May weather forecast
Ampitiya, Sri Lanka

May

Weather in May

May, the last month of the spring in Ampitiya, is another hot month, with an average temperature varying between 21.8°C (71.2°F) and 30.1°C (86.2°F).

Temperature

The advent of May brings an average high-temperature of a still hot 30.1°C (86.2°F), exhibiting minor difference from the previous month. In Ampitiya, May's nights observe an average temperature dip to a pleasant 21.8°C (71.2°F).

Heat index

In May, the heat index is appraised at a torrid 38°C (100.4°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In May, the average relative humidity is 80%.

Rainfall

In Ampitiya, in May, during 28.6 rainfall days, 163mm (6.42") of precipitation is typically accumulated. Throughout the year, there are 278.9 rainfall days, and 1477mm (58.15") of precipitation is accumulated.

Daylight

In May, the average length of the day is 12h and 27min.
On the first day of the month, sunrise is at 05:52 and sunset at 18:15. On the last day of May, sunrise is at 05:49 and sunset at 18:20 +0530.

Sunshine

The average sunshine in May is 10.4h.

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index in Ampitiya, Sri Lanka. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 6 in May translates into this advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Frequently asked questions

How hot does it get in May?
The average high-temperature and low-temperature during May are 30.1°C (86.2°F) and 21.8°C (71.2°F) respectively. In May, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is appraised at 38°C (100.4°F).
What is the average humidity in May?
In Ampitiya, Sri Lanka, the average relative humidity in May is 80%.
How many days does it rain in May?
In Ampitiya, in May, it is raining for 28.6 days, with typically 163mm (6.42") of accumulated precipitation.
How many hours of daylight does Ampitiya have in May?
In Ampitiya, the average day length in May is 12h and 27min.
What time are sunrise and sunset in May?
In May, on the first day of the month, sunrise is at 05:52 and sunset at 18:15. On the last day of the month, sunrise is at 05:49 and sunset at 18:20 +0530.
How many hours of sunshine does Ampitiya have in May?
The average sunshine duration in May is 10.4h.
What is the month with the highest UV index?
January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index.
How high is the UV index in May?
The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May
Ampitiya, Sri Lanka
  • Average high temperature in May: 30.1°C

The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is December (27.5°C).

  • Average low temperature in May: 21.8°C

The months with the highest average low temperature are May and June (21.8°C).
The coldest month (with the lowest average low temperature) is February (18.1°C).

Average pressure in May
Ampitiya, Sri Lanka
  • Average pressure in May: 1008.2mbar

The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).

Average wind speed in May
Ampitiya, Sri Lanka
  • Average wind speed in May: 9.3km/h

The windiest month (with the highest average wind speed) is June (13.5km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).

Average humidity in May
Ampitiya, Sri Lanka
  • Average humidity in May: 80%

The month with the highest relative humidity is December (84%).
The month with the lowest relative humidity is March (74%).

Average rainfall in May
Ampitiya, Sri Lanka
  • Average rainfall in May: 163mm

The wettest month (with the highest rainfall) is October (301mm).
The driest month (with the least rainfall) is January (38mm).

Average rainfall days in May
Ampitiya, Sri Lanka
  • Average rainfall days in May: 28.6 days

The month with the highest number of rainy days is May (28.6 days).
The month with the least rainy days is January (14.1 days).

Average daylight in May /
Average sunshine in May
Ampitiya, Sri Lanka
  • Average daylight in May: 12h and 3min

The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).

  • Average sunshine in May: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in May
Ampitiya, Sri Lanka
  • Average sunshine days in May: 1.2 days

The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is May (1.2 days).

Average UV index in May
Ampitiya, Sri Lanka
  • Average UV index in May: 6

The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 6).
The month with the lowest UV index is October (UV index 5).

Average cloud cover in May
Ampitiya, Sri Lanka
  • Average cloud cover in May: 35

The months with the most cloud cover are November and December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 27).

Average visibility in May
Ampitiya, Sri Lanka
  • Average visibility in May: 9km

The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, November and December (8km).

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