Weather in Quezon City in September

A hard month. September asks something of you. Go in knowing what. You should expect rain on 27 days of the month, which is more days wet than dry.

September ranks 10 of 12 — near the bottom of Quezon City's year. February is the month that works, and the swing between the two is 19 points, which is a different holiday rather than a slightly better one.

Rain on 27 of the month's 30 days, 9 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. Natural fibres and a second shirt for the day. At 88% nothing dries, including you.

What the averages hide

Averages flatten a month, and this one hides a few things: 15 days top 30 °C — hot spells arrive, but they break; the day barely swings — 5.1 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest September day reached 35.2 °C and the coldest night fell to 23.2 °C, and the wettest single day dropped 173 mm — roughly 57% of the month's rain in one day.

September is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest September on record still delivered 518 mm against 52 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 301 mm average is a reasonable planning figure, not a promise.

Wind is light at 4.2 km/h, so the temperature on the page is close to the temperature on your skin, and humidity at 88% is the real story though — it is the number that decides how the day feels, not the 30.2 °C.

How September sits in the year

Temperatures hold steady either side: 29.9 °C in August, 30.2 here, 30 in October. Nothing about the timing within the month matters much.

Daylight in September

Quezon City sits close enough to the equator that daylight barely moves all year — 12.2 hours in September, against a range of just 1.7 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

An inland climate

Despite being inland, the year stays fairly even: 11.4 °C between the year's warmest afternoons and coldest nights.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

September in Quezon City versus nearby

If Quezon City is one option among several, the nearby comparison is worth making. Angeles City is close enough to be a coin toss — within a degree on temperature, 1 day more rain. Iloilo is a better bet in September — within a degree on temperature, 1 day less rain.

So: September works, with February the better month by 12 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Quezon City

See all twelve months in Quezon City, or where else to go in September.