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North Danger Reef Sea Temperature in April

Northeast Cay, Spratly Islands

March North Danger Reef year-round → May

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

Average

29.11° C

High

30.45° C

Low

27.58° 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.

April is the 6th warmest of 12 months at North Danger Reef. On average the water sits 0.3° than the year-round mean of 28.8° C.

Compared to March, April is 1.3° warmer than (27.77° C in March). By May the water is usually 30.18° C.

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

10-year low, average and high

27.0° C
28.0° C
29.0° C
30.0° C
31.0° 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 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.

April Water Temperature Table for North Danger Reef

10-year daily averages

Day Average Low High
April 1 28.48° C 27.82° C 28.88° C
April 2 28.49° C 27.58° C 28.91° C
April 3 28.51° C 27.66° C 29.02° C
April 4 28.54° C 27.75° C 28.98° C
April 5 28.59° C 27.87° C 28.96° C
April 6 28.7° C 27.96° C 28.97° C
April 7 28.72° C 28.15° C 29.04° C
April 8 28.76° C 28.17° C 29.3° C
April 9 28.82° C 28.33° C 29.37° C
April 10 28.82° C 28.45° C 29.24° C
April 11 28.88° C 28.59° C 29.31° C
April 12 28.98° C 28.69° C 29.23° C
April 13 28.98° C 28.81° C 29.08° C
April 14 29.02° C 28.67° C 29.53° C
April 15 29.2° C 28.78° C 29.96° C
April 16 29.25° C 28.84° C 29.74° C
April 17 29.29° C 29° C 29.75° C
April 18 29.38° C 28.96° C 29.77° C
April 19 29.35° C 28.94° C 29.76° C
April 20 29.3° C 28.85° C 29.77° C
April 21 29.4° C 28.96° C 30.02° C
April 22 29.44° C 28.97° C 30.1° C
April 23 29.48° C 28.86° C 30.09° C
April 24 29.5° C 28.88° C 29.99° C
April 25 29.6° C 29.1° C 30.33° C
April 26 29.51° C 28.97° C 30.2° C
April 27 29.45° C 28.95° C 30.23° C
April 28 29.61° C 29.2° C 30.35° C
April 29 29.71° C 29.33° C 30.29° C
April 30 29.71° C 28.98° C 30.45° C

Where April Sits in the Year

April 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

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.