August · Philippines
Best time to visit Underground River in August Weather, crowds & prices
Weather in Underground River in August
Average temperature 28°C, 191 mm of rain, about 21 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
4.3/10
Ranked #7 of 12 months
- Avg temp
- 28°C
- Rainfall
- 191 mm
- Humidity
- 81%
- Days with 6h+ sun
- 21
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
August in Underground River scores 4.3/10 for nature and wildlife travel - ranked #7 of 12. Expect around 28°C, 191 mm of rain, and roughly 21 days with 6+ hours of sunshine this month.
The Underground River on Palawan runs through a limestone cave to the sea, a UNESCO site near Puerto Princesa.
August in Underground River — off-season conditions
August averages 28°C (83°F) and humidity near 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Monthly rainfall reaches 191 mm — wet for this destination — but about 21 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 4.3/10 here, 7th of 12 months, against 6.8/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.
Plan for mid-season pricing, with crowds are moderate.
Flexible dates? February scores 2.5 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Underground River in August?
- In August, Underground River averages 28°C, 191 mm of rain, and about 21 days with 6+ hours of sunshine. Its climate-comfort score is 4.3/10.
- Is August a good time to visit Underground River?
- August earns a 4.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Underground River in August?
- Expect about 191 mm of rain in August. Average humidity is 81% and there are about 21 days with 6+ hours of sunshine.
Curated in Underground River
Tickets & experiences
Things to do in Underground River
Underground River, Philippines. Live activities and tours from GetYourGuide, matched to this destination.