FUA'AMOTU WEATHER FORECASTING CENTRE
WEATHER BULLETIN ISSUED AT 06:00AM THURSDAY 21 AUGUST 2025
................................................................................................................................................................................
WARNING FOR LAND AREAS
	A STRONG WIND WARNING REMAINS IN FORCE FOR THE NIUAS LAND AREAS.
SITUATION
	A weak trough lies over Niuatoputapu across to the north of Niuafo'ou with associated clouds and scattered showers especially over Niuatoputapu until this evening. Meanwhile, a cool south to southeasterly wind flow prevails over Tonga.
FORECAST TO MIDNIGHT TONIGHT FOR TONGA
	FOR THE NIUAS: Light to moderate southeasterly winds, fresh to strong at times. Cloudy with scattered showers then becoming fine later in the evening especially over Niuatoputapu. FOR VAVA'U, HA'APAI, TONGATAPU AND 'EUA: Light to moderate south to southeasterly winds Mainly fine apart from cloudy periods with possible few showers. Cooler air temperature.
OUTLOOK FOR FRIDAY
	FOR THE NIUAS: Moderate to fresh east to southeasterly winds, strong at times. Mainly fine then becoming cloudy in the noon with scattered showers. FOR VAVA'U, HA'APAI, TONGATAPU AND 'EUA: Light to moderate southeasterly winds. Mainly fine apart from cloudy periods.
	TEMPERATURE FORECAST FOR NUKU'ALOFA
	MAXIMUM FOR TODAY: 26C MINIMUM FOR TONIGHT: 15C
MARINE WEATHER BULLETIN
WARNINGS FOR COASTAL WATERS
	A STRONG WIND WARNING REMAINS IN FORCE FOR THE NIUAS COASTAL WATERS. A SMALL CRAFT ADVIROSY IS NOW IN FORCE FOR TELE-KI-TONGA AND TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS WHILE REMAIN IN FORCE FOR THE NUAS COASTAL WATERS
FORECAST TO MIDNIGHT TONIGHT FOR TONGA COASTAL WATERS
	FOR THE NIUAS COASTAL WATERS: Southeasterly wind 10-20 knots rising up to 25-30 knots at times . Moderate to rough seas (up to 2-3 metres). FOR VAVA'U, HA'APAI, TONGATAPU, 'EUA, TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS: South to southeast winds 10-15 knots and rise up to 20 knots at times. Slight to moderate seas (up to 2 metres). A moderate southwesterly swell (up to 2-3 metres) over Tele-ki-Tonga and Tele-ki-Tokelau coastal waters.
	3
OUTLOOK FOR FRIDAY
	FOR THE NIUAS COASTAL WATERS: Southeast wind 15-20 knots rising up to 25-30 knots at times . Moderate to rough seas (up to 2-3 metres). FOR THE REST OF TONGA COASTAL WATERS: Southeasterly wind 10-15 knots, rising up to 20 knots at times. Moderate seas (up to 2 metres). A moderate southwesterly swell (up to 2 metres).
TIDE PREDICTION IN NUKU'ALOFA TODAY
	LOW TIDE: 12:00PM HIGH TIDE: 6:15PM
SUN AND MOON IN NUKU'ALOFA TODAY
	SUNRISE: 6:59AM.......SUNSET: 6:28PM MOONRISE: 5:21AM.....MOONSET: 4:25PM
THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA'AMOTU AIRPORT AT 06:00AM WAS 1018.6 MILLIBARS AND THE RELATIVE HUMIDITY WAS 75%.
..........................................................................................................................................................................................................
FCD: NH/PT/= CRS:EM/=