May weather forecastSiriri, Brazil
May
Weather in May
The last month of the autumn, May, is also a moderately hot month in Siriri, Brazil, with an average temperature varying between 23.3°C (73.9°F) and 29.3°C (84.7°F).Temperature
The initiation of May sees an average high-temperature of a warm 29.3°C (84.7°F), showing minor variations from the previous month. An average temperature of 23.3°C (73.9°F) is recorded in Siriri during the nights in May.Heat index
The heat index in May is appraised at a sweltering 36°C (96.8°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. 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. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
In Siriri, the average relative humidity in May is 80%.Rainfall
In May, the rain falls for 20.4 days. Throughout May, 86mm (3.39") of precipitation is accumulated. In Siriri, during the entire year, the rain falls for 211.1 days and collects up to 584mm (22.99") of precipitation.Daylight
In May, the average length of the day is 11h and 38min.On the first day of May, sunrise is at 05:33 and sunset at 17:17. On the last day of the month, sunrise is at 05:39 and sunset at 17:12 -03.
Sunshine
May, July and October, with an average of 7.4h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are May through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 6 during May leads to these advisories:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Siriri, Brazil
- Average high temperature in May: 29.3°C
The warmest month (with the highest average high temperature) is March (31.6°C).
The months with the lowest average high temperature are July and August (26.7°C).
- Average low temperature in May: 23.3°C
The month with the highest average low temperature is March (24.7°C).
The coldest month (with the lowest average low temperature) is August (21.3°C).
Average pressure in May
Siriri, Brazil
- Average pressure in May: 1014.2mbar
The month with the highest atmospheric pressure is August (1017.4mbar).
The month with the lowest atmospheric pressure is March (1011.9mbar).
Average wind speed in May
Siriri, Brazil
- Average wind speed in May: 12.2km/h
The windiest month (with the highest average wind speed) is November (16.8km/h).
The calmest month (with the lowest average wind speed) is May (12.2km/h).
Average humidity in May
Siriri, Brazil
- Average humidity in May: 80%
The months with the highest relative humidity are June and July (81%).
The months with the lowest relative humidity are January, February, March and December (73%).
Average rainfall in May
Siriri, Brazil
- Average rainfall in May: 86mm
The wettest month (with the highest rainfall) is July (89mm).
The driest month (with the least rainfall) is November (16mm).
Average rainfall days in May
Siriri, Brazil
- Average rainfall days in May: 20.4 days
The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is November (11 days).
Average daylight in May /
Average sunshine in May
Siriri, Brazil
- Average daylight in May: 11h and 36min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 30min).
- Average sunshine in May: 7h and 24min
The months with the most sunshine are March and December (Average sunshine: 8h and 18min).
The months with the least sunshine are May, July and October (Average sunshine: 7h and 24min).
Average sunshine days in May
Siriri, Brazil
- Average sunshine days in May: 7.1 days
The month with the most sunshine days is December (14.3 days).
The month with the least sunshine days is July (4.2 days).
Average UV index in May
Siriri, Brazil
- Average UV index in May: 6
The months with the highest UV index are January, February, March, April, October, November and December (UV index 7).
The months with the lowest UV index are May, June, July, August and September (UV index 6).
Average cloud cover in May
Siriri, Brazil
- Average cloud cover in May: 45
The month with the most cloud cover is July (Cloud cover 47).
The month with the least cloud cover is December (Cloud cover 35).
Average visibility in May
Siriri, Brazil
- Average visibility in May: 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).





