FPTO40 NFTF 190600

FUA'AMOTU WEATHER FORECASTING CENTRE


WEATHER BULLETIN ISSUED AT 07:00PM TUESDAY 19 AUGUST 2025


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WARNING FOR LAND AREAS

	
NO WARNING

		

SITUATION

	
A weak trough lies over Vava'u and it is expected to move north to the Niuas by tomorrow morning. Associated clouds with scattered showers may affect Vava'u tonight and the Niuas by tomorrow morning. Meanwhile, cool south to southeasterly winds prevail over the Group.

		

FORECAST TO MIDNIGHT TOMORROW FOR TONGA

	
FOR THE NIUAS:
Light to moderate east to southeasterly winds, fresh at times.
Mainly fine then becoming cloudy by tomorrow morning with scattered showers.

FOR VAVA'U:
Light to moderate southeasterly winds
Cloudy at times with scattered showers then becoming fine by tomorrow morning.

FOR HA'APAI, TONGATAPU AND 'EUA:
Light to moderate south to southeasterly winds, variable at times today.
Mainly fine with possible light showers.
Cooler air temperature tonight with possible fog at some areas.

		

OUTLOOK FOR THURSDAY

	
FOR THE NIUAS:
Moderate southeasterly winds, fresh at times.
Cloudy at times with scattered showers.

FOR VAVA'U, HA'APAI, TONGATAPU AND 'EUA:
Light to moderate south to southeasterly winds.
Mainly fine apart from cloudy periods.

		
	
TEMPERATURE FORECAST FOR NUKU'ALOFA

	
MINIMUM FOR TONIGHT: 15C
MAXIMUM FOR TOMORROW: 26C

		
		

MARINE WEATHER BULLETIN

		

WARNINGS FOR COASTAL WATERS

	
NO WARNING

		

FORECAST TO MIDNIGHT TOMORROW FOR TONGA COASTAL WATERS

	
FOR HA'APAI, TONGATAPU, 'EUA, TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS:
South to southeast winds 10-15 knots and variables up to 10 knots at times.
Slight seas.

FOR VAVA'U AND THE NIUAS COASTAL WATERS:
South to southeast winds 10-15 knots rising up to 20 knots at times over the Niuas.
Slight to moderate seas (up to 2 metres).

		

OUTLOOK FOR THURSDAY

	
FOR THE TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS:
South to southeast winds 15-20 knots rising up to 25 knots at times.
Moderate seas (up to 2.5 metres). A moderate southerly swell (up to 3.5 metres).

FOR VAVA'U, HA'APAI, TONGATAPU AND 'EUA COASTAL WATERS:
South to southeast winds 10-15 knots and rising up to 20 knots at times.
Slight to moderate seas (up to 2 metres). A moderate southerly swell (up to 3 metres).

FOR THE NIUAS COASTAL WATERS:
South to southeast winds 15-20 knots rising up to 25 knots at times.
Moderate seas (up to 2.5 metres).

		

TIDE PREDICTION IN NUKU'ALOFA TODAY

	
LOW TIDE: 10:10PM tonight
HIGH TIDE: 4:30AM early tomorrow

		

SUN AND MOON IN NUKU'ALOFA TODAY

	
SUNRISE: 7:00AM tomorrow
MOONRISE: 4:28AM early tomorrow

		

THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA'AMOTU AIRPORT AT 07:00PM WAS 1018.2 MILLIBARS AND THE RELATIVE HUMIDITY WAS 85%.


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FCD: VMF/VV/= CRS:TT/=