Marine forecast issued by the Solomon Islands Meteorological Service and valid for the next 24 hours from 4:00pm this afternoon on Sunday, 18 October 2026.
General Situation
A general southeast trade wind flow persists over the country.
Marine Warnings
Refer to Strong Wind Warning.
Forecast for the Western Region (Western, Choiseul and Isabel provinces)
South to southeast winds at 10 to 15 knots with slight to moderate seas. Mostly fine. Further Outlook for Tuesday: Southerly winds at 10 to 20 knots with slight to moderate seas and low southeast swells.
Forecast for the Central Region (Malaita, Guadalcanal and Central provinces)
East to southeast winds at 10 to 20 knots reaching 25 knots at times with moderate seas and low to moderate southeast swells. Isolated showers. Further Outlook for Tuesday: Southeasterly winds at 10 to 20 knots reaching 25 knots at times with moderate to rough seas and low to moderate southeast swells.
Forecast for the Eastern Region (Makira, Temotu and Rennell/Bellona provinces)
East to southeast winds at 15 to 25 knots with moderate to rough seas and moderate southeast swells. Isolated showers. Further Outlook for Tuesday. Southerly winds at 10 to 20 knots, reaching 25 knots at times with moderate to rough seas and low to moderate southeast swells.
Forecast for Honiara port & surrounding areas
East to northeast winds at 05 to 15 knots with slight seas. Mostly fine. Further Outlook for Tuesday: East to northeast at 10 to 15 knots.
Tidal Prediction for Honiara
High tide will be at 6:10pm this evening (0.84m)
Low tide will be at 04:50am early tomorrow morning (0.26m)
Tidal Prediction for Lata
High tide will be at 8:14pm this evening (1.05m)
Low tide will be at 05:38am tomorrow morning (0.54m)
Tidal Prediction for Taro
High tide will be at 6:33pm this evening (1.13m)
Low tide will be at 06:34am tomorrow morning (0.56pm)
The next update will be issued at 7:00am tomorrow morning.
Marine forecasts for coastal waters up to 60 nautical miles (nm) sea ward*
| Term | Wave/sea height | Term | Wave/sea heights |
| smooth seas | 1 – 2 ft (0.3 – 0.6 m) | moderate seas | 5 – 8 ft, (1.5 – 2.5 m) |
| Slight seas | 2 – 5 ft (0.6 – 1.5 m) | rough seas | 11 –12ft (2.5 – 3.5 m) |
| Low swells= 0-2 m (6 ft) moderate swells =2 – 4 m (6 – 13 ft) heavy swells = over 4 m (over 13 ft) | |||
| Wind speeds quoted are the expected average speeds. Individual gusts may exceed these values by a factor of up to 1.5. Wave heights are significant wave heights, which may be accompanied by individual waves 1.5 to 2.0 times higher. Be aware that these estimates of wind waves/swells do not take into account the enhancing effects of the local sea currents. | |||