September weather forecastSan Vicente, Philippines

September

Weather in September

September, the first month of the autumn in San Vicente, is also a hot month, with temperature in the range of an average high of 30.5°C (86.9°F) and an average low of 24.7°C (76.5°F).

Temperature

The start of September sees the average high-temperature at a still hot 30.5°C (86.9°F), showing little difference from August's 30.3°C (86.5°F). September nights experience a consistent temperature drop to a moderately hot 24.7°C (76.5°F).

Heat index

The heat index value during September is calculated to be a blistering 40°C (104°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The months with the highest humidity are August and September, with an average relative humidity of 81%.

Rainfall

In San Vicente, in September, it is raining for 19.5 days, with typically 51mm (2.01") of accumulated precipitation. Throughout the year, in San Vicente, there are 154.1 rainfall days, and 342mm (13.46") of precipitation is accumulated.

Daylight

In September, the average length of the day in San Vicente is 12h and 13min.
On the first day of the month, sunrise is at 5:45 am and sunset at 6:09 pm. On the last day of September, in San Vicente, Philippines, sunrise is at 5:47 am and sunset at 5:47 pm PST.

Sunshine

In San Vicente, the average sunshine in September is 8.3h.

UV index

February through December, 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 vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.

Frequently asked questions

The average high-temperature, in September, in San Vicente, is 30.5°C (86.9°F), while the average low-temperature is 24.7°C (76.5°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 40°C (104°F).

August and September, with an average relative humidity of 81%, are most humid months in San Vicente, Philippines.

The average relative humidity in September is 81%.

In San Vicente, Philippines, in September, it is raining for 19.5 days, with typically 51mm (2.01") of accumulated precipitation.

The average day length in September in San Vicente is 12h and 13min.

On the first day of September, sunrise is at 5:45 am and sunset at 6:09 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 5:47 pm PST.

In San Vicente, the average sunshine duration in September is 8.3h.

February through December, with an average maximum UV index of 7, are months with the highest UV index in San Vicente, Philippines.

The average daily maximum UV index in September in San Vicente, Philippines, is 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
San Vicente, Philippines

  • Average high temperature in September: 30.5°C

The warmest month (with the highest average high temperature) is May (33.3°C).
The month with the lowest average high temperature is January (28.3°C).

  • Average low temperature in September: 24.7°C

The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.9°C).

Average pressure in September
San Vicente, Philippines

  • Average pressure in September: 1008.2mbar

The month with the highest atmospheric pressure is February (1013.4mbar).
The month with the lowest atmospheric pressure is August (1007.6mbar).

Average wind speed in September
San Vicente, Philippines

  • Average wind speed in September: 8.1km/h

The windiest month (with the highest average wind speed) is January (11.5km/h).
The calmest month (with the lowest average wind speed) is May (7.4km/h).

Average humidity in September
San Vicente, Philippines

  • Average humidity in September: 81%

The months with the highest relative humidity are August and September (81%).
The month with the lowest relative humidity is April (70%).

Average rainfall in September
San Vicente, Philippines

  • Average rainfall in September: 51mm

The wettest month (with the highest rainfall) is August (70mm).
The driest month (with the least rainfall) is February (3mm).

Average rainfall days in September
San Vicente, Philippines

  • Average rainfall days in September: 19.5 days

The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is February (3.9 days).

Average daylight in September /
Average sunshine in September
San Vicente, Philippines

  • Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in September: 8h and 18min

The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).

Average sunshine days in September
San Vicente, Philippines

  • Average sunshine days in September: 7.5 days

The month with the most sunshine days is March (18 days).
The month with the least sunshine days is June (6.4 days).

Average UV index in September
San Vicente, Philippines

  • Average UV index in September: 7

The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).

Average cloud cover in September
San Vicente, Philippines

  • Average cloud cover in September: 44

The month with the most cloud cover is August (Cloud cover 51).
The month with the least cloud cover is April (Cloud cover 26).

Average visibility in September
San Vicente, Philippines

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are July, August, September and October (9km).