Weather in Apia in October

Shoulder season. October is shoulder season in Apia — cheaper, quieter, and a genuine gamble. You should expect rain on 22 days of the month, which is more days wet than dry.

Apia barely has seasons. October scores 58 out of 100 against a best of 72 in August — a gap small enough that the month you choose matters far less here than the week you choose.

Rain on 22 of the month's 31 days, 4 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 28.5 °C days and 26.8 °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: it never really gets hot: not one day in an average October reaches 30 °C; the day barely swings — 1.7 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest October day reached 30.3 °C and the coldest night fell to 25 °C, and the wettest single day dropped 41 mm — roughly 29% of the month's rain in one day.

October is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest October on record still delivered 216 mm against 61 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 141 mm average is a reasonable planning figure, not a promise.

Wind sits around 17.2 km/h — a steady breeze rather than a nuisance, and welcome on the warmer days, and humidity runs at 80%, high enough to notice on the warm days without dominating them.

How October sits in the year

Temperatures hold steady either side: 28.3 °C in September, 28.5 here, 28.6 in November. Nothing about the timing within the month matters much. Rain has already shifted: 5 days more than September had.

Daylight in October

Apia sits close enough to the equator that daylight barely moves all year — 12.4 hours in October, against a range of just 1.6 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

Sea temperature

The sea sits at about 28.2 °C in October — warm enough that the water offers no relief from the heat. The sea peaks at 29.5 °C in March and bottoms out at 27.8 °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

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.

October in Apia versus nearby

If Apia is one option among several, the nearby comparison is worth making. Nuku‘alofa is a better bet in October — 4.5 °C cooler, 8 days less rain. Avarua is a better bet in October — 4.3 °C cooler, 7 days less rain.

So: October works, with August the better month by 14 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Apia

See all twelve months in Apia, or where else to go in October.