May weather forecast
Medan, Indonesia

May attracts increased rainfall with an impressive average of 105mm (4.13"). The month is characterized by frequent warm afternoons, although nights offer a considerably more pleasant respite. Prepare for higher chances of encountering precipitation, though showers are often brief. May's climate persists with high humidity levels, making it feel slightly hotter than it actually is. All in all, despite the onset of rains, warmth dominates the days in Medan during May.

Temperature

May in Medan brings an average high-temperature of a still hot 33.1°C (91.6°F), nearly identical to the preceding month. Medan records an average low of 24.3°C (75.7°F) throughout the nights in May.

Heat index

The heat index for May is computed to be a blazing hot 47°C (116.6°F). Beware: Heat exhaustion along with heat cramps are on the cards. Heatstroke could result from sustained physical activity.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

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

Rainfall

In Medan, Indonesia, in May, during 24.7 rainfall days, 105mm (4.13") of precipitation is typically accumulated. In Medan, during the entire year, the rain falls for 298 days and collects up to 1172mm (46.14") of precipitation.

Daylight

The average length of the day in May is 12h and 17min.
On the first day of the month, sunrise is at 06:14 and sunset at 18:29. On the last day of May, sunrise is at 06:13 and sunset at 18:32 WIB.

Sunshine

The average sunshine in May is 8.9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Medan. The months with the lowest UV index in Medan are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 7 during May translates into the following directions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. 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. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.