FUA'AMOTU WEATHER FORECASTING CENTRE
WEATHER BULLETIN ISSUED AT 07:00PM TUESDAY 22 SEPTEMBER 2026
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WARNING FOR LAND AREAS
A STRONG WIND WARNING REMAINS IN FORCE FOR THE NIUAS LAND AREAS.
SITUATION
A trough lies over Vava'u and the Niuas, bringing cloudy conditions with occasional showers for tonight and tomorrow. Meanwhile, a southeasterly winds continue to prevail across the group.
FORECAST TO MIDNIGHT TOMORROW FOR TONGA
FOR THE NIUAS:
Moderate to fresh southeasterly winds, strong at times.
Cloudy with occasional rain, possibly heavy at times.

FOR HA'APAI AND VAVA'U:
Light to moderate southeasterly winds, fresh at times.
Cloudy periods with scattered showers, possibly heavy at times, especially Vava'u while generally fine over Ha'apai.


FOR TONGATAPU AND 'EUA:
Light to moderate south to southeasterly winds, fresh at times.
Mainly fine apart from cloudy periods with possible few showers.
Cooler air temperature at noght times.
OUTLOOK FOR THURSDAY
FOR THE NIUAS AND VAVA'U:
Moderate southeasterly winds, fresh to strong at times over Vava'u.
Cloudy periods with scattered showers, possibly heavy at times.

FOR HA'APAI, TONGATAPU AND 'EUA:
Light to moderate south to southeasterly winds, fresh at times.
Mainly fine apart from cloudy periods with possible few showers.
TEMPERATURE FORECAST FOR NUKU'ALOFA
MAXIMUM FOR TOMORROW: 25C
MINIMUM FOR TONIGHT: 15C
MARINE WEATHER BULLETIN
WARNINGS FOR COASTAL WATERS
A STRONG WIND AND SMALL CRAFT ADVISORY REMAINS INFORCE FOR THE NIUAS AND VAVA'U COASTAL WATERS

A HIGH SURF WARNING REMAIN IN FORCE FOR ALL OF TONGA COASTAL WATERS.
FORECAST TO MIDNIGHT TOMORROW FOR TONGA COASTAL WATERS
FOR TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS:
South to southeasterly winds 10-15 knots. Moderate to rough seas (up to 3 metres). A moderate southwesterly swell (up to 2.5-3.5 metres).

FOR HA'APAI, TONGATAPU AND 'EUA COASTAL WATERS:
South to southeasterly winds 10-15 knots, rising up to 20 knots at times. Moderate to rough seas (up to 2-3 metres). A moderate southwesterly swell (up to 2.5 metres).

FOR VAVA'U AND THE NIUAS COASTAL WATERS:
Southeasterly winds 10-20 knots, rising up to 25-30 knots at times. Moderate to rough seas (up to 2-3 metres). A moderate southwesterly swell (up to 2-3 metres). Poor visibilities in area of heavy rain.
 
OUTLOOK FOR THURSDAY
FOR THE NIUAS COASTAL WATERS:
Southeasterly winds 10-15, rising up to 20-25 knots at times.
Moderate to rough seas (up to 2.5-3 metres). A moderate southwesterly swell (up to 2-2.5 metres).

FOR VAVA'U AND HA'APAI COASTAL WATERS:
Southeasterly winds 10-15 knots, rising up to 20 knots at times.
Moderate seas (up to 2.5 metres). A moderate southwesterly swell (up to 2 metres).

FOR TONGATAPU, 'EUA, TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS:
South to southeasterly winds 10-15 knots. Slight to moderate seas (up to 2.5 metres).
A moderate southwesterly swell (up to 2-3 metres).
TIDE PREDICTION IN NUKU'ALOFA FOR TODAY
LOW TIDE: 10:25PM
HIGH TIDE: 4:30AM early tomorrow
SUN AND MOON IN NUKU'ALOFA TODAY
SUNRISE: 6:30AM tomorrow
MOONSET: 4:01AM early tomorrow
THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA'AMOTU AIRPORT AT 07:00PM WAS 1019.3 MILLIBARS AND THE RELATIVE HUMIDITY WAS 86%
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FCD: ML/TU/IS/IL= CRS: FV/