May weather forecast
Tarakan, Indonesia

May, the last month of the spring in Tarakan, is also a hot month, with an average temperature ranging between max 30.7°C (87.3°F) and min 26.5°C (79.7°F).

Temperature

With an average high-temperature of 30.7°C (87.3°F) and an average low-temperature of 26.5°C (79.7°F), May is the warmest month.

Heat index

The average heat index in May is computed to be a torrid 39°C (102.2°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, metabolic differences, wind, and clothing affect individual temperature impact. 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 important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Tarakan, the average relative humidity in May is 77%.

Rainfall

In Tarakan, in May, it is raining for 28.1 days, with typically 205mm (8.07") of accumulated precipitation. In Tarakan, Indonesia, during the entire year, the rain falls for 329.3 days and collects up to 2189mm (86.18") of precipitation.

Sea temperature

The months with the warmest seawater in Tarakan are April through June, with an average sea temperature of 30°C (86°F).
Note: The surface water temperatures above 30°C (86°F) are arguably considered as unpleasant for swimming, and any intense water activity, as the refreshing effect of water is missing.

Daylight

The average length of the day in May is 12h and 16min.
On the first day of the month, sunrise is at 05:59 and sunset at 18:13. On the last day of May, sunrise is at 05:58 and sunset at 18:16 WITA.

Sunshine

May has the most sunshine of the year, with an average of 10.4h of sunshine.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Tarakan, Indonesia. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 7 in May transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.