October weather forecast
San Juan, Philippines

October, like September, in San Juan, Philippines, is a moderately hot autumn month, with an average temperature ranging between min 24.3°C (75.7°F) and max 29.5°C (85.1°F).

Temperature

The arrival of October brings an average high-temperature of a still warm 29.5°C (85.1°F), closely following the temperature pattern of September. In San Juan, the nighttime temperature averages to a still moderately hot 24.3°C (75.7°F) during October.

Heat index

The heat index value during October is calculated to be a sweltering 37°C (98.6°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The average relative humidity in October in San Juan is 82%.

Rainfall

In San Juan, during October, the rain falls for 18.6 days and regularly aggregates up to 45mm (1.77") of precipitation. In San Juan, during the entire year, the rain falls for 196.1 days and collects up to 602mm (23.7") of precipitation.

Daylight

In October, the average length of the day in San Juan is 11h and 49min.
On the first day of the month, sunrise is at 5:45 am and sunset at 5:45 pm. On the last day of October, in San Juan, sunrise is at 5:50 am and sunset at 5:27 pm PST.

Sunshine

The average sunshine in October is 8h.

UV index

The months with the highest UV index in San Juan, Philippines, are February through November, 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 average person.
Note: A maximum high UV index of 7 in October translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.