Palau in September: Weather, Crowds & What to Expect

Season
Low Season
Temperature
26-31°C (79-88°F)
Crowds
Low
Prices
Low
September remains within the rainy season; expect intermittent heavy rain and higher seas. Some travelers prefer this period for lower prices, but plan flexibly for weather-related changes.

Climate Map for September

Palau average temperature in September
-30°-20°-10° 10°20°30°40°

Average temperature across Palau in September.

City Weather in September

City High Low Rain UV Feels
Koror (city) 30° 23° 289 mm extreme Warm
Koror Town 30° 23° 289 mm extreme Warm
Ngermid 30° 23° 289 mm extreme Warm
Kloulklubed extreme
Ulimang extreme
Mengellang 30° 23° 288 mm extreme Warm
Ngchesar Hamlet extreme

High / low are average daily temperatures (°C). “Feels” reflects how hot or cold it feels, allowing for humidity.

Koror & Airai (Main Hub)

September still carries the bulk of the wet-season weather with strong, humid days and recurring downpours; surf near exposed points can be rough and uninviting for casual swimmers. Many dive operators run reduced schedules or focus on protected sites inside the lagoon where visibility is better. Pack a good rain jacket, waterproof footwear for muddy shorelines, and plan more time for transfers-roads can be slow after heavy rainfall.

Babeldaob (Interior & North)

September’s frequent showers continue to swell rivers and trap humidity, making lengthy land travel tiring and occasionally unpredictable-check with hosts about road conditions before setting out. If your interest is wildlife or river photography, this is a productive time as water levels are high, but plan flexible schedules. Carry waterproof boots and keep electronics in dry cases as boat transfers may be substituted for impassable roads.

Rock Islands & Southern Lagoon (Diving, Kayaking & Snorkeling)

September continues the wet pattern with frequent heavy showers that can cloud the water and reduce coral-viewing quality near runoff zones; photographers should expect softer light and moody skies. Protected bays still deliver rewarding snorkeling, though it pays to be pragmatic about plans and to check daily weather briefings. Bring solid rain protection and accept that some long boat trips may be postponed.

Peleliu & Angaur (Southern Historic Islands)

September’s continuing wet pattern keeps visitor numbers low and makes land-based trail walking more adventurous due to mud and dense vegetation. If you come for quiet reflection on the historical sites, this is a slow period-just plan for wet-weather conditions and less reliable transport. Waterproof bags and sturdy, closed-toe shoes are indispensable for safe exploration.

Northern Atolls & Outer Cays (Kayangel, Ngarchelong)

September still carries wet-season rhythms and rougher ocean conditions that make outer-cay exploration intermittent; early mornings may provide usable windows for short trips. If you’re intent on seeing remote sandbars, book flexible, local-guided charters that can adapt to changing sea states. Waterproof cases for cameras and spares for basic first-aid are useful on these isolated outings.

Events & Festivals in September

There are no major festivals or events in Palau during September to be aware of.