FUA'AMOTU WEATHER FORECASTING CENTRE
WEATHER BULLETIN ISSUED AT 07:00PM TUESDAY 17 MARCH 2026
..................................................................................................................................
WARNING FOR LAND AREAS
	THE HEAVY RAIN WARNING AND FLASH FLOOD ADVISORY WERE PREVIOUSLY IN FORCE FOR TONGATAPU AND 'EUA LAND AREAS ARE NOW CANCELLED.
SITUATION
	A trough of low pressure system lies over the vicinity of Tongatapu and 'Eua and it is expcted to move over the southern waters tonight. Associated clouds, occasional showers and isolated thunderstorm will continue to affect Tongatapu, ʻEua, and the southern waters of Tonga tonight and tomorrow.
FORECAST TO MIDNIGHT TOMORROW FOR TONGA
	FOR HA'APAI,TONGATAPU AND 'EUA: Light to moderate north to northeasterly winds, fresh at times. Cloudy with occasional showers, possibly heavy at times with isolated thunderstorms. FOR THE NIUAS AND VAVA'U: Light to moderate east to northeasterly wind, fresh at times. Mainly fine apart from cloudy periods with scattered showers.
OUTLOOK FOR THURSDAY
	FOR ALL OF TONGA: Light to moderate east to northeasterly winds. Mainly fine apart from cloudy periods with scattered showers.
TEMPERATURE FORECAST FOR NUKU'ALOFA
	MINIMUM FOR TONIGHT: 24C MAXIMUM FOR TOMORROW: 31C
MARINE WEATHER BULLETIN
WARNINGS FOR COASTAL WATERS
	THE STRONG WIND WARNING AND SMALL CRAFT ADVISORY WERE PREVIOUSLY IN FORCE FOR TONGATAPU AND 'EUA COASTAL WATERS ARE NOW CANCELLED BUT STILL REMAIN IN FORCE FOR TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS.
FORECAST TO MIDNIGHT TOMORROW FOR TONGA COASTAL WATERS
	FOR TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS; East to northeast winds 10-15, rising up to 25-30 knots at times, tending north to northwest winds tonight. Moderate to rough seas (up to 3 metres). A moderate southwesterly swell (up to 2.5 metres). FOR TONGATAPU AND 'EUA COASTAL WATERS: North to northeast winds 10-15 knots, rising up to 20 knots at times. Moderate seas (up to 2.5 metres). FOR THE NIUAS, VAVA'U AND HA'APAI COASTAL WATERS: East to northeast winds 10-15 knots, rising up to 20 knots at times. Slight to moderate seas (up to 2 metres).
OUTLOOK FOR THURSDAY
	FOR THE NIUAS, VAVA'U, HA'APAI, TONGATAPU AND 'EUA COASTAL WATERS: East to northeast winds 10-15 knots. Slight to moderate seas (up to 2 metres). FOR TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS: West to southwesterly wind 10-15 knots, rising up to 20 knots at times. Moderate seas (up to 2.5 metres). A moderate southwesterly swell (up to 2.5 metres).
TIDE PREDICTION IN NUKU'ALOFA
	LOW TIDE: 12:40AM HIGH TIDE: 6:55AM tomorrow morning
SUN AND MOON IN NUKU'ALOFA
	MOONRISE: 5:32AM early tomorrow SUNRISE: 6:43AM tomorrow morning
THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA'AMOTU AIRPORT AT 7:00PM WAS 1014.0 MILLIBARS AND THE RELATIVE HUMIDITY WAS 95%
…...............................................................................................................................................................................................................
	FCD: PK/SV/TU/LL= CRS: TT/=