FPTO40 NFTF 210600

FUA'AMOTU WEATHER FORECASTING CENTRE

	

WEATHER BULLETIN ISSUED AT 07:00PM TUESDAY 21 APRIL 2026

	

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WARNING FOR LAND AREAS

	
	
NO WARNING.

	
			

SITUATION

	
	
A trough of low pressure system lies and slow moving over Tongatapu, 'Eua and Ha'apai. Associated cloudy condition with occasional showers may affect these areas tonight.

	
			

FORECAST TO MIDNIGHT TOMORROW FOR TONGA

	
	
FOR TONGATAPU AND 'EUA:
Light to moderate north to northwesterly winds.
Cloudy periods with occasional showers, possibly heavy at times with isolated thunderstorms tonight.

FOR VAVA'U AND HA'APAI:
Light to moderate east to northeast winds, variable at times.
Cloudy periods over Ha'apai with occasional showers possibly heavy at times tonight. Elsewhere will be fine.

FOR THE NIUAS:
Light to moderate east to northeasterly winds.
Mainly fine apart from cloudy periods with scattered showers for tomorrow morning.

	
			

OUTLOOK FOR THURSDAY

	
	
FOR ALL OF TONGA:
Light to moderate east to northeast winds and variable at times
Cloudy periods with scattered showers especially early in the morning and late at night.

	
			

TEMPERATURE FORECAST FOR NUKU'ALOFA

	
	
MAXIMUM FOR TOMORROW: 30C
MINIMUM FOR TONIGHT: 24C

	
			
			

MARINE WEATHER BULLETIN

	
			

WARNINGS FOR COASTAL WATERS

	
	
STRONG WIND WARNING AND SMALL CRAFT ADVISORY REMAIN IN FORCE FOR TONGATAPU AND 'EUA COASTAL WATERS.

	
			

FORECAST TO MIDNIGHT TOMORROW FOR TONGA COASTAL WATERS

	
	
FOR TONGATAPU AND 'EUA COASTAL WATERS
Northwesterly winds 10-15 knots, rising up to 20-30 knot at times especially the southeastern waters. Moderate seas (up to 2.5 metres). A moderate southwesterly swell (up to 2.5 metres).

FOR TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS:
South to southeasterly wind 10-15 knots. Moderate seas (up to 2.5 metres). A moderate southwesterly swell (up to 2-3 metres). 

FOR VAVA'U AND HA'APAI COASTAL WATERS:
North to northeast winds 10-15 knots, variable up to 10 knots at times. Slight seas.

FOR THE NIUAS COASTAL WATERS:
East to northeast winds 10 -15 knots. Slight seas.

	
	
 

	

OUTLOOK FOR THURSDAY

	
	
FOR TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS:
North to northwest winds 10-15 knots and shifting to southeast winds 20-25 knots in the afternoon. Becoming rough seas in the afternoon (up to 3 metres). A moderate southwesterly swell (up to 2-3 metres). Poor visibility in waters of heavy rain.

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). A moderate southwesterly swell (up to 2.5 metres).

	
			

TIDE PREDICTION IN NUKU'ALOFA

	
	
HIGH TIDE: 11:00PM
LOW TIDE: 5:00AM

	
			

SUN AND MOON IN NUKU'ALOFA

	
	
SUNRISE: 6:54AM
MOONRISE: 11:44AM

	
			

THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA'AMOTU AIRPORT AT 7:00PM WAS 1012.8 MILLIBARS AND THE RELATIVE HUMIDITY WAS 95%

	

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FCD: SI/ML/IL/= CRS: HT/=