September weather forecastImmaculate Concepcion, Philippines

September

Weather in September

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

Temperature

Immaculate Concepcion, Philippines, experiences a subtle adjustment in high-temperatures to a still tropical 30.5°C (86.9°F) with the onset of September, maintaining near parity with August's 30.3°C (86.5°F). The mean low-temperature during September nights in Immaculate Concepcion is a moderately hot 24.7°C (76.5°F).

Heat index

During September, the heat index is calculated to be an extremely hot 40°C (104°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

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

Rainfall

In Immaculate Concepcion, in September, it is raining for 19.5 days, with typically 51mm (2.01") of accumulated precipitation. In Immaculate Concepcion, Philippines, during the entire year, the rain falls for 154.1 days and collects up to 342mm (13.46") of precipitation.

Daylight

In Immaculate Concepcion, the average length of the day in September is 12h and 13min.
On the first day of September in Immaculate Concepcion, sunrise is at 5:43 am and sunset at 6:07 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 5:46 pm PST.

Sunshine

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 reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In September, a regular UV index of 7 translates into these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

In Immaculate Concepcion, 30.5°C (86.9°F) is the average high-temperature and 24.7°C (76.5°F) is the average low-temperature during September. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in September is calculated to be 40°C (104°F).

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

The average relative humidity in September in Immaculate Concepcion, Philippines, is 81%.

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

In Immaculate Concepcion, Philippines, the average day length in September is 12h and 13min.

On the first day of September in Immaculate Concepcion, sunrise is at 5:43 am and sunset at 6:07 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 5:46 pm PST.

In Immaculate Concepcion, Philippines, the average sunshine duration in September is 8.3h.

The months with the highest UV index in Immaculate Concepcion, Philippines, are February through December, with an average maximum UV index of 7.

The average daily maximum UV index in September in Immaculate Concepcion, Philippines, is 7. A UV Index estimate of 6 to 7 represents a high health threat 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
Immaculate Concepcion, 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
Immaculate Concepcion, 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
Immaculate Concepcion, 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
Immaculate Concepcion, 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
Immaculate Concepcion, 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
Immaculate Concepcion, 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
Immaculate Concepcion, 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
Immaculate Concepcion, 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
Immaculate Concepcion, 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
Immaculate Concepcion, 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
Immaculate Concepcion, 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).