Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May is the coldest month of the year, registering average temperatures as high as 29.7°C (85.5°F) and as low as 22.1°C (71.8°F).Heat index
May's average heat index is estimated at an extremely hot 40°C (104°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
The most humid month is May, with an average relative humidity of 91%.Rainfall
The month with the most rainfall is May, when the rain falls for 29.5 days and typically aggregates up to 242mm (9.53") of precipitation.Daylight
The average length of the day in May is 12h and 6min.On the first day of May, sunrise is at 06:14 and sunset at 18:20. On the last day of the month, sunrise is at 06:14 and sunset at 18:20 -04.
Sunshine
With an average of 5.1h of sunshine, May has the least sunshine of the year.UV index
January through June, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In May, a daily UV index of 6 turns into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How hot does it get in May?
What is the most humid month?
What is the average humidity in May?
What is the rainiest month?
How much does it rain in May?
How many hours of daylight does Santa Isabel do Rio Negro have in May?
When are sunrise and sunset in May?
What is the month with the least sunshine?
How long on average sun shines in May?
What is the month with the lowest UV index?
What is the UV index intensity in May?
Average temperature in May
Santa Isabel do Rio Negro, Brazil
- Average high temperature in May: 29.7°C
The warmest month (with the highest average high temperature) is September (33.5°C).
The month with the lowest average high temperature is May (29.7°C).
- Average low temperature in May: 22.1°C
The month with the highest average low temperature is October (23.3°C).
The coldest month (with the lowest average low temperature) is July (21.3°C).
Average pressure in May
Santa Isabel do Rio Negro, Brazil
- Average pressure in May: 1011.8mbar
The month with the highest atmospheric pressure is July (1013mbar).
The month with the lowest atmospheric pressure is November (1008.4mbar).
Average wind speed in May
Santa Isabel do Rio Negro, Brazil
- Average wind speed in May: 3.5km/h
The windiest month (with the highest average wind speed) is February (4.3km/h).
The calmest months (with the lowest average wind speed) are May and June (3.5km/h).
Average humidity in May
Santa Isabel do Rio Negro, Brazil
- Average humidity in May: 91%
The month with the highest relative humidity is May (91%).
The month with the lowest relative humidity is September (76%).
Average rainfall in May
Santa Isabel do Rio Negro, Brazil
- Average rainfall in May: 242mm
The wettest month (with the highest rainfall) is May (242mm).
The driest month (with the least rainfall) is September (75mm).
Average rainfall days in May
Santa Isabel do Rio Negro, Brazil
- Average rainfall days in May: 29.5 days
The month with the highest number of rainy days is May (29.5 days).
The month with the least rainy days is September (21.9 days).
Average daylight in May /
Average sunshine in May
Santa Isabel do Rio Negro, Brazil
- Average daylight in May: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 6min).
The month with the shortest days is June (Average daylight: 12h and 6min).
- Average sunshine in May: 5h and 1min
The month with the most sunshine is September (Average sunshine: 8h and 24min).
The month with the least sunshine is May (Average sunshine: 5h and 6min).
Average sunshine days in May
Santa Isabel do Rio Negro, Brazil
- Average sunshine days in May: 1.1 days
The month with the most sunshine days is August (7.3 days).
The months with the least sunshine days are May and June (1.1 days).
Average UV index in May
Santa Isabel do Rio Negro, Brazil
- Average UV index in May: 6
The months with the highest UV index are July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May and June (UV index 6).
Average cloud cover in May
Santa Isabel do Rio Negro, Brazil
- Average cloud cover in May: 72
The month with the most cloud cover is May (Cloud cover 72).
The month with the least cloud cover is September (Cloud cover 42).
Average visibility in May
Santa Isabel do Rio Negro, Brazil
- Average visibility in May: 5km
The months with the highest visibility are August, September and October (8km).
The month with the lowest visibility is May (5km).
Santa Isabel do Rio Negro, Brazil
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