Weather in Nuku‘alofa in March

Shoulder season. March sits in between. You will get good days and you will lose some. You should expect rain on 21 days of the month, which is more days wet than dry.

Nuku‘alofa barely has seasons. March scores 62 out of 100 against a best of 78 in July — a gap small enough that the month you choose matters far less here than the week you choose.

Rain on 21 of the month's 31 days, 6 of them heavy. At that frequency a wet-weather backup is not a contingency, it is the itinerary — book the indoor things first and treat the clear days as the bonus. Natural fibres and a second shirt for the day. At 82% nothing dries, including you.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average March reaches 30 °C; the day barely swings — 0.8 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest March day reached 28.8 °C and the coldest night fell to 23.2 °C, and the wettest single day dropped 102 mm — roughly 52% of the month's rain in one day.

March is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest March on record still delivered 428 mm against 75 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 196 mm average is a reasonable planning figure, not a promise.

Wind sits around 18.7 km/h — a steady breeze rather than a nuisance, and welcome on the warmer days, and humidity runs at 82%, high enough to notice on the warm days without dominating them.

How March sits in the year

Temperatures hold steady either side: 27.4 °C in February, 27.2 here, 26.5 in April. Nothing about the timing within the month matters much.

Daylight in March

12.2 hours of daylight, losing 0.6 hours across the month. That is between Nuku‘alofa's extremes of 13.4 and 10.9 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 28.1 °C in March — warm enough that the water offers no relief from the heat. This is the warmest the water gets all year.

How busy it gets

Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

March in Nuku‘alofa versus nearby

If Nuku‘alofa is one option among several, the nearby comparison is worth making. Apia is close enough to be a coin toss — within a degree on temperature, 3 days more rain. Avarua is close enough to be a coin toss — within a degree on temperature, 1 day more rain.

So: March works, with July the better month by 16 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Nuku‘alofa

See all twelve months in Nuku‘alofa, or where else to go in March.