September weather forecastSantiago, Philippines
September
Weather in September
The first month of the autumn, September, is also a hot month in Santiago, Philippines, with an average temperature ranging between min 21.7°C (71.1°F) and max 30.8°C (87.4°F).Temperature
During September, Santiago records an average high-temperature of a still hot 30.8°C (87.4°F), marking a slight divergence from August's 31.4°C (88.5°F). During the month of September, Santiago's nighttime temperature lowers to an average of 21.7°C (71.1°F).Heat index
September's heat index is calculated to be a blisteringly hot 41°C (105.8°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.
Humidity
In September, the average relative humidity in Santiago is 81%.Rainfall
In Santiago, Philippines, in September, it is raining for 26.3 days, with typically 159mm (6.26") of accumulated precipitation. In Santiago, during the entire year, the rain falls for 275.8 days and collects up to 1583mm (62.32") of precipitation.Daylight
The average length of the day in September is 12h and 14min.On the first day of September in Santiago, Philippines, sunrise is at 5:40 am and sunset at 6:07 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 5:43 pm PST.
Sunshine
In September, the average sunshine is 9.4h.UV index
April through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 7 suggests these recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Santiago, Philippines
- Average high temperature in September: 30.8°C
The warmest month (with the highest average high temperature) is June (32.6°C).
The month with the lowest average high temperature is January (24.4°C).
- Average low temperature in September: 21.7°C
The months with the highest average low temperature are May and June (22.8°C).
The coldest month (with the lowest average low temperature) is January (17.9°C).
Average pressure in September
Santiago, Philippines
- Average pressure in September: 1008.3mbar
The months with the highest atmospheric pressure are January and February (1014.8mbar).
The month with the lowest atmospheric pressure is August (1007.3mbar).
Average wind speed in September
Santiago, Philippines
- Average wind speed in September: 5.1km/h
The windiest month (with the highest average wind speed) is October (6.5km/h).
The calmest month (with the lowest average wind speed) is May (4.7km/h).
Average humidity in September
Santiago, Philippines
- Average humidity in September: 81%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Santiago, Philippines
- Average rainfall in September: 159mm
The wettest month (with the highest rainfall) is August (196mm).
The driest month (with the least rainfall) is February (57mm).
Average rainfall days in September
Santiago, Philippines
- Average rainfall days in September: 26.3 days
The month with the highest number of rainy days is July (28.9 days).
The month with the least rainy days is February (19.2 days).
Average daylight in September /
Average sunshine in September
Santiago, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The months with the least sunshine are January and December (Average sunshine: 4h and 54min).
Average sunshine days in September
Santiago, Philippines
- Average sunshine days in September: 1 days
The month with the most sunshine days is March (7.4 days).
The month with the least sunshine days is July (0.4 days).
Average UV index in September
Santiago, Philippines
- Average UV index in September: 7
The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover in September
Santiago, Philippines
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in September
Santiago, Philippines
- Average visibility in September: 9km
The months with the highest visibility are May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
