September weather forecastGairan, Philippines

September

Weather in September

September, the first month of the autumn in Gairan, is still a hot month, with an average temperature fluctuating between 30°C (86°F) and 26.5°C (79.7°F).

Temperature

September begins with an average high-temperature of a still hot 30°C (86°F), reflecting close similarity to the preceding month. In Gairan, the nighttime temperature in September descends gently to an average of 26.5°C (79.7°F).

Heat index

In September, the average heat index is estimated at a fiery hot 37°C (98.6°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. 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 quite important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In September, the average relative humidity in Gairan, Philippines, is 76%.

Rainfall

In September, the rain falls for 23.3 days. Throughout September, 107mm (4.21") of precipitation is accumulated. In Gairan, during the entire year, the rain falls for 257.7 days and collects up to 1413mm (55.63") of precipitation.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of September, sunrise is at 5:33 am and sunset at 5:53 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 5:34 pm PST.

Sunshine

In September, the average sunshine is 8.4h.

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 are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In September, a regular UV index of 7 translates into these guidelines:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.

Frequently asked questions

The high-temperature, in September, in Gairan, records 30°C (86°F), while the low-temperature is 26.5°C (79.7°F). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is estimated at 37°C (98.6°F).

In September, the average relative humidity is 76%.

In Gairan, during September, the rain falls for 23.3 days and regularly aggregates up to 107mm (4.21") of precipitation.

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

In September, on the first day of the month, sunrise is at 5:33 am and sunset at 5:53 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 5:34 pm PST.

In September, the average sunshine duration is 8.4h.

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 are January through December, with an average maximum UV index of 7.

The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
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
Gairan, Philippines

  • Average high temperature in September: 30°C

The warmest month (with the highest average high temperature) is May (31.3°C).
The month with the lowest average high temperature is January (28.2°C).

  • Average low temperature in September: 26.5°C

The months with the highest average low temperature are May and June (27.2°C).
The coldest month (with the lowest average low temperature) is February (25.2°C).

Average pressure in September
Gairan, Philippines

  • Average pressure in September: 1008.7mbar

The month with the highest atmospheric pressure is February (1011.9mbar).
The months with the lowest atmospheric pressure are July and August (1008.4mbar).

Average wind speed in September
Gairan, Philippines

  • Average wind speed in September: 11km/h

The windiest month (with the highest average wind speed) is January (18.1km/h).
The calmest month (with the lowest average wind speed) is May (8.6km/h).

Average humidity in September
Gairan, Philippines

  • Average humidity in September: 76%

The months with the highest relative humidity are January and December (80%).
The month with the lowest relative humidity is May (74%).

Average rainfall in September
Gairan, Philippines

  • Average rainfall in September: 107mm

The wettest month (with the highest rainfall) is December (187mm).
The driest month (with the least rainfall) is April (56mm).

Average rainfall days in September
Gairan, Philippines

  • Average rainfall days in September: 23.3 days

The month with the highest number of rainy days is October (26.5 days).
The month with the least rainy days is February (16.3 days).

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

  • Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).

  • Average sunshine in September: 8h and 24min

The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in September
Gairan, Philippines

  • Average sunshine days in September: 5.5 days

The month with the most sunshine days is April (10.8 days).
The month with the least sunshine days is October (3.5 days).

Average UV index in September
Gairan, 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
Gairan, Philippines

  • Average cloud cover in September: 40

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is May (Cloud cover 31).

Average visibility in September
Gairan, 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).