North Danger Reef Sea Temperature in January

Average sea temperature for North Danger Reef, Spratly Islands across January, based on 10 years of daily readings.

Average

27.57° C

High

28.5° C

Low

26.16° 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.

January is the 11th warmest of 12 months at North Danger Reef. On average the water sits 1.2° than the year-round mean of 28.8° C.

Compared to December, January is 0.6° cooler than (28.21° C in December). By February the water is usually 27.22° C.

North Danger Reef Day-by-Day Water Temperature in January

10-year low, average and high

25.5° C

26.4° C

27.3° C

28.1° C

29.0° C

1

5

10

15

20

25

31

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

Each vertical bar above is one day of January. 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 North Danger Reef.

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.

January Water Temperature Table for North Danger Reef

10-year daily averages

Day	Average	Low	High
January 1	27.96° C	27.45° C	28.44° C
January 2	27.93° C	27.45° C	28.5° C
January 3	27.89° C	27.44° C	28.49° C
January 4	27.89° C	27.37° C	28.37° C
January 5	27.84° C	27.36° C	28.39° C
January 6	27.72° C	27.34° C	28.43° C
January 7	27.68° C	27.29° C	28.47° C
January 8	27.67° C	27.31° C	28.41° C
January 9	27.65° C	27.27° C	28.3° C
January 10	27.63° C	27.23° C	28.11° C
January 11	27.61° C	27.19° C	28.14° C
January 12	27.59° C	27.21° C	28.18° C
January 13	27.61° C	27.14° C	28.21° C
January 14	27.63° C	27.16° C	28.26° C
January 15	27.69° C	27.16° C	28.33° C
January 16	27.65° C	27.13° C	28.22° C
January 17	27.63° C	27.03° C	28.18° C
January 18	27.62° C	26.95° C	28.1° C
January 19	27.52° C	26.94° C	28.16° C
January 20	27.46° C	26.96° C	28.21° C
January 21	27.49° C	26.92° C	28.23° C
January 22	27.53° C	26.88° C	28.19° C
January 23	27.43° C	26.4° C	28.22° C
January 24	27.36° C	26.2° C	28.21° C
January 25	27.37° C	26.19° C	28.14° C
January 26	27.36° C	26.19° C	28.12° C
January 27	27.31° C	26.17° C	28.09° C
January 28	27.32° C	26.16° C	28.05° C
January 29	27.28° C	26.27° C	28° C
January 30	27.27° C	26.27° C	28.01° C
January 31	27.25° C	26.26° C	27.98° C

Where January Sits in the Year

January highlighted

24.5° C

26.5° C

28.5° C

30.5° C

32.5° C

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

27.57° C

27.22° C

27.77° C

29.11° C

30.18° C

30° C

29.39° C

29.08° C

29.14° C

29.25° C

28.63° C

28.21° C

10-year monthly history for North Danger Reef. 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 →

North Danger Reef Location

11.4500, 114.3170

Open this location on OpenStreetMap →

11.45000, 114.31700 View on OpenStreetMap →

North Danger Reef sits at 11.4500°N, 114.3170°E, on the coast of Northeast Cay, Spratly Islands. 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.