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Warmest sea in Malaysia in September

132 coastal locations in Malaysia ranked by their typical September sea temperature. Region-wide average in September: 29.8°C. The top of the list is where to find the warmest swimming this month.

Warmest in September

Labuk Bay

30.4°C September mean in Malaysia

Regional September average

29.8°C

across all 132 coastal locations in Malaysia

Vs annual mean

+0.2°C

above the year-round regional average

What the Malaysia sea feels like in September

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.

Malaysia monthly average 28.5°C to 30.5°C
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  • Warmest month May 30.5°C
  • Coldest month February 28.5°C
  • Annual mean 29.6°C
  • Months above 20°C 12 of 12

Where September fits in the year

September sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve Malaysia month rankings:

Malaysia sea temperature map (live)

The map shows today's latest reading at every Malaysia location. The list below is based on the typical September mean, useful for trip planning weeks or months ahead.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 warmest Malaysia locations in September

Sorted by the typical September mean built from a decade of daily readings at each location. Click any place for its 30-day chart, monthly profile, and full 10-year history.

# Location September mean
1 Labuk Bay Sabah 30.4°C
2 Kuala Lawas Sarawak 30.1°C
3 Sandakan 30.1°C
4 Sipitang Sabah 30.1°C
5 Weston Sabah 30.1°C
6 Port Weld Perak 30.1°C
7 Sungai Kedah Kedah 30.1°C
8 Pulau Bidan Kedah 30.1°C
9 Butterworth Wharves Pulau Pinang 30.1°C
10 Labuan (Victoria Harbour) Labuan Federal Territory 30.1°C
11 Lumut Pier Perak 30.1°C
12 Pinang (Georgetown) Pulau Pinang 30.1°C
13 Pulau Rimau Pulau Pinang 30.1°C
14 Tanjung Dawai Kedah 30.1°C
15 Alor Setar 30.1°C
16 Pintu Gedong Selangor 30.1°C
17 Pulau Angsa Selangor 30.1°C
18 Pulau Keraman Labuan Federal Territory 30.1°C
19 Sungai Petani 30.1°C
20 Bukit Mertajam 30.1°C
21 Butterworth 30.1°C
22 George Town 30.1°C
23 Kuala Perlis 30.1°C
24 Penang 30.1°C
25 Perai 30.1°C
Show 25 more ▸
26 Permatang Kuching 30.1°C
27 Permatang Sedepa (One Fathom Bank) Selangor 30.1°C
28 Tanjung Tokong 30.1°C
29 Batu Ferringhi 30.0°C
30 Kuala Lumpur 30.0°C
31 Port Klang 30.0°C
32 Pulau Lankayan Sabah 30.0°C
33 Sungai Sarawak (Pulau Lakei) Sarawak 30.0°C
34 Tanjung Gabang Selangor 30.0°C
35 Tiga Sabah 30.0°C
36 Klang 30.0°C
37 Kuala Lundu Sarawak 30.0°C
38 Kuala Selangor 30.0°C
39 Pulau Satang Besar Sarawak 30.0°C
40 Sematan Sarawak 30.0°C
41 Santubong Sarawak 30.0°C
42 Kuala Papar Sabah 30.0°C
43 Pelabuhan Kuah Kedah 30.0°C
44 Sungai Besut Terengganu 30.0°C
45 Kuala Balingian Sarawak 30.0°C
46 Pulau Beras Basah Kedah 30.0°C
47 Pulau Tigabu Sabah 30.0°C
48 Cape Rachado Melaka 30.0°C
49 Kuala Tatau Sarawak 30.0°C
50 Kuala Rajang Sarawak 30.0°C

Coldest 10 in Malaysia in September

Same data the other way. Helpful if you want to know which Malaysia coasts to avoid for swimming in September.

# Location September mean
1 Pulau Ru Terengganu 28.9°C
2 Teluk Tekek Pahang 29.1°C
3 Tioman 29.1°C
4 Mersing Johor 29.1°C
5 Pulau Babi Besar Johor 29.1°C
6 Tanjung Sedili Besar Johor 29.1°C
7 Tanjung Sedili Kechii Johor 29.1°C
8 Tanjung Penawar Johor 29.2°C
9 Tanjung Berhala Terengganu 29.2°C
10 Kuala Rompin Pahang 29.2°C

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