September weather forecast
Semirara, Philippines

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Semirara, Philippines, with temperature in the range of an average high of 28.7°C (83.7°F) and an average low of 25.6°C (78.1°F).

Temperature

In Semirara, the months of January, July and September are known for the lowest temperatures, reaching an average high of 28.7°C (83.7°F).

Heat index

September's average heat index is evaluated at a hot 34°C (93.2°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. 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 especially crucial for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

The months with the highest humidity are July through September, with an average relative humidity of 80%.

Rainfall

In Semirara, in September, it is raining for 25 days, with typically 172mm (6.77") of accumulated precipitation. Throughout the year, there are 179.3 rainfall days, and 1123mm (44.21") of precipitation is accumulated.

Sea temperature

In Semirara, in September, the average water temperature is 28.5°C (83.3°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.

Daylight

In Semirara, the average length of the day in September is 12h and 12min.
On the first day of September, sunrise is at 5:43 am and sunset at 6:04 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 5:45 pm PST.

Sunshine

In September, the average sunshine is 8.1h.

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 reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum daily UV index of 7 during September morphs into the following directions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Alert! Sand and water increase UV exposure due to their reflective properties.

Frequently asked questions

What month is the coldest?
Semirara's lowest temperatures tend to occur in January, July and September, with an average high-temperature of 28.7°C (83.7°F).
How hot is September?
In Semirara, 28.7°C (83.7°F) is the average high-temperature and 25.6°C (78.1°F) is the average low-temperature during September. In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 34°C (93.2°F).
What are the most humid months in Semirara?
July through September, with an average relative humidity of 80%, are most humid months in Semirara.
What is the average humidity in September?
In September, the average relative humidity is 80%.
How much does it rain in September?
In Semirara, in September, during 25 rainfall days, 172mm (6.77") of precipitation is typically accumulated.
What is the water temperature in September?
In Semirara, the average seawater temperature in September is 28.5°C (83.3°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.
How many hours of daylight does Semirara have in September?
The average day length in September is 12h and 12min.
When is the sunrise / sunset in September?
On the first day of September, sunrise is at 5:43 am and sunset at 6:04 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 5:45 pm PST.
How long on average sun shines in September?
In September, the average sunshine duration in Semirara is 8.1h.
What are the months with the highest UV index?
January through December, with an average maximum UV index of 7, are months with the highest UV index.
What are the months with the lowest UV index?
The months with the lowest UV index are January through December, with an average maximum UV index of 7.
How high is the UV index in September?
In September, the average daily maximum UV index is 7. A UV Index 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 sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Semirara, Philippines
Average temperature in September
Semirara, Philippines
  • Average high temperature in September: 28.7°C

The warmest month (with the highest average high temperature) is May (31.2°C).
The months with the lowest average high temperature are January, July and September (28.7°C).

  • Average low temperature in September: 25.6°C

The month with the highest average low temperature is May (26.9°C).
The coldest month (with the lowest average low temperature) is February (24.3°C).

Average pressure in September - Semirara, Philippines
Average pressure in September
Semirara, Philippines
  • Average pressure in September: 1008.6mbar

The month with the highest atmospheric pressure is February (1012mbar).
The month with the lowest atmospheric pressure is July (1008.1mbar).

Average wind speed in September - Semirara, Philippines
Average wind speed in September
Semirara, Philippines
  • Average wind speed in September: 11.4km/h

The windiest month (with the highest average wind speed) is January (17.1km/h).
The calmest month (with the lowest average wind speed) is May (9.5km/h).

Average humidity in September - Semirara, Philippines
Average humidity in September
Semirara, Philippines
  • Average humidity in September: 80%

The months with the highest relative humidity are July, August and September (80%).
The months with the lowest relative humidity are March and April (72%).

Average rainfall in September - Semirara, Philippines
Average rainfall in September
Semirara, Philippines
  • Average rainfall in September: 172mm

The wettest month (with the highest rainfall) is July (270mm).
The driest months (with the least rainfall) are January and February (6mm).

Average rainfall days in September - Semirara, Philippines
Average rainfall days in September
Semirara, Philippines
  • Average rainfall days in September: 25 days

The month with the highest number of rainy days is July (27.2 days).
The month with the least rainy days is February (2.9 days).

Average sea temperature in September - Semirara, Philippines
Average sea temperature in September
Semirara, Philippines
  • Average sea temperature in September: 28.5°C

The best month for swimming (with the highest average sea temperature) is June (30°C).
The coldest months (with the lowest average sea temperature) are January, February and March (27.2°C).

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

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 24min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is April (Average sunshine: 11h and 42min).
The months with the least sunshine are January and December (Average sunshine: 7h and 12min).

Average sunshine days in September - Semirara, Philippines
Average sunshine days in September
Semirara, Philippines
  • Average sunshine days in September: 4 days

The month with the most sunshine days is March (24.8 days).
The month with the least sunshine days is July (2.8 days).

Average UV index in September - Semirara, Philippines
Average UV index in September
Semirara, 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 - Semirara, Philippines
Average cloud cover in September
Semirara, Philippines
  • Average cloud cover in September: 45

The month with the most cloud cover is July (Cloud cover 52).
The months with the least cloud cover are February and March (Cloud cover 17).

Average visibility in September - Semirara, Philippines
Average visibility in September
Semirara, Philippines
  • Average visibility in September: 10km

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

englishespañol中文
Share