May weather forecast
Jayapura, Indonesia

May, the last month of the autumn in Jayapura, is another warm month, with an average temperature fluctuating between 23.7°C (74.7°F) and 29.1°C (84.4°F).

Temperature

The transition into May shows a subtle variation to a still warm 29.1°C (84.4°F) from April's 28.7°C (83.7°F) in the average high-temperature. Jayapura experiences a mean low-temperature of 23.7°C (74.7°F) during May.

Heat index

During May, the heat index is estimated at a torrid 36°C (96.8°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In May, the average relative humidity is 85%.

Rainfall

In Jayapura, during May, the rain falls for 28.5 days and regularly aggregates up to 224mm (8.82") of precipitation. In Jayapura, during the entire year, the rain falls for 327.5 days and collects up to 2689mm (105.87") of precipitation.

Sea temperature

In May, the average sea temperature is 29.7°C (85.5°F).
Note: Surface water temperatures falling between 25°C (77°F) and 29°C (84.2°F) are regarded as prime and extremely agreeable for enduring periods during any water activity.

Daylight

In Jayapura, the average length of the day in May is 12h and 0min.
On the first day of the month, sunrise is at 05:33 and sunset at 17:35. On the last day of May, sunrise is at 05:35 and sunset at 17:34 WIT.

Sunshine

The month with the most sunshine is May, with an average of 8.2h of sunshine.

UV index

The months with the highest UV index are March through May, September through November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: During May, 7 as the daily maximum UV index converts into the following advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.