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September in Clark brings very high temperatures, with daytime highs of 31°C (88°F) and nights around 24°C (75°F). It's part of the rainy season, with 318 mm (13 in) of rainfall on average, so an umbrella or poncho is a good idea.
September in Clark has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Pick a month to see the average temperature, rainfall and sunshine in Clark - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Clark typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 24°C (75°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Clark spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Our historical data for Clark spans 1997 to 2025, revealing these weather extremes.
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 →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm but pleasant conditions in Clark in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
See the full Clark climate overview or explore weather in Philippines.
Where to go in September - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
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