FUA'AMOTU WEATHER FORECASTING CENTRE
WEATHER BULLETIN ISSUED AT 07:00PM MONDAY 21 APRIL 2025
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WARNING FOR LAND AREAS
NO WARNING
SITUATION
A trough lies over the Niuas and it is expected to move northwards away from the group by tomorrow noon. Associated cloudy conditions with occasional showers may affect the Niuas. Meanwhile, a ridge is expected to extend into our group by tomorrow from the southwest bringing fine weather condition to most part of the group.
FORECAST TO MIDNIGHT TOMORROW FOR TONGA
FOR THE NIUAS:
Light west to southwesterly winds. Tending southeasterly winds by tomorrow morning and variable at times.
Cloudy with occasional showers.

FOR VAVA'U, HA'APAI, TONGATAPU AND 'EUA:
Light to moderate southwest wind. Tending south to southeasterly winds by tomorrow morning.
Mainly fine apart from cloudy periods with few showers.
OUTLOOK FOR WEDNESDAY
FOR ALL OF TONGA:
Light to moderate south to southeast winds.
Mainly fine apart from cloudy periods with isolated showers.
TEMPERATURE FORECAST FOR NUKU'ALOFA
MAXIMUM FOR TOMORROW: 30C
MINIMUM FOR TONIGHT: 23C
MARINE WEATHER BULLETIN
WARNINGS FOR COASTAL WATERS
NO WARNING
FORECAST TO MIDNIGHT TOMORROW FOR TONGA COASTAL WATERS
FOR VAVA'U, HA'APAI, TONGATAPU, 'EUA, TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS:
Southwest winds 10-15 knots, rising up to 20 knots at times. Tending south to southeasterly winds by tomorrow morning. Moderate to rough seas (up to 3 metres). A moderate southeasterly swell (up to 2.5 metres).

FOR THE NIUAS COASTAL WATERS:
West to southwest winds 10-15 knots. Tending southeasterly winds by tomorrow morning and variable at times. Moderate seas (up to 2.5 metres). A moderate southeasterly swell (up to 2 metres).
OUTLOOK FOR WEDNESDAY
FOR TONGATAPU, 'EUA, TELE-KI-TONGA AND TELE-KI-TOKELAU COASTAL WATERS:
South to southeast winds 10-15 knots.
Moderate to rough seas (up to 3 metres). A moderate easterly swell (up to 2.5 metres).
TIDE PREDICTION
LOW TIDE: 7:55PM
HIGH TIDE: 2:15AM early tomorrow
SUN AND MOON
MOONRISE: 12:46AM mid-night tonight
SUNRISE: 6:54AM tomorrow morning
THE MEAN SEA LEVEL PRESSURE RECORDED AT FUA'AMOTU AIRPORT AT 7:00PM WAS 1010.5 MILLIBARS AND THE RELATIVE HUMIDITY WAS 93%
FCD: PK/SV/= CRS: TT/=