Weather in Nadi in December

Shoulder season. December 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.

December ranks 9 of 12 in Nadi: past the worst of the year but short of July, which is the month to book if the dates are open.

Rain on 21 of the month's 31 days, 7 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. Pack for 29.5 °C days and 25.5 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 10 days top 30 °C — hot spells arrive, but they break; the day barely swings — 4 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest December day reached 32.7 °C and the coldest night fell to 21.7 °C, and the wettest single day dropped 90 mm — roughly 40% of the month's rain in one day.

December is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest December on record still delivered 445 mm against 69 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 224 mm average is a reasonable planning figure, not a promise.

Wind sits around 16.6 km/h — a steady breeze rather than a nuisance, and welcome on the warmer days, and humidity runs at 79%, high enough to notice on the warm days without dominating them.

How December sits in the year

Temperatures hold steady either side: 28.9 °C in November, 29.5 here, 29.9 in January. Nothing about the timing within the month matters much.

Daylight in December

December is at or near the longest days of Nadi's year: 13.2 hours of daylight, holding steady all month. Evenings are the real gain — dinner outdoors still happens in full light.

Sea temperature

The sea sits at about 27.7 °C in December — warm enough that the water offers no relief from the heat. The sea peaks at 29.1 °C in February and bottoms out at 25.9 °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

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

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

December in Nadi versus nearby

If Nadi is one option among several, the nearby comparison is worth making. Labasa is close enough to be a coin toss — within a degree on temperature, 1 day more rain. Port-Vila is close enough to be a coin toss — within a degree on temperature, 2 days less rain.

So: December is a compromise. July is 26 points better and is what Nadi is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Nadi

See all twelve months in Nadi, or where else to go in December.