May weather forecast
Lahad Datu, Malaysia

May brings the highest temperature of the year, averaging at 31.4°C (88.5°F), distinguishing it from April's weather pattern. Despite the rise in heat, the rainfall volume also sees an increase from 109mm (4.29") to 130mm (5.12"), maintaining the humid environment. The sea temperature also spikes to 29.6°C (85.3°F), contributing to the tropical city's overall warmth. Winds slow down further, increasing the suffocating heat sensation of the days. This makes May the hottest and one of the more humid months of the year in Lahad Datu.

Temperature

Lahad Datu's warmest month, May, generally records average temperatures ranging from a high of 31.4°C (88.5°F) to a low of 22.7°C (72.9°F).

Heat index

May's mean heat index is computed to be a blistering 44°C (111.2°F). Forewarned: Heat cramps and heat exhaustion are anticipated. Ongoing physical activity increases the likelihood of heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in May is 84%.

Rainfall

In Lahad Datu, during May, the rain falls for 26.9 days and regularly aggregates up to 130mm (5.12") of precipitation. In Lahad Datu, during the entire year, the rain falls for 293.8 days and collects up to 1354mm (53.31") of precipitation.

Sea temperature

In Lahad Datu, in May, the average water temperature is 29.6°C (85.3°F).
Note: In water temperatures ranging between 25°C (77°F) and 29°C (84.2°F), activities such as swimming and diving become highly pleasurable for long durations.

Daylight

In May, the average length of the day is 12h and 21min.
On the first day of May, sunrise is at 5:54 am and sunset at 6:12 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 6:16 pm +08.

Sunshine

May has the most sunshine of the year, with an average of 9.9h of sunshine.

UV index

The months with the highest UV index are March through July, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 7 in May translates into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Stay cautious! Sand and water reflections increase UV radiation potency.