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
April's average high-temperature is a still hot 33.8°C (92.8°F), maintaining a close comparison with March's 31.2°C (88.2°F). In April, Sayfaf records an average nighttime temperature of 27.9°C (82.2°F).Heat index
In April, the heat index is computed to be an extremely hot 42°C (107.6°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
The average relative humidity in April is 60%.Rainfall
The months with the least rainfall in Sayfaf are April and June Rain falls for 3.2 days and accumulates 2mm (0.08") of rain.Daylight
The average length of the day in April is 12h and 29min.On the first day of April in Sayfaf, sunrise is at 06:04 and sunset at 18:22. On the last day of the month, sunrise is at 05:46 and sunset at 18:27 +03.
Sunshine
In April, the average sunshine is 11.4h.UV index
April through October, with an average maximum UV index of 8, are months with the highest UV index in Sayfaf. A UV Index reading of 8 to 10 represents a very high health risk from unsafe exposure to UV radiation for average individuals.Note: In April, the maximum UV index of 8 suggests these recommendations:
Ensure you're always protected. Unprotected skin can get damaged in moments. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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?
What is the driest month?
How many days does it rain in April?
How many hours of daylight does Sayfaf have in April?
When is the sunrise / sunset in April?
How long on average sun shines in April?
What is the month with the highest UV index?
What is the UV index intensity in April?
Average temperature in April
Sayfaf, Yemen
- Average high temperature in April: 33.8°C
The warmest month (with the highest average high temperature) is July (36.9°C).
The month with the lowest average high temperature is January (28.8°C).
- Average low temperature in April: 27.9°C
The month with the highest average low temperature is August (31.5°C).
The coldest month (with the lowest average low temperature) is January (24.3°C).
Average pressure in April
Sayfaf, Yemen
- Average pressure in April: 1009.7mbar
The month with the highest atmospheric pressure is January (1014.3mbar).
The month with the lowest atmospheric pressure is July (1005.1mbar).
Average wind speed in April
Sayfaf, Yemen
- Average wind speed in April: 17.6km/h
The windiest month (with the highest average wind speed) is February (19.5km/h).
The calmest month (with the lowest average wind speed) is September (13.5km/h).
Average humidity in April
Sayfaf, Yemen
- Average humidity in April: 60%
The months with the highest relative humidity are January and February (68%).
The month with the lowest relative humidity is July (55%).
Average rainfall in April
Sayfaf, Yemen
- Average rainfall in April: 2mm
The wettest month (with the highest rainfall) is August (16mm).
The driest months (with the least rainfall) are April and June (2mm).
Average rainfall days in April
Sayfaf, Yemen
- Average rainfall days in April: 3.2 days
The month with the highest number of rainy days is January (5.8 days).
The month with the least rainy days is June (1 days).
Average daylight in April /
Average sunshine in April
Sayfaf, Yemen
- Average daylight in April: 12h and 3min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in April: 11h and 2min
The month with the most sunshine is May (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).
Average sunshine days in April
Sayfaf, Yemen
- Average sunshine days in April: 26.5 days
The month with the most sunshine days is June (28.6 days).
The months with the least sunshine days are January and November (23.1 days).
Average UV index in April
Sayfaf, Yemen
- Average UV index in April: 8
The months with the highest UV index are April, May, June, July, August, September and October (UV index 8).
The months with the lowest UV index are January, February, March, November and December (UV index 7).
Average cloud cover in April
Sayfaf, Yemen
- Average cloud cover in April: 10
The months with the most cloud cover are July and August (Cloud cover 26).
The month with the least cloud cover is October (Cloud cover 6).
Average visibility in April
Sayfaf, Yemen
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
