May weather forecastSantos, Brazil
May
Weather in May
May ushers in the late autumn period in Santos, accompanied by more significant temperature drops. The most significant shift lies in the sea temperatures, dropping from 26.4°C (79.5°F) in April to 24.2°C (75.6°F) in May. Simultaneously, the increase in sunny days and pressure exemplifies the typical late autumn features. The weather lays a perfect setting for visitors who prefer less crowded tourist locations and milder temperatures.Temperature
The arrival of May brings an average high-temperature of a still moderately hot 23.6°C (74.5°F), subtly diverging from April's 25.3°C (77.5°F). During May, Santos's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 19.3°C (66.7°F).Humidity
In Santos, the average relative humidity in May is 80%.Rainfall
In Santos, in May, during 13.6 rainfall days, 45mm (1.77") of precipitation is typically accumulated. Throughout the year, there are 191.3 rainfall days, and 819mm (32.24") of precipitation is accumulated.Sea temperature
In Santos, Brazil, the average seawater temperature in May is 24.2°C (75.6°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 24.2°C (75.6°F) waters. (As an aside, Olympic swimming standards dictate water temperatures from 25°C (77°F) to 28°C (82.4°F).)
Daylight
In May, the average length of the day is 10h and 58min.On the first day of May, sunrise is at 06:26 and sunset at 17:38. On the last day of the month, sunrise is at 06:40 and sunset at 17:25 -03.
Sunshine
With an average of 8.1h of sunshine, May has the most sunshine of the year.UV index
The months with the lowest UV index in Santos are May, July through September, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Undertake precautions - Guarding against sun damage is counselled. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Alert! UV radiation becomes sharper due to reflections from sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Santos, Brazil
- Average high temperature in May: 23.6°C
The warmest month (with the highest average high temperature) is February (27.8°C).
The month with the lowest average high temperature is July (22°C).
- Average low temperature in May: 19.3°C
The month with the highest average low temperature is February (23.7°C).
The coldest month (with the lowest average low temperature) is August (17.5°C).
Average pressure in May
Santos, Brazil
- Average pressure in May: 1017.5mbar
The month with the highest atmospheric pressure is July (1020.1mbar).
The month with the lowest atmospheric pressure is December (1011.7mbar).
Average wind speed in May
Santos, Brazil
- Average wind speed in May: 10.4km/h
The windiest month (with the highest average wind speed) is November (11.6km/h).
The calmest month (with the lowest average wind speed) is February (9.8km/h).
Average humidity in May
Santos, Brazil
- Average humidity in May: 80%
The month with the highest relative humidity is November (84%).
The month with the lowest relative humidity is August (78%).
Average rainfall in May
Santos, Brazil
- Average rainfall in May: 45mm
The wettest month (with the highest rainfall) is February (125mm).
The driest month (with the least rainfall) is August (35mm).
Average rainfall days in May
Santos, Brazil
- Average rainfall days in May: 13.6 days
The month with the highest number of rainy days is January (23.3 days).
The month with the least rainy days is August (9.1 days).
Average sea temperature in May
Santos, Brazil
- Average sea temperature in May: 24.2°C
The best month for swimming (with the highest average sea temperature) is February (27°C).
The coldest month (with the lowest average sea temperature) is September (20.7°C).
Average daylight in May /
Average sunshine in May
Santos, 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 6min
The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is November (Average sunshine: 7h and 0min).
Average sunshine days in May
Santos, Brazil
- Average sunshine days in May: 14.9 days
The month with the most sunshine days is August (19.5 days).
The month with the least sunshine days is February (3.5 days).
Average UV index in May
Santos, 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 May, July, August and September (UV index 5).
Average cloud cover in May
Santos, Brazil
- Average cloud cover in May: 34
The month with the most cloud cover is November (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Santos, 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).





