FUA'AMOTU WEATHER FORECASTING CENTRE
WEATHER BULLETIN ISSUED AT 06:00AM FRIDAY 19 SEPTEMBER 2025
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WARNING FOR LAND AREAS
THE STRONG WIND WARNING WAS PREVIOUSLY INFORCE FOR THE NIUAS, VAVA'U, TONGATAPU AND 'EUA LAND AREAS, IS NOW CANCELLED.

A STRONG WIND WARNING REMAINS INFORCE FOR HA'APAI LAND AREAS.
SITUATION
A high pressure system lies to the far southeast extends onto the group and continues to circulate a fresh to strong southeasterly wind flow over Tonga.
FORECAST TO MIDNIGHT TONIGHT FOR TONGA
FOR HA'APAI:
Moderate to fresh southeasterly wind, strong at times.
Mainly fine apart from cloudy at times with possible few showers.

FOR THE NIUAS, VAVA'U, TONGATAPU AND 'EUA:
Light to moderate southeasterly wind, fresh at times.
Mainly fine apart from cloudy periods with possible few showers.
Expect cooler air temperature at night time.
OUTLOOK FOR SATURDAY
FOR ALL OF TONGA:
Moderate to fresh southeasterly wind.
Mainly fine apart from cloudy periods.
TEMPERATURE FORECAST FOR NUKU'ALOFA
MAXIMUM FOR TODAY: 25C
MINIMUM FOR TONIGHT: 17C
MARINE WEATHER BULLETIN
WARNINGS FOR COASTAL WATERS
A STRONG WIND WARNING AND SMALL CRAFT ADVISORY REMAIN IN FORCE FOR ALL OF TONGA COASTAL WATERS.
FORECAST TO MIDNIGHT TONIGHT FOR TONGA COASTAL WATERS
FOR ALL OF TONGA COASTAL WATERS:
Southeasterly winds 15-20 knots, rising up to 25-30 knot at times.
Moderate to rough seas (up to 3 metres). A moderate easterly swell (up to 2 metres).
 
OUTLOOK FOR SATURDAY
FOR ALL OF TONGA COASTAL WATERS:
Southeast winds 15-20 knots, rising up to 25 knots at times.
Moderate seas (up to 2.5 metres). A moderate easterly swell (up to 2 metres).
TIDE PREDICTION IN NUKU'ALOFA TODAY
LOW TIDE: 11:40AM
HIGH TIDE: 5:55PM
SUN AND MOON IN NUKU'ALOFA
SUNRISE: 6:33AM.......SUNSET: 6:36PM
MOONRISE: 5:20AM.....MOONSET: 4:15PM
THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA'AMOTU AIRPORT AT 06:00AM WAS 1018.8 MILLIBARS AND THE RELATIVE HUMIDITY WAS 70%.
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FCD: GV/AA= CRS: FL=