March weather forecast
Dumai, Indonesia

The first month of the spring, March, is also a hot month in Dumai, Indonesia, with an average temperature varying between 24.3°C (75.7°F) and 32°C (89.6°F).

Temperature

Dumai signifies an average high-temperature of a still hot 32°C (89.6°F) in March, closely mirroring the 31.5°C (88.7°F) of February. During the nights in March, Dumai experiences a consistent average temperature of 24.3°C (75.7°F).

Heat index

The heat index value during March is calculated to be a scorching 44°C (111.2°F). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The average relative humidity in March is 79%.

Rainfall

In Dumai, in March, it is raining for 24.9 days, with typically 93mm (3.66") of accumulated precipitation. In Dumai, during the entire year, the rain falls for 286.4 days and collects up to 1200mm (47.24") of precipitation.

Sea temperature

In Dumai, in March, the average water temperature is 29.3°C (84.7°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In March, the average length of the day is 12h and 7min.
On the first day of the month, sunrise is at 06:24 and sunset at 18:29. On the last day of March, sunrise is at 06:14 and sunset at 18:22 WIB.

Sunshine

In Dumai, the average sunshine in March is 8.4h.

UV index

January through September and November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In March, the UV index of 7 transforms into the following advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Alert! Sand and water increase UV exposure due to their reflective properties.