May · Palau
Best time to visit Koror in May Weather, crowds & prices
Weather in Koror in May
Average temperature 28°C, 511 mm of rain, about 25 days with 6+ hours of sunshine and 82% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
3.2/10
Ranked #7 of 12 months
- Avg temp
- 28°C
- Rainfall
- 511 mm
- Humidity
- 82%
- Days with 6h+ sun
- 25
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
May in Koror scores 3.2/10 for sightseeing and cultural travel - ranked #7 of 12. Expect around 28°C, 511 mm of rain, and roughly 25 days with 6+ hours of sunshine this month.
Koror is Palau's commercial and marine-tourism hub, linking museums, local food, WWII history, dive operators, and boat routes into the Rock Islands.
May in Koror — the hardest end of the year
Days in May average 28°C (82°F) and humidity near 82% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
This is the year's wettest stretch at 511 mm, but with about 25 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.
That is 3.2/10 on the same scale — 7th of 12 months, versus 3.3/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Budget for low-season pricing, and crowds are light for this destination.
Frequently asked
- What is the weather like in Koror in May?
- In May, Koror averages 28°C, 511 mm of rain, and about 25 days with 6+ hours of sunshine. Its climate-comfort score is 3.2/10.
- Is May a good time to visit Koror?
- May earns a 3.2/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Koror in May?
- Expect about 511 mm of rain in May. Average humidity is 82% and there are about 25 days with 6+ hours of sunshine.
Curated in Koror
Tickets & experiences
Things to do in Koror
Koror, Palau. Live activities and tours from GetYourGuide, matched to this destination.