Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
March and April are identified as the warmest months, with an average high-temperature of 31.4°C (88.5°F).Heat index
For April, the heat index is computed to be a blisteringly hot 41°C (105.8°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.Note that heat index values are valued for light wind and location in the shade. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
In April, the average relative humidity in Niwanthidiya is 78%.Rainfall
In Niwanthidiya, during April, the rain falls for 24.4 days and regularly aggregates up to 99mm (3.9") of precipitation. Throughout the year, in Niwanthidiya, there are 272.3 rainfall days, and 2039mm (80.28") of precipitation is accumulated.Daylight
The average length of the day in April in Niwanthidiya is 12h and 17min.On the first day of the month, sunrise is at 06:08 and sunset at 18:19. On the last day of April, in Niwanthidiya, sunrise is at 05:56 and sunset at 18:18 +0530.
Sunshine
In April, the average sunshine is 9h.UV index
January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In April, the maximum UV index of 7 suggests these recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
What part of the year is the hottest in Niwanthidiya?
How hot does it get in Niwanthidiya in April?
What is the average humidity in April in Niwanthidiya?
How much does it rain in Niwanthidiya in April?
How many hours of daylight does Niwanthidiya have in April?
When are sunrise and sunset in April in Niwanthidiya?
How many hours of sunshine does Niwanthidiya have in April?
When is the highest UV index in Niwanthidiya?
What is the UV index intensity in April in Niwanthidiya?
Average temperature in April
Niwanthidiya, Sri Lanka
- Average high temperature in April: 31.4°C
The warmest months (with the highest average high temperature) are March and April (31.4°C).
The month with the lowest average high temperature is August (28.6°C).
- Average low temperature in April: 26°C
The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (23.3°C).
Average pressure in April
Niwanthidiya, Sri Lanka
- Average pressure in April: 1009.7mbar
The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).
Average wind speed in April
Niwanthidiya, Sri Lanka
- Average wind speed in April: 8.7km/h
The windiest month (with the highest average wind speed) is June (15.9km/h).
The calmest month (with the lowest average wind speed) is March (8km/h).
Average humidity in April
Niwanthidiya, Sri Lanka
- Average humidity in April: 78%
The months with the highest relative humidity are June, July and August (83%).
The month with the lowest relative humidity is January (74%).
Average rainfall in April
Niwanthidiya, Sri Lanka
- Average rainfall in April: 99mm
The wettest month (with the highest rainfall) is June (329mm).
The driest month (with the least rainfall) is January (37mm).
Average rainfall days in April
Niwanthidiya, Sri Lanka
- Average rainfall days in April: 24.4 days
The month with the highest number of rainy days is August (29.8 days).
The month with the least rainy days is January (11.2 days).
Average daylight in April /
Average sunshine in April
Niwanthidiya, Sri Lanka
- Average daylight in April: 12h and 2min
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 April: 9h and 0min
The month with the most sunshine is January (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).
Average sunshine days in April
Niwanthidiya, Sri Lanka
- Average sunshine days in April: 4.3 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is July (0.4 days).
Average UV index in April
Niwanthidiya, Sri Lanka
- Average UV index in April: 7
The months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
The months with the lowest UV index are May, June, August and October (UV index 6).
Average cloud cover in April
Niwanthidiya, Sri Lanka
- Average cloud cover in April: 38
The month with the most cloud cover is June (Cloud cover 55).
The month with the least cloud cover is January (Cloud cover 24).
Average visibility in April
Niwanthidiya, Sri Lanka
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).
Niwanthidiya, Sri Lanka
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