September weather forecast
San Teodoro, Philippines

The first month of the autumn, September, is still a warm month in San Teodoro, Philippines, with an average temperature ranging between min 25.5°C (77.9°F) and max 29.1°C (84.4°F).

Temperature

With the advent of September, San Teodoro's high-temperatures adjust to a still warm 29.1°C (84.4°F), closely aligning with the preceding month. In San Teodoro, the September nights are characterized by an average low-temperature of 25.5°C (77.9°F), a minor dip from daytime readings.

Heat index

September's heat index is calculated to be a very hot 35°C (95°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in September in San Teodoro is 80%.

Rainfall

In September, in San Teodoro, the rain falls for 15.3 days. Throughout September, 80mm (3.15") of precipitation is accumulated. Throughout the year, there are 177.1 rainfall days, and 780mm (30.71") of precipitation is accumulated.

Sea temperature

In San Teodoro, the average seawater temperature in September is 28.5°C (83.3°F).
Note: Water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm, making water activities enjoyable for prolonged periods without any uncomfortable sensations.

Daylight

In September, the average length of the day in San Teodoro, Philippines, is 12h and 13min.
On the first day of September, 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.

Sunshine

In San Teodoro, Philippines, the average sunshine in September is 8.8h.

UV index

The months with the highest UV index in San Teodoro are February through September and November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be mindful! Sand and water reflections can up the Sun's UV exposure.