September weather forecast
Santander, Philippines

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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.
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Frequently asked questions

How hot does it get in Santander in September?

During September, Santander experiences an average high-temperature of 28.8°C (83.8°F) and a low-temperature of 26°C (78.8°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in September is calculated to be 34°C (93.2°F).

What is the average humidity in September in Santander?

The average relative humidity in September is 78%.

How many days does it rain in September in Santander?

In Santander, Philippines, during September, the rain falls for 21.6 days and regularly aggregates up to 62mm (2.44") of precipitation.

What is the sea water temperature in September in Santander?

In Santander, Philippines, the average seawater temperature in September is 29.3°C (84.7°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Santander have in September?

In Santander, the average day length in September is 12h and 11min.

When are sunrise and sunset in September in Santander?

In September, on the first day of the month, sunrise is at 5:37 am and sunset at 5:55 pm. On the last day of the month, in Santander, Philippines, sunrise is at 5:35 am and sunset at 5:38 pm PST.

How many hours of sunshine does Santander have in September?

In Santander, the average sunshine duration in September is 8.6h.

What are the months with the highest UV index in Santander?

The months with the highest UV index are January through December, with an average maximum UV index of 7.

When is the lowest UV index in Santander?

January through December, with an average maximum UV index of 7, are months with the lowest UV index in Santander.

How high is the UV index in September in Santander?

The average daily maximum UV index in September in Santander is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.

Average temperature in September
Santander, Philippines

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).

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Average pressure in September
Santander, Philippines

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).

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Average wind speed in September
Santander, Philippines

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).

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Average humidity in September
Santander, Philippines

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%).

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Average rainfall in September
Santander, Philippines

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).

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Average rainfall days in September
Santander, Philippines

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).

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Average sea temperature in September
Santander, Philippines

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).

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Average daylight in September /
Average sunshine in September
Santander, Philippines

Average daylight in September / Average sunshine in September - Santander, Philippines
  • Average daylight in September: 12h and 1min

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 4min

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).

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Average sunshine days in September
Santander, Philippines

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).

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Average UV index in September
Santander, Philippines

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).

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Average cloud cover in September
Santander, Philippines

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).

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Average visibility in September
Santander, Philippines

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).

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Santander, Philippines

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