Iloilo City Weather in September
September in Iloilo City sees daytime temperatures around 31°C (88°F) and lows of 25°C (77°F) at night. Being part of the rainy season, heavy rainfall is a regular part of the day, so pack accordingly.
Rainfall in Iloilo City in September
Iloilo City is in the rainy season in September, with rain on around 19 days and an average of 306 mm (12 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours, often in the late afternoon.
Temperature in Iloilo City in September
September in Iloilo City brings very high temperatures, with highs of 31°C (88°F) and nights around 25°C (77°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about.
Wind Speed in Iloilo City in September
Wind speeds average 3 m/s (6 knots) during September. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.
Average water temperature in September
At 29°C (84°F), the water is very warm — more like a heated pool than the sea. Great for those who like warm water, though some may find it less refreshing on a hot day.September in Iloilo City can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Philippines, check out our Iloilo City's climate page.
Iloilo City Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
31°C (88°F)
Water Temperature
29°C (84°F)
Chance of Rain
62%
Precipitation
306 mm (12 in)
Rainy days
19 days
Humidity
85%
Windspeed
3 m/s (6 knots)
Daily Historical Temperatures
45-year average (1977-2025)
Based on our historical records, temperatures in Iloilo City typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Historical weather for Iloilo City in September
Browse day-by-day weather records for Iloilo City spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Iloilo City historical weather extremes in September
Based on 23 years of weather observations in Iloilo City between 2002 and 2025, these are the recorded extremes.
- Iloilo City recorded its highest September temperature of 36°C (97°F) on September 14, 2007.
- The lowest daytime temperature in September was 26°C (79°F), recorded on September 16, 2004.
- The coldest night in September in Iloilo City was on September 24, 2017, with a minimum of 23°C (73°F).
Best Places in Philippines in September
Find out more about the weather in Philippines and which places have the best travel conditions in this month. See all of Philippines in September →
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What to Wear in Iloilo City in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. The water temperature sits at about 29°C (84°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear.What To Do in Iloilo City in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Philippines, check out our Iloilo City's climate page.
Temperature Rainfall Humidity Wind Speed Water Temp
See the full Iloilo City climate overview or explore weather in Philippines.
