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 sea temperature 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
May
Weather in May
Temperature
The shift into May uncovers an average high-temperature of a still moderately hot 23°C (73.4°F), subtly different from the previous month. May witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 19.5°C (67.1°F).Humidity
The average relative humidity in May in São Sebastião, Brazil, is 81%.Rainfall
In São Sebastião, Brazil, during May, the rain falls for 16 days and regularly aggregates up to 45mm (1.77") of precipitation. Throughout the year, there are 210.2 rainfall days, and 818mm (32.2") of precipitation is accumulated.Sea temperature
In São Sebastião, Brazil, in May, the average water temperature is 24.3°C (75.7°F).Note: Individual preferences to cold, influenced by conditions such as sunshine, wind, and surrounding temperature, play a part in the comfort of swimming in 24.3°C (75.7°F) waters. (As an aside, Olympic swimming standards dictate water temperatures from 25°C (77°F) to 28°C (82.4°F).)
Daylight
In São Sebastião, Brazil, the average length of the day in May is 10h and 58min.On the first day of the month, sunrise is at 06:22 and sunset at 17:34. On the last day of May, sunrise is at 06:36 and sunset at 17:22 -03.
Sunshine
February and May, with an average of 8.1h of sunshine, are months with the most sunshine.UV index
The months with the lowest UV index are April, May, July through September, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Stay sun-safe with clothing that is both closely woven and worn loosely. Alert! Sand and water increase UV exposure due to their reflective properties.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for São Sebastião in May?
What is the average humidity in May in São Sebastião?
How much does it rain in São Sebastião in May?
How warm is the water in May in São Sebastião?
What is the average length of the day in May in São Sebastião?
When are sunrise and sunset in May in São Sebastião?
What is the month with the most sunshine in São Sebastião?
How long on average sun shines in May in São Sebastião?
When is the lowest UV index in São Sebastião?
What is the UV index reading in May in São Sebastião?
Average temperature in May
São Sebastião, Brazil
- Average high temperature in May: 23°C
The warmest month (with the highest average high temperature) is February (27°C).
The months with the lowest average high temperature are July and August (21.7°C).
- Average low temperature in May: 19.5°C
The month with the highest average low temperature is February (23.3°C).
The coldest months (with the lowest average low temperature) are July and August (17.8°C).
Average pressure in May
São Sebastião, Brazil
- Average pressure in May: 1017.4mbar
The month with the highest atmospheric pressure is July (1020.1mbar).
The month with the lowest atmospheric pressure is December (1011.8mbar).
Average wind speed in May
São Sebastião, Brazil
- Average wind speed in May: 12.4km/h
The windiest months (with the highest average wind speed) are August and September (13.8km/h).
The calmest months (with the lowest average wind speed) are January and February (11.2km/h).
Average humidity in May
São Sebastião, Brazil
- Average humidity in May: 81%
The month with the highest relative humidity is November (86%).
The month with the lowest relative humidity is August (80%).
Average rainfall in May
São Sebastião, Brazil
- Average rainfall in May: 45mm
The wettest month (with the highest rainfall) is February (133mm).
The driest month (with the least rainfall) is August (37mm).
Average rainfall days in May
São Sebastião, Brazil
- Average rainfall days in May: 16 days
The month with the highest number of rainy days is January (24.1 days).
The month with the least rainy days is August (10.8 days).
Average sea temperature in May
São Sebastião, Brazil
- Average sea temperature in May: 24.3°C
The best month for swimming (with the highest average sea temperature) is February (26.5°C).
The coldest month (with the lowest average sea temperature) is September (21.2°C).
Average daylight in May /
Average sunshine in May
São Sebastião, Brazil
- Average daylight in May: 11h and 0min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in May: 8h and 1min
The months with the most sunshine are February and May (Average sunshine: 8h and 6min).
The months with the least sunshine are October and November (Average sunshine: 7h and 0min).
Average sunshine days in May
São Sebastião, Brazil
- Average sunshine days in May: 12.4 days
The month with the most sunshine days is August (17.4 days).
The month with the least sunshine days is January (4.5 days).
Average UV index in May
São Sebastião, Brazil
- Average UV index in May: 5
The month with the highest UV index is January (UV index 7).
The months with the lowest UV index are April, May, July, August and September (UV index 5).
Average cloud cover in May
São Sebastião, Brazil
- Average cloud cover in May: 35
The month with the most cloud cover is November (Cloud cover 49).
The months with the least cloud cover are June, July and August (Cloud cover 34).
Average visibility in May
São Sebastião, Brazil
- Average visibility in May: 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).
