Dumaguete weather in September

September in Dumaguete: sweltering, soaked, with clean air — not the time — 26 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Dumaguete🇵🇭 Philippines · Philippines · City47
  1. 62Jan
  2. 69Feb
  3. 71Mar
  4. 67Apr
  5. 57May
  6. 51Jun
  7. 47Jul
  8. 53Aug
  9. 47Sep
  10. 46Oct
  11. 58Nov
  12. 57Dec

#11 of 12 months in Dumaguete · #1286 of 1413 destinations to visit in September · comfort 47/100 (tier F)

Days
32°C
Nights
25°C
Wet days
26
Sun
9.4 h
Humidity
85%
Daylight
12 h
Dumaguete, Philippines
Photo: MacroLingo LLC · Pexels

Traveller notes on Dumaguete in September

Notes from nearby Bohol (111 km away)

Dumaguete doesn't have its own notes for September yet — these are about Bohol, close enough to share the season.

Forum posters describe September across the Visayas, Bohol included, as genuinely rainy-season territory, with central and southern Visayas running somewhat drier than the northern Philippines at the same time. Posters are consistent that even on a rain-prone day, the rain itself tends to be brief rather than an all-day event, leaving real stretches of good weather for outdoor activities within the same day. One visitor who spent both August and September in the Philippines recalled only a handful of genuinely torrential days out of the whole stretch, with the rest ranging from on-and-off showers to good, workable weather. Posters generally rate Bohol as a solid September choice within the Philippines, with the caveat that a flexible, rain-tolerant itinerary matters more than picking an exact date.
Tripadvisor community · September · 1 month ago · about Bohol · Read more on Tripadvisor ↗

Other months in Dumaguete

Philippines forum regulars point out that August is the peak of the rainy season nationally, but the Visayas - where Dumaguete sits - tends to fare better than Luzon or Manila. The realistic pattern described is a short, heavy downpour most days rather than an all-day washout, leaving plenty of daylight for diving or exploring once it passes. A small typhoon can still disrupt ferry crossings for a day or two, so it's worth building slack into an island-hopping itinerary, but daily life and outdoor plans generally aren't ruined by the rain here the way they can be further north.
VisayasIslandHopper · August · 1 month ago · Read more on Tripadvisor ↗
Forum posters, including a local property manager, describe Dumaguete as not really having strict, sharply defined seasons - roughly November-April brings more wind and a cooler feel, while May-September is less windy but more humid. February falls in that cooler, breezier stretch and generally sits outside typhoon season, but posters report real year-to-year variation: one visitor described two straight weeks of rain during a February stay, while another found it hot with brief but violent daily rainstorms rather than sustained rain. Overall posters frame February as a reasonable dry-season bet without promising a washout-free visit.
Tripadvisor community · February · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Dumaguete's card on the map.

Dumaguete climate normals — September

Daytime high32°C / 90°F🔥 sweltering
Nighttime low25°C / 76°F
Feels like (high)39°C / 102°F
Sea temperature30°C / 85°F♨️ bath-warm
Rainfall324 mm / 12.8 in⛈ soaked
Rainy days26 days
Humidity85%💦 very humid
Dew point25°C / 76°F
Sunshine9.4 h/day
Daylight12.2 h
Wind11 km/h / 7 mph
Air quality (US AQI)27🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Dumaguete in September

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Peak crowdsSandurot Festival, Term 1 wellness break in Philippines, school holidays in 3 of the markets that fill it(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Dumaguete's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Toughest weatherDumaguete's weather peaks February–April, best around March.

September coincides with Typhoon season.

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Best weatherFair weatherToughest weather

What's on in Dumaguete in September

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Rule

    Apo Island sanctuary fee

    1 Jan – 31 Dec

    Everyone landing on the island pays an entry fee, with a higher one to snorkel or dive the sanctuary. It pays for the wardens, and the boat crews collect it before you get in the water. Source ↗

  • Hazard

    Typhoon season

    1 Jun – 30 NovClosures

    Negros Oriental sits on the sheltered side and most systems pass north, but the ones that do come through cancel the Apo Island boats and the Cebu ferries for a couple of days. Source ↗

  • Festival

    Sandurot Festival

    1–30 Sep · usuallyMajor festivalCrowded

    The city's own festival — a reenactment of the arrival of its early settlers, street dancing along the boulevard and a week of stalls. Smaller and friendlier than the provincial one. Source ↗

  • Season

    Wet season

    MonsoonRisk

    26 rainy days and about 324 mm in the month — the real kind of rainy season, not afternoon showers.

    from the climate normals

What's on around the world in September →

Nearby, and something's on

Within 300 km of Dumaguete — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Dumaguete?

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Dumaguete in September — FAQ

Is September a good time to visit Dumaguete?
September in Dumaguete: sweltering, soaked, with clean air — not the time — 26 rainy days. It ranks #11 of 12 months for Dumaguete on SeasonMap's comfort score (47/100).
What is the weather like in Dumaguete in September?
In September, Dumaguete averages a daily high of 32°C and a low of 24.6°C, with about 324.4 mm of rain over roughly 25.9 rainy days.
What is the air quality in Dumaguete in September?
Dumaguete has a mean US Air Quality Index of about 27 in September.

Within 300 km: Cebu City's The Ber months around 1 Sep – 25 Dec, and Bohol's Habagat rains around 1 Jun – 31 Oct.