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
April's climate shows a minor adjustment in average high-temperatures to a still moderately hot 28.6°C (83.5°F) from March's 28.8°C (83.8°F). April nights reveal a minor deviation from daytime highs, with a mean low-temperature of 27.2°C (81°F).Heat index
In April, the average heat index is appraised at a tropical 33°C (91.4°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.It is essential to grasp that the heat index's numbers are for shade and light wind settings. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
The average relative humidity in April in Porto Alegre is 77%.Rainfall
In April, the rain falls for 22 days. Throughout April, 126mm (4.96") of precipitation is accumulated. In Porto Alegre, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation.Daylight
The average length of the day in April is 12h and 7min.On the first day of April, sunrise is at 05:34 and sunset at 17:41. On the last day of the month, sunrise is at 05:27 and sunset at 17:34 GMT.
Sunshine
In April, the average sunshine in Porto Alegre is 8.1h.UV index
The months with the highest UV index are January through May, October through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 7 in April translates into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
Is it hot in Porto Alegre during April?
What is the average humidity in April in Porto Alegre?
How much does it rain in Porto Alegre in April?
How many hours of daylight does Porto Alegre have in April?
When is the sunrise / sunset in April in Porto Alegre?
How many hours of sunshine does Porto Alegre have in April?
When is the highest UV index in Porto Alegre?
How high is the UV index in April in Porto Alegre?
Average temperature in April
Porto Alegre, São Tomé and Príncipe
- Average high temperature in April: 28.6°C
The warmest month (with the highest average high temperature) is March (28.8°C).
The month with the lowest average high temperature is July (24.5°C).
- Average low temperature in April: 27.2°C
The month with the highest average low temperature is March (27.5°C).
The coldest month (with the lowest average low temperature) is July (23°C).
Average pressure in April
Porto Alegre, São Tomé and Príncipe
- Average pressure in April: 1010.1mbar
The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is February (1009.8mbar).
Average wind speed in April
Porto Alegre, São Tomé and Príncipe
- Average wind speed in April: 10.9km/h
The windiest month (with the highest average wind speed) is July (17.7km/h).
The calmest month (with the lowest average wind speed) is December (10.8km/h).
Average humidity in April
Porto Alegre, São Tomé and Príncipe
- Average humidity in April: 77%
The months with the highest relative humidity are August, September and October (83%).
The month with the lowest relative humidity is March (76%).
Average rainfall in April
Porto Alegre, São Tomé and Príncipe
- Average rainfall in April: 126mm
The wettest month (with the highest rainfall) is November (224mm).
The driest month (with the least rainfall) is July (9mm).
Average rainfall days in April
Porto Alegre, São Tomé and Príncipe
- Average rainfall days in April: 22 days
The month with the highest number of rainy days is December (28.6 days).
The month with the least rainy days is June (7.3 days).
Average daylight in April /
Average sunshine in April
Porto Alegre, São Tomé and Príncipe
- Average daylight in April: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 6min).
The months with the shortest days are March and September (Average daylight: 12h and 6min).
- Average sunshine in April: 8h and 1min
The month with the most sunshine is February (Average sunshine: 8h and 36min).
The month with the least sunshine is August (Average sunshine: 5h and 0min).
Average sunshine days in April
Porto Alegre, São Tomé and Príncipe
- Average sunshine days in April: 6.2 days
The month with the most sunshine days is June (16.4 days).
The month with the least sunshine days is December (1.5 days).
Average UV index in April
Porto Alegre, São Tomé and Príncipe
- Average UV index in April: 7
The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in April
Porto Alegre, São Tomé and Príncipe
- Average cloud cover in April: 39
The month with the most cloud cover is August (Cloud cover 65).
The month with the least cloud cover is February (Cloud cover 37).
Average visibility in April
Porto Alegre, São Tomé and Príncipe
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).
Porto Alegre, São Tomé and Príncipe
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