Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The onset of September notes an average high-temperature of a still warm 29.6°C (85.3°F), subtly shifted from August's 29.9°C (85.8°F). Nighttime, during September, brings an average low of 25.5°C (77.9°F), a modest reduction from the day's peak.Heat index
In September, the average heat index is estimated at a torrid 36°C (96.8°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.Data suggests that the heat index is set for environments in shade and with a light wind. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. 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. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
In Kalawisan, the average relative humidity in September is 77%.Rainfall
In Kalawisan, in September, during 20 rainfall days, 50mm (1.97") of precipitation is typically accumulated. Throughout the year, there are 248.5 rainfall days, and 824mm (32.44") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 11min.On the first day of September, sunrise is at 5:34 am and sunset at 5:53 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 5:35 pm PST.
Sunshine
In Kalawisan, Philippines, the average sunshine in September is 8.3h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index 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 unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 7 translates into these guidelines:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Kalawisan have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the highest UV index?
What are the months with the lowest UV index?
What is the UV index reading in September?
Average temperature in September
Kalawisan, Philippines
- Average high temperature in September: 29.6°C
The warmest month (with the highest average high temperature) is May (30.8°C).
The month with the lowest average high temperature is January (27.7°C).
- Average low temperature in September: 25.5°C
The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is February (24.3°C).
Average pressure in September
Kalawisan, Philippines
- Average pressure in September: 1009mbar
The month with the highest atmospheric pressure is February (1011.6mbar).
The month with the lowest atmospheric pressure is July (1008.6mbar).
Average wind speed in September
Kalawisan, Philippines
- Average wind speed in September: 11km/h
The windiest month (with the highest average wind speed) is January (16.6km/h).
The calmest month (with the lowest average wind speed) is May (8.5km/h).
Average humidity in September
Kalawisan, Philippines
- Average humidity in September: 77%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Kalawisan, Philippines
- Average rainfall in September: 50mm
The wettest month (with the highest rainfall) is November (116mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in September
Kalawisan, Philippines
- Average rainfall days in September: 20 days
The month with the highest number of rainy days is January (23.8 days).
The month with the least rainy days is April (17.2 days).
Average daylight in September /
Average sunshine in September
Kalawisan, 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 30min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Kalawisan, Philippines
- Average sunshine days in September: 8.7 days
The month with the most sunshine days is August (9.9 days).
The month with the least sunshine days is November (4 days).
Average UV index in September
Kalawisan, 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
Kalawisan, Philippines
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is April (Cloud cover 30).
Average visibility in September
Kalawisan, 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).
