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
April
Weather in April
Temperature
The warmest period is April, when temperatures fluctuate between an average high of 32.9°C (91.2°F) and a low of 22°C (71.6°F).Heat index
The heat index in April is calculated to be a burning hot 46°C (114.8°F). Stay alert: Heat cramps and heat exhaustion are expected. Heatstroke is a likely outcome of ongoing activity.Keep in mind the heat index values are meant for areas in shade and with light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
In Naula, Sri Lanka, the average relative humidity in April is 76%.Rainfall
In Naula, Sri Lanka, in April, during 24.7 rainfall days, 120mm (4.72") of precipitation is typically accumulated. Throughout the year, there are 217.7 rainfall days, and 1165mm (45.87") of precipitation is accumulated.Daylight
The average length of the day in April is 12h and 18min.On the first day of the month, sunrise is at 06:05 and sunset at 18:17. On the last day of April, sunrise is at 05:52 and sunset at 18:16 +0530.
Sunshine
The average sunshine in April is 9.8h.UV index
The months with the highest UV index in Naula are March through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In April, the maximum UV index of 7 translates into these guidelines:
Deflect overexposure. Sun protection is a necessity. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest in Naula?
How hot does it get in Naula in April?
What is the average humidity in April in Naula?
How much does it rain in Naula in April?
What is the average length of the day in April in Naula?
When is the sunrise / sunset in April in Naula?
How long on average sun shines in April in Naula?
What is the month with the highest UV index in Naula?
What is the UV index intensity in April in Naula?
Average temperature in April
Naula, Sri Lanka
- Average high temperature in April: 32.9°C
The warmest month (with the highest average high temperature) is April (32.9°C).
The month with the lowest average high temperature is December (28.6°C).
- Average low temperature in April: 22°C
The month with the highest average low temperature is May (23°C).
The coldest month (with the lowest average low temperature) is February (18.9°C).
Average pressure in April
Naula, Sri Lanka
- Average pressure in April: 1009.5mbar
The month with the highest atmospheric pressure is January (1011.9mbar).
The month with the lowest atmospheric pressure is June (1007.9mbar).
Average wind speed in April
Naula, Sri Lanka
- Average wind speed in April: 5.6km/h
The windiest month (with the highest average wind speed) is June (16.5km/h).
The calmest month (with the lowest average wind speed) is April (5.6km/h).
Average humidity in April
Naula, Sri Lanka
- Average humidity in April: 76%
The month with the highest relative humidity is December (83%).
The months with the lowest relative humidity are March and September (72%).
Average rainfall in April
Naula, Sri Lanka
- Average rainfall in April: 120mm
The wettest month (with the highest rainfall) is October (267mm).
The driest month (with the least rainfall) is June (29mm).
Average rainfall days in April
Naula, Sri Lanka
- Average rainfall days in April: 24.7 days
The month with the highest number of rainy days is April (24.7 days).
The month with the least rainy days is February (11.8 days).
Average daylight in April /
Average sunshine in April
Naula, Sri Lanka
- Average daylight in April: 12h and 2min
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 April: 9h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in April
Naula, Sri Lanka
- Average sunshine days in April: 4 days
The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is April (4 days).
Average UV index in April
Naula, Sri Lanka
- Average UV index in April: 7
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, October, November and December (UV index 6).
Average cloud cover in April
Naula, Sri Lanka
- Average cloud cover in April: 31
The months with the most cloud cover are November and December (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 24).
Average visibility in April
Naula, Sri Lanka
- Average visibility in April: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, November and December (8km).
