September weather forecast
Batangas, Philippines

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Weather in September

September presents an ever-increasing amount of rainfall, marking its reign as the wettest month in Batangas. Despite this, sunlight struggles to hold its own with average daily sunshine hours retreating softly. The monsoon season continues its play with overcast skies filled with rain-bearing clouds. Cooler winds brush through the city, which is a harbinger of the wet trend cooling down as the region steps into October.

Temperature

Batangas's transition into September carries an average high-temperature of a still moderately hot 29.3°C (84.7°F), consistent with the temperature in August. Nights in September cool down in Batangas, Philippines, indicating a minor disparity from daytime highs with an average low-temperature of 24.3°C (75.7°F).

Heat index

The average heat index in September is estimated at a torrid 37°C (98.6°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

The months with the highest humidity are September and October, with an average relative humidity of 84%.

Rainfall

September is the month with the most rainfall in Batangas. Rain falls for 21.2 days and accumulates 105mm (4.13") of precipitation.

Sea temperature

In September, the average sea temperature is 28.6°C (83.5°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

The average length of the day in September in Batangas, Philippines, is 12h and 13min.
On the first day of the month, sunrise is at 5:44 am and sunset at 6:07 pm. On the last day of September, in Batangas, sunrise is at 5:45 am and sunset at 5:46 pm PST.

Sunshine

In Batangas, the average sunshine in September is 8.4h.

UV index

The months with the highest UV index in Batangas are February through June, August and September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 7 in September translates into the following instructions:
Avoid excessive sunlight. Those with lighter skin may 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. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Attention! UV radiation is markedly stronger with water and sand reflections.

Frequently asked questions

Is it hot in Batangas during September?

The high-temperature during September is 29.3°C (84.7°F) and the low-temperature is 24.3°C (75.7°F). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is estimated at 37°C (98.6°F).

What are the most humid months in Batangas?

September and October, with an average relative humidity of 84%, are most humid months.

What is the average humidity in September in Batangas?

In Batangas, the average relative humidity in September is 84%.

What is the wettest month in Batangas?

September is the month with the most rainfall. Rain falls for 21.2 days and accumulates 105mm (4.13") of precipitation.

How many days does it rain in September in Batangas?

In Batangas, during September, the rain falls for 21.2 days and regularly aggregates up to 105mm (4.13") of precipitation.

What is the water temperature in September in Batangas?

In Batangas, in September, the average water temperature is 28.6°C (83.5°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.

What is the average length of the day in September in Batangas?

In Batangas, the average day length in September is 12h and 13min.

When are sunrise and sunset in September in Batangas?

On the first day of September in Batangas, sunrise is at 5:44 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.

How many hours of sunshine does Batangas have in September?

In September, the average sunshine duration in Batangas, Philippines, is 8.4h.

What are the months with the highest UV index in Batangas?

The months with the highest UV index in Batangas, Philippines, are February through June, August and September, with an average maximum UV index of 7.

What is the UV index reading in September in Batangas?

The average daily maximum UV index in September in Batangas is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.

Average temperature in September
Batangas, Philippines

Average temperature in September - Batangas, Philippines
  • Average high temperature in September: 29.3°C

The warmest month (with the highest average high temperature) is May (31.4°C).
The month with the lowest average high temperature is January (27.3°C).

  • Average low temperature in September: 24.3°C

The month with the highest average low temperature is May (25.5°C).
The coldest month (with the lowest average low temperature) is February (22.6°C).

Average pressure in September
Batangas, Philippines

Average pressure in September - Batangas, Philippines
  • Average pressure in September: 1008.3mbar

The month with the highest atmospheric pressure is February (1012.8mbar).
The month with the lowest atmospheric pressure is August (1007.8mbar).

Average wind speed in September
Batangas, Philippines

Average wind speed in September - Batangas, Philippines
  • Average wind speed in September: 8.4km/h

The windiest month (with the highest average wind speed) is January (13.3km/h).
The calmest month (with the lowest average wind speed) is May (7.9km/h).

Average humidity in September
Batangas, Philippines

Average humidity in September - Batangas, Philippines
  • Average humidity in September: 84%

The months with the highest relative humidity are September and October (84%).
The month with the lowest relative humidity is April (75%).

Average rainfall in September
Batangas, Philippines

Average rainfall in September - Batangas, Philippines
  • Average rainfall in September: 105mm

The wettest month (with the highest rainfall) is September (105mm).
The driest month (with the least rainfall) is March (17mm).

Average rainfall days in September
Batangas, Philippines

Average rainfall days in September - Batangas, Philippines
  • Average rainfall days in September: 21.2 days

The month with the highest number of rainy days is October (23.1 days).
The month with the least rainy days is March (12.2 days).

Average sea temperature in September
Batangas, Philippines

Average sea temperature in September - Batangas, Philippines
  • Average sea temperature in September: 28.6°C

The best months for swimming (with the highest average sea temperature) are May and June (29.8°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).

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

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

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in September
Batangas, Philippines

Average sunshine days in September - Batangas, Philippines
  • Average sunshine days in September: 6.8 days

The month with the most sunshine days is March (13.2 days).
The month with the least sunshine days is November (3.5 days).

Average UV index in September
Batangas, Philippines

Average UV index in September - Batangas, Philippines
  • Average UV index in September: 7

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

Average cloud cover in September
Batangas, Philippines

Average cloud cover in September - Batangas, Philippines
  • Average cloud cover in September: 43

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is April (Cloud cover 27).

Average visibility in September
Batangas, Philippines

Average visibility in September - Batangas, Philippines
  • Average visibility in September: 9km

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

Batangas, Philippines

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