September weather forecastSantander, Philippines
September
Weather in September
September, the first month of the autumn in Santander, is still a warm month, with an average temperature fluctuating between 28.8°C (83.8°F) and 26°C (78.8°F).Temperature
Santander, Philippines, records an average high-temperature of a still moderately hot 28.8°C (83.8°F) in September, maintaining a close correlation with August's 29.2°C (84.6°F). Santander's nocturnal September readings average at a still warm 26°C (78.8°F), showing little variation from the daytime temperatures.Heat index
The heat index for September is calculated to be a hot 34°C (93.2°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Evaluating the heat index requires understanding its values in the shade and with gentle winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. 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. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
The average relative humidity in September is 78%.Rainfall
In Santander, in September, during 21.6 rainfall days, 62mm (2.44") of precipitation is typically accumulated. Throughout the year, there are 269 rainfall days, and 899mm (35.39") of precipitation is accumulated.Sea temperature
In Santander, in September, the average water temperature is 29.3°C (84.7°F).Note: For swimming, diving, and enjoying other water activities, the range of 25°C (77°F) to 29°C (84.2°F) in water temperature is considered ideal, offering pleasure for extended periods without discomfort.
Daylight
The average length of the day in September in Santander, Philippines, is 12h and 11min.On the first day of the month, sunrise is at 5:37 am and sunset at 5:55 pm. On the last day of September, in Santander, sunrise is at 5:35 am and sunset at 5:38 pm PST.
Sunshine
The average sunshine in September is 8.6h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Santander are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 7 in September leads to these guidelines:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Caution! Sand and water surfaces escalate the UV intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Santander, Philippines
- Average high temperature in September: 28.8°C
The warmest month (with the highest average high temperature) is May (29.8°C).
The month with the lowest average high temperature is January (27.6°C).
- Average low temperature in September: 26°C
The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is February (25.1°C).
Average pressure in September
Santander, Philippines
- Average pressure in September: 1009.4mbar
The month with the highest atmospheric pressure is February (1011.1mbar).
The month with the lowest atmospheric pressure is July (1009mbar).
Average wind speed in September
Santander, Philippines
- Average wind speed in September: 13km/h
The windiest month (with the highest average wind speed) is February (20km/h).
The calmest month (with the lowest average wind speed) is May (9.4km/h).
Average humidity in September
Santander, Philippines
- Average humidity in September: 78%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Santander, Philippines
- Average rainfall in September: 62mm
The wettest month (with the highest rainfall) is October (123mm).
The driest month (with the least rainfall) is April (43mm).
Average rainfall days in September
Santander, Philippines
- Average rainfall days in September: 21.6 days
The month with the highest number of rainy days is October (26.1 days).
The month with the least rainy days is February (18.3 days).
Average sea temperature in September
Santander, Philippines
- Average sea temperature in September: 29.3°C
The best month for swimming (with the highest average sea temperature) is June (29.5°C).
The coldest month (with the lowest average sea temperature) is February (26.7°C).
Average daylight in September /
Average sunshine in September
Santander, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in September
Santander, Philippines
- Average sunshine days in September: 7.3 days
The month with the most sunshine days is August (7.7 days).
The month with the least sunshine days is November (2.1 days).
Average UV index in September
Santander, Philippines
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Santander, Philippines
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is April (Cloud cover 28).
Average visibility in September
Santander, Philippines
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
