	30.36° C
September 19	29.49° C	28.74° C	30.35° C
September 20	29.45° C	28.58° C	30.45° C
September 21	29.49° C	28.26° C	30.65° C
September 22	29.59° C	28.53° C	30.77° C
September 23	29.58° C	28.59° C	30.83° C
September 24	29.56° C	28.65° C	30.82° C
September 25	29.62° C	28.9° C	30.72° C
September 26	29.65° C	28.88° C	30.65° C
September 27	29.56° C	28.55° C	30.5° C
September 28	29.56° C	28.46° C	30.37° C
September 29	29.53° C	28.44° C	30.42° C
September 30	29.51° C	28.79° C	30.42° C

Where September Sits in the Year

September highlighted

24.5° C

26.4° C

28.3° C

30.1° C

32.0° C

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

27.01° C

26.65° C

27.12° C

27.77° C

28.3° C

28.68° C

29.03° C

29.47° C

29.36° C

28.71° C

27.84° C

10-year monthly history for The Bottom. 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 →

The Bottom Location

17.6256, -63.2489

Open this location on OpenStreetMap →

17.62559, -63.24888 View on OpenStreetMap →

The Bottom sits at 17.6256°N, 63.2489°W, on the coast of Saba. 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.