Contents
- Weather in March
- Frequently asked questions
- Average temperature in March
- Average pressure in March
- Average wind speed in March
- Average humidity in March
- Average rainfall in March
- Average rainfall days in March
- Average daylight in March
- Average sunshine in March
- Average sunshine days in March
- Average UV index in March
- Average cloud cover in March
- Average visibility in March
Weather in March
Temperature
Temperature records mark March as the warmest month, with highs averaging 28.8°C (83.8°F) and lows at 27.5°C (81.5°F).Heat index
The average heat index in March is appraised at a hot 33°C (91.4°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. 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 are quite important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
With an average relative humidity of 76%, March is the least humid month.Rainfall
In Porto Alegre, in March, during 24.4 rainfall days, 119mm (4.69") of precipitation is typically accumulated. Throughout the year, in Porto Alegre, there are 241.7 rainfall days, and 1287mm (50.67") of precipitation is accumulated.Daylight
March and September, with an average of 12h and 6min of daylight, are months with the shortest days.On the first day of March in Porto Alegre, sunrise is at 05:42 and sunset at 17:49. On the last day of the month, sunrise is at 05:34 and sunset at 17:41 GMT.
Sunshine
In Porto Alegre, the average sunshine in March is 8.4h.UV index
January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 7 in March translates into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What is the hottest time of year in Porto Alegre?
How hot is March in Porto Alegre?
What is the least humid month in Porto Alegre?
What is the average humidity in March in Porto Alegre?
How much does it rain in Porto Alegre in March?
What is the month with the shortest days in Porto Alegre?
How many hours of daylight does Porto Alegre have in March?
When is the sunrise / sunset in March in Porto Alegre?
How many hours of sunshine does Porto Alegre have in March?
When is the highest UV index in Porto Alegre?
How high is the UV index in March in Porto Alegre?
Average temperature in March
Porto Alegre, São Tomé and Príncipe
- Average high temperature in March: 28.8°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 March: 27.5°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 March
Porto Alegre, São Tomé and Príncipe
- Average pressure in March: 1009.9mbar
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 March
Porto Alegre, São Tomé and Príncipe
- Average wind speed in March: 11.7km/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 March
Porto Alegre, São Tomé and Príncipe
- Average humidity in March: 76%
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 March
Porto Alegre, São Tomé and Príncipe
- Average rainfall in March: 119mm
The wettest month (with the highest rainfall) is November (224mm).
The driest month (with the least rainfall) is July (9mm).
Average rainfall days in March
Porto Alegre, São Tomé and Príncipe
- Average rainfall days in March: 24.4 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 March /
Average sunshine in March
Porto Alegre, São Tomé and Príncipe
- Average daylight in March: 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 March: 8h and 2min
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 March
Porto Alegre, São Tomé and Príncipe
- Average sunshine days in March: 5.3 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 March
Porto Alegre, São Tomé and Príncipe
- Average UV index in March: 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 March
Porto Alegre, São Tomé and Príncipe
- Average cloud cover in March: 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 March
Porto Alegre, São Tomé and Príncipe
- Average visibility in March: 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
Weather forecast for your location
2. Allow the app to use your location
