Weather in Port-Vila in August

A good month. August is a solid month to be in Port-Vila. Highs average 24.8 °C, lows 23.7 °C, and rain falls on 14 days — nothing in the month is working against you.

August ranks 3 of 12 in Port-Vila. Only September scores clearly higher, and the difference is small enough to be settled by price rather than weather.

This is persistent light rain rather than storms: 14 wet days but only 1 heavy ones. It rarely cancels anything outright, and it rarely fully clears either. A jacket beats an umbrella. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

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 August reaches 30 °C; the day barely swings — 1 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest August day reached 27.5 °C and the coldest night fell to 19.8 °C.

August is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest August on record still delivered 111 mm against 10 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 61 mm average is a reasonable planning figure, not a promise.

Wind sits around 21.9 km/h — a steady breeze rather than a nuisance, and welcome on the warmer days, and humidity runs at 78%, high enough to notice on the warm days without dominating them.

How August sits in the year

Temperatures hold steady either side: 24.9 °C in July, 24.8 here, 25.2 in September. Nothing about the timing within the month matters much.

Daylight in August

August sits at the dark end of Port-Vila's year — 11.5 hours of daylight against 13.2 at midsummer, gaining 0.4 hours across the month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.

Sea temperature

The sea sits at about 25.2 °C in August — warm enough to stay in as long as you like. The sea peaks at 28.8 °C in February and bottoms out at 25.2 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Busy. Popular without being frantic; book the things you care about, improvise the rest.

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

August in Port-Vila versus nearby

If Port-Vila is one option among several, the nearby comparison is worth making. Nouméa is close enough to be a coin toss — 3.2 °C cooler, 5 days less rain. Nadi is close enough to be a coin toss — within a degree on temperature, 3 days less rain.

So: August is effectively as good as it gets here — 5 points behind September, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Port-Vila

See all twelve months in Port-Vila, or where else to go in August.