March weather forecast
Polonnaruwa, Sri Lanka

March

Weather in March

March heralds a stark contrast in Polonnaruwa's weather, as it departs from the cool and damp February to embrace relatively warmer and drier weather. The onset of the typically hot tropical climate in Sri Lanka is distinguishable. As a prelude to the hot and dry April, March experiences an average high temperature of 33.8°C (92.8°F). The month concludes with a growing anticipation of the heat wave in the succeeding month.

Temperature

The onset of March brings an average high-temperature of a still tropical 33.8°C (92.8°F), nearly matching the February temperature. Polonnaruwa, in March, experiences a marked contrast from daytime zeniths to a steady average low-temperature of 21.1°C (70°F).

Heat index

March's mean heat index is evaluated at a blazing hot 48°C (118.4°F). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.
One should consider that heat index numbers are for shaded settings and light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In March, the average relative humidity is 73%.

Rainfall

In Polonnaruwa, in March, it is raining for 14 days, with typically 38mm (1.5") of accumulated precipitation. Throughout the year, there are 196.8 rainfall days, and 943mm (37.13") of precipitation is accumulated.

Daylight

The average length of the day in March is 12h and 5min.
On the first day of the month, sunrise is at 06:18 and sunset at 18:17. On the last day of March, sunrise is at 06:04 and sunset at 18:15 +0530.

Sunshine

The average sunshine in March is 9.1h.

UV index

February through October, 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 health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: An average maximum UV index of 7 in March leads to these recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Frequently asked questions

How hot does it get in March?
During March, Polonnaruwa experiences an average high-temperature of 33.8°C (92.8°F) and a low-temperature of 21.1°C (70°F). In March, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 48°C (118.4°F).
What is the average humidity in March?
In March, the average relative humidity is 73%.
How many days does it rain in March in Polonnaruwa?
In Polonnaruwa, during March, the rain falls for 14 days and regularly aggregates up to 38mm (1.5") of precipitation.
What is the average length of the day in March?
In March, the average day length is 12h and 5min.
When is the sunrise / sunset in March?
On the first day of March, sunrise is at 06:18 and sunset at 18:17. On the last day of the month, sunrise is at 06:04 and sunset at 18:15 +0530.
How many hours of sunshine does Polonnaruwa have in March?
In March, the average sunshine duration is 9.1h.
What are the months with the highest UV index?
February through October, with an average maximum UV index of 7, are months with the highest UV index.
What is the UV index reading in March?
In March, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes 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 March
Polonnaruwa, Sri Lanka
  • Average high temperature in March: 33.8°C

The warmest month (with the highest average high temperature) is April (34.9°C).
The months with the lowest average high temperature are January and December (29.3°C).

  • Average low temperature in March: 21.1°C

The month with the highest average low temperature is June (24.8°C).
The coldest months (with the lowest average low temperature) are January and February (20°C).

Average pressure in March
Polonnaruwa, Sri Lanka
  • Average pressure in March: 1010.8mbar

The month with the highest atmospheric pressure is January (1012mbar).
The month with the lowest atmospheric pressure is June (1007.5mbar).

Average wind speed in March
Polonnaruwa, Sri Lanka
  • Average wind speed in March: 8.7km/h

The windiest month (with the highest average wind speed) is June (23.8km/h).
The calmest month (with the lowest average wind speed) is April (7.1km/h).

Average humidity in March
Polonnaruwa, Sri Lanka
  • Average humidity in March: 73%

The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are June, July, August and September (67%).

Average rainfall in March
Polonnaruwa, Sri Lanka
  • Average rainfall in March: 38mm

The wettest month (with the highest rainfall) is October (214mm).
The driest month (with the least rainfall) is June (15mm).

Average rainfall days in March
Polonnaruwa, Sri Lanka
  • Average rainfall days in March: 14 days

The month with the highest number of rainy days is November (24.1 days).
The month with the least rainy days is June (7.8 days).

Average daylight in March /
Average sunshine in March
Polonnaruwa, Sri Lanka
  • Average daylight in March: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).

  • Average sunshine in March: 9h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in March
Polonnaruwa, Sri Lanka
  • Average sunshine days in March: 14.5 days

The month with the most sunshine days is July (16 days).
The month with the least sunshine days is November (4.2 days).

Average UV index in March
Polonnaruwa, Sri Lanka
  • Average UV index in March: 7

The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, November and December (UV index 6).

Average cloud cover in March
Polonnaruwa, Sri Lanka
  • Average cloud cover in March: 27

The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is May (Cloud cover 26).

Average visibility in March
Polonnaruwa, Sri Lanka
  • Average visibility in March: 8km

The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January and December (7km).

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