June weather forecast
San Isidro, Philippines

June, the first month of the summer in San Isidro, is also a hot month, with temperature in the range of an average high of 31.6°C (88.9°F) and an average low of 24.2°C (75.6°F).

Temperature

San Isidro, Philippines, experiences a subtle adjustment in high-temperatures to a still tropical 31.6°C (88.9°F) with the onset of June, maintaining near parity with May's 33.3°C (91.9°F). Throughout June, San Isidro registers a consistent average low-temperature of 24.2°C (75.6°F).

Heat index

In June, the average heat index is computed to be an extremely hot 43°C (109.4°F). Stay on guard: Heat exhaustion and heat cramps are predicted. Ongoing effort can cause heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In June, the average relative humidity is 81%.

Rainfall

In San Isidro, during June, the rain falls for 27.8 days and regularly aggregates up to 218mm (8.58") of precipitation. In San Isidro, during the entire year, the rain falls for 252.9 days and collects up to 1795mm (70.67") of precipitation.

Daylight

With an average of 13h and 0min of daylight, June has the longest days of the year.
On the first day of June, sunrise is at 5:24 am and sunset at 6:23 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 6:30 pm PST.

Sunshine

The average sunshine in June is 9.3h.

UV index

February through June and August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: An average UV index of 7 in June transforms into this advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.