Weather in Faaa in September

Prime time. September is about as good as Faaa gets. Highs average 26 °C, lows 24.5 °C, and rain falls on 10 days — nothing in the month is working against you.

September is the highest-scoring month of the twelve. The nearest rival is August, and the month at the other end of the year is March.

Rain on 10 days, 0 of them heavy. Enough to need a plan B, not enough to need a plan around it. 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 September reaches 30 °C; the day barely swings — 1.5 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest September day reached 27.6 °C and the coldest night fell to 22.1 °C, and the wettest single day dropped 35 mm — roughly 88% of the month's rain in one day.

September is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest September on record still delivered 69 mm against 5 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 40 mm average is a reasonable planning figure, not a promise.

Wind sits around 19 km/h — a steady breeze rather than a nuisance, and welcome on the warmer days, and humidity runs at 77%, high enough to notice on the warm days without dominating them.

How September sits in the year

Temperatures hold steady either side: 25.7 °C in August, 26 here, 26.4 in October. Nothing about the timing within the month matters much. Rain is the thing that moves: October brings 5 days more of it, so the earlier half of a flexible trip is the safer half.

Daylight in September

12 hours of daylight, gaining 0.5 hours across the month. That is between Faaa's extremes of 13.2 and 11.1 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 26.4 °C in September — warm enough to stay in as long as you like. The sea peaks at 28.9 °C in March and bottoms out at 26.4 °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

Peak season. Expect the highest prices of the year and to be booking well ahead. If the dates are flexible, May is the trade worth considering — 10 points weaker on weather, and materially quieter.

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

September in Faaa versus nearby

If Faaa is one option among several, the nearby comparison is worth making. Vaitape is close enough to be a coin toss — within a degree on temperature, 1 day less rain. Avarua is the weaker option in September — 2.2 °C cooler, 4 days more rain.

So: September is the answer for Faaa. If it is booked out or priced out, August is the next best thing at 1 points behind, and March is the month to keep off the shortlist.

Every month in Faaa

See all twelve months in Faaa, or where else to go in September.