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 arrival of April brings an average high-temperature of a still moderately hot 28.9°C (84°F), closely following the temperature pattern of March. Throughout April, the average low-temperature dips to a comfortable 17.2°C (63°F).Heat index
April's heat index is evaluated at a hot 30°C (86°F). Constant activity during exposure could result in a state of weariness and possibly heat cramps.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
In Calai, the average relative humidity in April is 54%.Rainfall
In Calai, in April, it is raining for 7.2 days, with typically 22mm (0.87") of accumulated precipitation. In Calai, during the entire year, the rain falls for 89 days and collects up to 324mm (12.76") of precipitation.Daylight
In April, the average length of the day in Calai is 11h and 41min.On the first day of April, sunrise is at 05:47 and sunset at 17:41. On the last day of the month, sunrise is at 05:54 and sunset at 17:21 WAT.
Sunshine
The average sunshine in April is 9.6h.UV index
The average daily maximum UV index in April is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 6 in April interprets into the following recommendations:
Fend off overexposure. Sun protection is vital. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. 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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in April?
What is the average humidity in April?
How much does it rain in April?
How many hours of daylight does Calai have in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
How high is the UV index in April?
Average temperature in April
Calai, Angola
- Average high temperature in April: 28.9°C
The warmest month (with the highest average high temperature) is October (36.3°C).
The month with the lowest average high temperature is June (25.4°C).
- Average low temperature in April: 17.2°C
The month with the highest average low temperature is November (21.8°C).
The coldest month (with the lowest average low temperature) is July (9.7°C).
Average pressure in April
Calai, Angola
- Average pressure in April: 1014.5mbar
The month with the highest atmospheric pressure is July (1020mbar).
The month with the lowest atmospheric pressure is January (1009.3mbar).
Average wind speed in April
Calai, Angola
- Average wind speed in April: 8.9km/h
The windiest month (with the highest average wind speed) is September (11.1km/h).
The calmest month (with the lowest average wind speed) is December (8.2km/h).
Average humidity in April
Calai, Angola
- Average humidity in April: 54%
The month with the highest relative humidity is February (65%).
The month with the lowest relative humidity is September (19%).
Average rainfall in April
Calai, Angola
- Average rainfall in April: 22mm
The wettest month (with the highest rainfall) is January (74mm).
The driest months (with the least rainfall) are June, July, August and September (0mm).
Average rainfall days in April
Calai, Angola
- Average rainfall days in April: 7.2 days
The month with the highest number of rainy days is December (18.6 days).
The month with the least rainy days is August (0 days).
Average daylight in April /
Average sunshine in April
Calai, Angola
- Average daylight in April: 11h and 4min
The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 6min).
- Average sunshine in April: 9h and 4min
The month with the most sunshine is November (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 9h and 0min).
Average sunshine days in April
Calai, Angola
- Average sunshine days in April: 22.1 days
The months with the most sunshine days are July and August (31 days).
The month with the least sunshine days is December (10.7 days).
Average UV index in April
Calai, Angola
- Average UV index in April: 6
The months with the highest UV index are September, October and December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 5).
Average cloud cover in April
Calai, Angola
- Average cloud cover in April: 20
The month with the most cloud cover is January (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 1).
Average visibility in April
Calai, Angola
- Average visibility in April: 10km
The months with the highest visibility are April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February and March (9km).
