General Santos Weather in September
In General Santos, September brings very high daytime temperatures around 31°C (88°F), with nights cooling to 22°C (72°F). This month falls within the rainy season, so expect frequent rainfall.
Rainfall in General Santos in September
General Santos is in the rainy season in September, with rain on around 12 days and an average of 211 mm (8.3 in). The rain this month falls heavily when it arrives. Late afternoons in particular can see strong showers, so waterproofs are worth keeping handy.
Temperature in General Santos in September
In September, General Santos gets very high temperatures, with highs of 31°C (88°F). Nights cool to around 22°C (72°F). Sunshine and humidity can make it feel even warmer than the raw temperature suggests. With overnight lows of 22°C (72°F), evenings stay pleasantly warm.Our weather planner can help you find worldwide destinations with pleasant weather during this period. February and March typically offer the best weather for General Santos.
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 General Santos's climate page.
General Santos Temperature in September
Min Temperature
22°C (72°F)
Max Temperature
31°C (88°F)
Chance of Rain
41%
Precipitation
211 mm (8.3 in)
Rainy days
12 days
Humidity
82%
Daily Historical Temperatures
40-year average (1978-2025)
Based on our historical records, temperatures in General Santos typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in September
Historical weather for General Santos in September
Browse day-by-day weather records for General Santos spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
General Santos historical weather extremes in September
Based on 19 years of weather observations (2006-2025), these are the most extreme conditions recorded in General Santos.
- On September 30, 2025, temperatures climbed to 34°C (93°F), marking the warmest September day on record.
- General Santos experienced its chilliest September day on September 3, 2014, reaching only 26°C (79°F).
- General Santos registered its coldest September night on September 22, 2022, with temperatures dropping to 21°C (70°F).
- Peak precipitation in September occurred on September 24, 2024, when 49 mm (1.9 in) of precipitation was measured.
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 General Santos in September
Warm but pleasant conditions in General Santos 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.What To Do in General Santos 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 General Santos's climate page.
See the full General Santos climate overview or explore weather in Philippines.
