FPTO40 NFTF 161700


MATATOA WEATHER FORECASTING CENTRE


WEATHER BULLETIN ISSUED AT 06:00AM SATURDAY 17 OCTOBER 2026


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WARNING FOR LAND AREAS


NO WARNING.



SITUATION


A high-pressure system located far southeast of Tonga continues to di
rect
moderate to strong easterly to southeasterly winds across the country
.
Meanwhile, a frontal system is expected to approach the coastal water
s of
Tele-ki-Tonga and Tele-ki-Tokelau later this morning, bringing fresh 
to strong
southerly to southeasterly winds before extending to Tongatapu and 
Eua
waters later tonight.



FORECAST TO MIDNIGHT TONIGHT FOR TONGA


FOR THE NIUAS, VAVA'U AND HA'APAI:
Light to moderate east to southeasterly winds, fresh at times.
Mainly fine apart from cloudy periods with possible brief showers.

FOR TONGATAPU AND 'EUA:
Light southeasterly winds, variable at times, gradually increasing la
ter this
evening to moderate southeasterly winds, fresh at times. Mainly fine 
and cooler
overnight air temperatures.



OUTLOOK FOR SUNDAY


FOR ALL OF TONGA:
Moderate to fresh southeasterly winds, strong at times.
Mainly fine with possible light showers.



TEMPERATURE FORECAST FOR NUKU'ALOFA


MAXIMUM FOR TODAY: 27C
MINIMUM FOR TONIGHT: 18C




MARINE WEATHER BULLETIN



WARNINGS FOR COASTAL WATERS


A STRONG WIND WARNING, HIGH SURF WARNING AND SMALL CRAFT ADVISORY ARE
 NOW IN
FORCE FOR TELE-KI-TONGA, TELE-KI-TOKELAU, TONGATAPU AND 'EUA COASTAL 
WATERS
WHILE ITS REMAIN IN FORCE FOR THE NIUAS, VAVA'U AND HA'APAI COASTAL W
ATERS.



FORECAST TO MIDNIGHT TONIGHT FOR TONGA COASTAL WATERS


FOR THE NIUAS, VAVA'U AND HA'APAI COASTAL WATERS:
East to southeasterly winds of 10-20 knots, rising up to 25 knots at 
times.
Moderate seas (up to 2.5 metres), with a moderate easterly swell (up 
to 2.5
metres).

FOR TONGATAPU AND 'EUA COASTAL WATERS:
East to southeasterly winds of 10-20 knots, becoming variable up to 1
0 knots at
times. Winds are expected to gradually increasing from the south up t
o 25 knots
later tonight especially to the south. Moderate seas (up to 2.5 metre
s). A
moderate easterly swell (up to 2 metres).

FOR TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS:
Light and variable winds of up to 10 knots, gradually increasing from
 the south
to southeasterly at 1525 knots later this morning. Slight seas the
n becoming
moderate to rough seas later this noon (up to 2.5-3 metres). A modera
te
south-westerly swell (up to 2.5 metres) developing later this morning





OUTLOOK FOR SUNDAY


FOR ALL OF TONGA COASTAL WATERS:
Southeasterly winds 15-20 knots, increasing to 25-30 knots at times. 
Moderate
to rough seas (up to 2.5 - 3.5 metres). A moderate south-westerly swe
ll (up to
2.5 metres) over the southern waters.



TIDE PREDICTION IN NUKU'ALOFA FOR TODAY


HIGH TIDE: 12:25PM
LOW TIDE: 6:15PM



SUN AND MOON IN NUKU'ALOFA


SUNRISE: 6:08AM...........SUNSET: 6:44PM
MOONRISE: 10:32AM.........MOONSET: 12:31AM after midnight



THE MEAN SEA LEVEL PRESSURE RECORDED AT MATATOA AT 6:00AM WAS 1014.9 
MILLIBARS
AND THE RELATIVE HUMIDITY WAS 98%


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FCD: LL= OBS: NH= CRS: FV=