May weather forecastBolon, Indonesia
May
Weather in May
The last month of the autumn, May, is also a moderately hot month in Bolon, Indonesia, with an average temperature varying between 29.3°C (84.7°F) and 23.9°C (75°F).Temperature
May brings an average high-temperature of a still moderately hot 29.3°C (84.7°F), replicating the temperature from the preceding month. During May, the average low-temperature in Bolon, Indonesia, is a still warm 23.9°C (75°F).Heat index
The heat index in May is computed to be a fiery hot 36°C (96.8°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.In reference to the heat index, it's for places in shade and with a slight wind. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
May and June, with an average relative humidity of 82%, are the most humid months.Rainfall
In May, in Bolon, Indonesia, the rain falls for 22.7 days. Throughout May, 94mm (3.7") of precipitation is accumulated. In Bolon, during the entire year, the rain falls for 245 days and collects up to 906mm (35.67") of precipitation.Daylight
The average length of the day in May is 11h and 46min.On the first day of the month, sunrise is at 05:38 and sunset at 17:29. On the last day of May, sunrise is at 05:43 and sunset at 17:26 WIB.
Sunshine
In May, the average sunshine is 8.7h.UV index
February through May, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: During May, 7 as the daily maximum UV index converts into the following advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Bolon, Indonesia
- Average high temperature in May: 29.3°C
The warmest month (with the highest average high temperature) is October (29.4°C).
The month with the lowest average high temperature is July (27.8°C).
- Average low temperature in May: 23.9°C
The months with the highest average low temperature are January and November (24.3°C).
The coldest month (with the lowest average low temperature) is August (21.9°C).
Average pressure in May
Bolon, Indonesia
- Average pressure in May: 1010.2mbar
The months with the highest atmospheric pressure are August and September (1011.9mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).
Average wind speed in May
Bolon, Indonesia
- Average wind speed in May: 11.1km/h
The windiest month (with the highest average wind speed) is August (14.5km/h).
The calmest month (with the lowest average wind speed) is March (8.4km/h).
Average humidity in May
Bolon, Indonesia
- Average humidity in May: 82%
The months with the highest relative humidity are May and June (82%).
The months with the lowest relative humidity are September and October (79%).
Average rainfall in May
Bolon, Indonesia
- Average rainfall in May: 94mm
The wettest month (with the highest rainfall) is January (126mm).
The driest month (with the least rainfall) is August (14mm).
Average rainfall days in May
Bolon, Indonesia
- Average rainfall days in May: 22.7 days
The months with the highest number of rainy days are January, March and November (24.7 days).
The month with the least rainy days is August (11.4 days).
Average daylight in May /
Average sunshine in May
Bolon, Indonesia
- Average daylight in May: 11h and 48min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is February (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).
Average sunshine days in May
Bolon, Indonesia
- Average sunshine days in May: 6.3 days
The month with the most sunshine days is August (11.6 days).
The month with the least sunshine days is November (3.4 days).
Average UV index in May
Bolon, Indonesia
- Average UV index in May: 7
The months with the highest UV index are February, March, April, May, September, October, November and December (UV index 7).
The months with the lowest UV index are January, June, July and August (UV index 6).
Average cloud cover in May
Bolon, Indonesia
- Average cloud cover in May: 36
The months with the most cloud cover are January and December (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 35).
Average visibility in May
Bolon, Indonesia
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





