About This Outlook
As part of our ongoing commitment to protect mariners' lives and help in times of crisis, Weathernews will be providing daily snapshots of critical port weather trends in the Indian Ocean.
Explore this week’s operational weather risks in our [Weekly Outlook].
Reports are updated four times daily and include 48-hour, 5-day and 7-day outlooks for your use.
Daily Port Weather Highlights
This snapshot is based on the 48-hour forecast issued September 15, 2026, at 00:00 UTC.
Port Forecast Alert Threshold
■ COLOMBO, Sri Lanka
Winds and gusts stay moderate throughout September 15, with waves easing steadily from a firm start. All parameters remain below caution levels for the day.
Wind: Winds start at 10 kts at 05:00 LT, building slightly to a peak of 11 kts between 06:00–14:00 LT, then easing to 8 kts by 21:00–23:00 LT.
Gust: Gusts hold at 15 kts at 05:00 LT, climbing to a peak of 17 kts at 12:00–14:00 and again at 18:00 LT, before dropping to 13 kts between 20:00–22:00 LT.
Wave: Significant wave height starts at 2.5 m at 05:00 LT, holding at that level through 12:00 LT, then gradually declining to 2.2 m by 19:00–23:00 LT.
■ YANGON, Myanmar
Winds and gusts stay light throughout September 15, dipping briefly mid-morning before settling into a steady pattern. Waves remain negligible all day. All parameters remain well below caution levels.
Wind: Winds start at 4 kts at 06:00–07:00 LT, dip to 2 kts at 10:00 LT, then settle into a steady 6 kts from 11:00 LT through 23:00 LT.
Gust: Gusts hold at 6 kts through 06:00–07:00 LT, drop briefly to 3 kts at 10:00 LT, then climb to a steady 9 kts from 13:00 LT onward, easing only slightly to 8 kts at 12:00 LT.
Wave: Significant wave height starts at 0.1 m at 06:00–07:00 LT, rising slightly to 0.2 m by 08:00 LT and holding steady at that level through 23:00 LT.
■ BANGKOK, Thailand
Winds and gusts remain calm throughout September 15, with only a gentle build in the afternoon. Waves stay negligible all day. All parameters remain well below caution levels.
Wind: Winds start light at 5 kts at 07:00–08:00 LT, gradually building to a peak of 9 kts between 13:00–16:00 LT and again at 19:00 LT, before easing back to 7 kts by 21:00–23:00 LT.
Gust: Gusts hold at 8 kts through 07:00–08:00 LT, climbing to a peak of 14 kts at 15:00–16:00 LT, then tapering to 9 kts by 23:00 LT.
Wave: Significant wave height starts at 0.1 m at 07:00–08:00 LT, rising slightly to 0.2 m by 09:00 LT and holding steady at that level through the remainder of the day.
View Detailed Forecasts on SeaNavigator Free
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Major Ports with Published Port Forecasts
Arabian Sea Coast Region
- India: Mumbai Port, Nhava Sheva (Jawaharlal Nehru Port)
- Pakistan: Karachi Port, Gwadar, Muhammad Bin Qasim
- Qatar: Doha Port, Ras Laffan Port
- Oman: Salalah, Duqm
- Yemen: Aden
In addition, approximately 150 locations are covered, including ports in the Persian Gulf and the Red Sea.
