June weather forecast
Calamba, Philippines

June, the first month of the summer in Calamba, is still a hot month, with an average temperature ranging between max 31°C (87.8°F) and min 24.8°C (76.6°F).

Temperature

June's advent denotes a minor fluctuation in the average high-temperature to a still tropical 31°C (87.8°F) from May's 32.2°C (90°F). In Calamba, in June, the average low-temperature is a moderately hot 24.8°C (76.6°F).

Heat index

June's heat index is calculated to be a blistering 42°C (107.6°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. 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. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

The average relative humidity in June is 82%.

Rainfall

The wettest months in Calamba, Philippines, are June and July, with an average 69mm (2.72") of rainfall.

Daylight

With an average of 13h and 0min of daylight, June has the longest days of the year in Calamba.
On the first day of the month, sunrise is at 5:26 am and sunset at 6:20 pm. On the last day of June, in Calamba, sunrise is at 5:30 am and sunset at 6:27 pm PST.

Sunshine

The average sunshine in June in Calamba is 9.9h.

UV index

The months with the highest UV index in Calamba, Philippines, are February through July, September and November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 7 in June converts into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.