May weather forecastManipay, Sri Lanka
May
Weather in May
May, the last month of the spring in Manipay, is another hot month, with an average temperature fluctuating between 29°C (84.2°F) and 30.3°C (86.5°F).Temperature
During May, the average high-temperature is a still tropical 30.3°C (86.5°F), maintaining a close resemblance to that of the preceding month. Manipay encounters an average temperature dip to a moderately hot 29°C (84.2°F) throughout May, subtly lower than its daytime maximum.Heat index
May's average heat index is appraised at a sweltering 38°C (100.4°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. 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 extremely significant for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
The months with the highest humidity in Manipay are May, August and September, with an average relative humidity of 79%.Rainfall
In Manipay, in May, during 6.9 rainfall days, 26mm (1.02") of precipitation is typically accumulated. Throughout the year, in Manipay, there are 148.6 rainfall days, and 769mm (30.28") of precipitation is accumulated.Daylight
In Manipay, the average length of the day in May is 12h and 34min.On the first day of May in Manipay, sunrise is at 05:52 and sunset at 18:21. On the last day of the month, sunrise is at 05:48 and sunset at 18:27 +0530.
Sunshine
In May, the average sunshine is 11.5h.UV index
The months with the highest UV index are January through October and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 7 during May leads to these instructions:
Take precautions against overexposure. Protection against sun damage is needed. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Manipay, Sri Lanka
- Average high temperature in May: 30.3°C
The warmest month (with the highest average high temperature) is April (30.4°C).
The month with the lowest average high temperature is January (26.8°C).
- Average low temperature in May: 29°C
The month with the highest average low temperature is May (29°C).
The coldest month (with the lowest average low temperature) is January (25.5°C).
Average pressure in May
Manipay, Sri Lanka
- Average pressure in May: 1006.5mbar
The month with the highest atmospheric pressure is January (1012.5mbar).
The month with the lowest atmospheric pressure is June (1005.9mbar).
Average wind speed in May
Manipay, Sri Lanka
- Average wind speed in May: 28.5km/h
The windiest month (with the highest average wind speed) is June (33.8km/h).
The calmest months (with the lowest average wind speed) are March and April (16.7km/h).
Average humidity in May
Manipay, Sri Lanka
- Average humidity in May: 79%
The months with the highest relative humidity are May, August and September (79%).
The month with the lowest relative humidity is March (75%).
Average rainfall in May
Manipay, Sri Lanka
- Average rainfall in May: 26mm
The wettest month (with the highest rainfall) is October (191mm).
The driest month (with the least rainfall) is March (13mm).
Average rainfall days in May
Manipay, Sri Lanka
- Average rainfall days in May: 6.9 days
The month with the highest number of rainy days is October (22.6 days).
The month with the least rainy days is March (5.8 days).
Average daylight in May /
Average sunshine in May
Manipay, Sri Lanka
- Average daylight in May: 12h and 36min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in May: 11h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in May
Manipay, Sri Lanka
- Average sunshine days in May: 23.7 days
The month with the most sunshine days is March (23.9 days).
The month with the least sunshine days is November (6.3 days).
Average UV index in May
Manipay, Sri Lanka
- Average UV index in May: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and December (UV index 7).
The month with the lowest UV index is November (UV index 6).
Average cloud cover in May
Manipay, Sri Lanka
- Average cloud cover in May: 23
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 16).
Average visibility in May
Manipay, Sri Lanka
- 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).





