FPTO40 NFTF 181700


FUA'AMOTU WEATHER FORECASTING CENTRE



WEATHER BULLETIN ISSUED AT 06:00AM WEDNESDAY 19 AUGUST 2026



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WARNING FOR LAND AREAS



NO WARNING




SITUATION



A weak trough lies over Vava'u and the Niuas. Meanwhile, a ridge of
high-pressure extends from the southwest towards the south of the gro
up,
directing cool moderate to fresh southerly winds across the group for
 the
remaining of the week.




FORECAST TO MIDNIGHT TONIGHT FOR TONGA



FOR THE NIUAS AND VAVA'U:
Light to moderate south to southeast winds and fresh at times.
Cloudy with scattered showers.

FOR HA'APAI, TONGATAPU AND 'EUA:
Light to moderate south to southeast winds and fresh at times
Mainly fine apart from cloudy periods with few showers. Cooler overni
ght air
temperatures.




OUTLOOK FOR THURSDAY



FOR THE REST OF TONGA:
Moderate south to southeasterly winds, fresh at times.
Mainly fine apart from partly cloudy with isolated showers. Cooler ov
ernight
air temperatures.




TEMPERATURE FORECAST FOR NUKU'ALOFA



MAXIMUM FOR TODAY: 23C
MINIMUM FOR TONIGHT: 13C





MARINE WEATHER BULLETIN




WARNINGS FOR COASTAL WATERS



A STRONG WIND, HIGH SURF WARNING AND SMALL CRAFT ADVISORY REMAIN IN F
ORCE FOR
ALL OF TONGA COASTAL WATERS.




FORECAST TO MIDNIGHT TONIGHT FOR TONGA COASTAL WATERS



FOR ALL OF TONGA COASTAL WATERS:
South to southeast winds 10-20 knots rising up to 25 knots at times
Moderate to rough seas (up to 2.5 metres). A moderate southwesterly s
well (up
to 2-3 metres).







OUTLOOK FOR THURSDAY



FOR ALL OF TONGA COASTAL WATERS:
Southeast wind of 15-20 knots, rising up to 25-30 knots at times.
Moderate to rough seas (up to 2-3 metres). A moderate southwesterly s
wells (up
to 2-3 metres).




TIDE PREDICTION IN NUKU'ALOFA FOR TODAY



LOW TIDE:6:25AM
HIGH TIDE: 12:35PM




SUN AND MOON IN NUKU'ALOFA



SUNRISE: 7:01AM.............SUNSET: 6:28PM
MOONRISE: 10:52AM.........MOONSET: 12:27AM




THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA'AMOTU AIRPORT AT 6:00AM W
AS 1016.6
MILLIBARS AND THE RELATIVE HUMIDITY WAS 73%



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FCD: SV/PT/= CRS: FV/=