May weather forecast
Pinnawala, Sri Lanka

May

Weather in May

May in Pinnawala is characterized by high humidity levels that reach an average of 86%, the highest point for the first half of the year. The arrival of May also brings an increase in daylight, allowing more hours for exploration and activities. But, the city also experiences a heightened level of rainfall consistent with late spring weather conditions. May signifies the transition from the moderate climate of early spring to the more humid and rainy conditions of the late spring months. Despite the rising humidity and rainfall, May’s weather conditions add to the tropical charm and beauty of Pinnawala.

Temperature

Pinnawala records an average high-temperature of a still moderately hot 27.3°C (81.1°F) as May arrives, nearly mirroring the previous month's climate. Pinnawala records a mean low-temperature of 19.1°C (66.4°F) in May.

Heat index

In May, the average heat index is computed to be a tropical 31°C (87.8°F). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.
Records show heat index calculations are tailored for shaded regions and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

In May, the average relative humidity is 86%.

Rainfall

In May, the rain falls for 29.8 days. Throughout May, 290mm (11.42") of precipitation is accumulated. Throughout the year, there are 297.4 rainfall days, and 2784mm (109.61") of precipitation is accumulated.

Daylight

The average length of the day in May in Pinnawala is 12h and 28min.
On the first day of the month, sunrise is at 05:53 and sunset at 18:17. On the last day of May, sunrise is at 05:50 and sunset at 18:21 +0530.

Sunshine

In May, the average sunshine is 9.1h.

UV index

The months with the highest UV index are February through September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. 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.

Frequently asked questions

What is the average May temperature?
An average high-temperature, in May, in Pinnawala, is 27.3°C (81.1°F) and the average low-temperature is 19.1°C (66.4°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in May is computed to be 31°C (87.8°F).
What is the average humidity in May?
In May, the average relative humidity is 86%.
How many days does it rain in May?
In Pinnawala, in May, during 29.8 rainfall days, 290mm (11.42") of precipitation is typically accumulated.
How many hours of daylight does Pinnawala have in May?
The average day length in May is 12h and 28min.
What time are sunrise and sunset in May?
On the first day of May, sunrise is at 05:53 and sunset at 18:17. On the last day of the month, sunrise is at 05:50 and sunset at 18:21 +0530.
How many hours of sunshine does Pinnawala have in May?
The average sunshine duration in May is 9.1h.
What is the month with the highest UV index?
February through September, with an average maximum UV index of 6, are months with the highest UV index.
What is the UV index intensity in May?
The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
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 - Pinnawala, Sri Lanka
Average temperature in May
Pinnawala, Sri Lanka
  • Average high temperature in May: 27.3°C

The warmest month (with the highest average high temperature) is April (27.6°C).
The month with the lowest average high temperature is December (24.3°C).

  • Average low temperature in May: 19.1°C

The month with the highest average low temperature is May (19.1°C).
The coldest month (with the lowest average low temperature) is February (15.3°C).

Average pressure in May - Pinnawala, Sri Lanka
Average pressure in May
Pinnawala, Sri Lanka
  • Average pressure in May: 1008.4mbar

The month with the highest atmospheric pressure is January (1011.7mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).

Average wind speed in May - Pinnawala, Sri Lanka
Average wind speed in May
Pinnawala, Sri Lanka
  • Average wind speed in May: 6.3km/h

The windiest month (with the highest average wind speed) is June (9.1km/h).
The calmest month (with the lowest average wind speed) is April (3.3km/h).

Average humidity in May - Pinnawala, Sri Lanka
Average humidity in May
Pinnawala, Sri Lanka
  • Average humidity in May: 86%

The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is March (80%).

Average rainfall in May - Pinnawala, Sri Lanka
Average rainfall in May
Pinnawala, Sri Lanka
  • Average rainfall in May: 290mm

The wettest month (with the highest rainfall) is October (656mm).
The driest month (with the least rainfall) is January (85mm).

Average rainfall days in May - Pinnawala, Sri Lanka
Average rainfall days in May
Pinnawala, Sri Lanka
  • Average rainfall days in May: 29.8 days

The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is February (16.3 days).

Average daylight in May / Average sunshine in May - Pinnawala, Sri Lanka
Average daylight in May /
Average sunshine in May
Pinnawala, 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: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

Average sunshine days in May - Pinnawala, Sri Lanka
Average sunshine days in May
Pinnawala, Sri Lanka
  • Average sunshine days in May: 0.8 days

The month with the most sunshine days is February (11 days).
The month with the least sunshine days is May (0.8 days).

Average UV index in May - Pinnawala, Sri Lanka
Average UV index in May
Pinnawala, Sri Lanka
  • Average UV index in May: 6

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

Average cloud cover in May - Pinnawala, Sri Lanka
Average cloud cover in May
Pinnawala, Sri Lanka
  • Average cloud cover in May: 52

The month with the most cloud cover is November (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 42).

Average visibility in May - Pinnawala, Sri Lanka
Average visibility in May
Pinnawala, Sri Lanka
  • Average visibility in May: 7km

The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are November and December (6km).

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