April weather forecastSantos, Brazil
April
Weather in April
April marks the beginning of the pleasant autumn season in Santos and displays a noticeable shift in weather conditions. Key features of this month include the lowest rainfall recorded within the first quarter, reaching only 49mm (1.93"). Cooler temperatures, decreased visibility, and a continuous reduction in daylight hours define this period. The amenability of the April weather lends itself wonderfully to outdoor activities, without the severe summer heat.Temperature
In April, Santos experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 26.8°C (80.2°F) in March to a still moderately hot 25.3°C (77.5°F). The nights of April in Santos are characterized by an average low-temperature of 21.1°C (70°F), subtly descending from daytime highs.Humidity
The average relative humidity in April in Santos is 81%.Rainfall
In Santos, Brazil, during April, the rain falls for 14.6 days and regularly aggregates up to 49mm (1.93") of precipitation. Throughout the year, in Santos, there are 191.3 rainfall days, and 819mm (32.24") of precipitation is accumulated.Sea temperature
In Santos, in April, the average water temperature is 26.4°C (79.5°F).Note: For swimming, diving, or other water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) provide the most enjoyable experience for extended periods without discomfort.
Daylight
In April, the average length of the day is 11h and 32min.On the first day of April, sunrise is at 06:13 and sunset at 18:04. On the last day of the month, sunrise is at 06:26 and sunset at 17:38 -03.
Sunshine
In Santos, the average sunshine in April is 7.9h.UV index
In April, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 6 in April, converts into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Santos, Brazil
- Average high temperature in April: 25.3°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 April: 21.1°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 April
Santos, Brazil
- Average pressure in April: 1015.8mbar
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 April
Santos, Brazil
- Average wind speed in April: 10.1km/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 April
Santos, Brazil
- Average humidity in April: 81%
The month with the highest relative humidity is November (84%).
The month with the lowest relative humidity is August (78%).
Average rainfall in April
Santos, Brazil
- Average rainfall in April: 49mm
The wettest month (with the highest rainfall) is February (125mm).
The driest month (with the least rainfall) is August (35mm).
Average rainfall days in April
Santos, Brazil
- Average rainfall days in April: 14.6 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 April
Santos, Brazil
- Average sea temperature in April: 26.4°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 April /
Average sunshine in April
Santos, Brazil
- Average daylight in April: 11h and 30min
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 April: 7h and 54min
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 April
Santos, Brazil
- Average sunshine days in April: 12 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 April
Santos, Brazil
- Average UV index in April: 6
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 April
Santos, Brazil
- Average cloud cover in April: 37
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 April
Santos, Brazil
- Average visibility in April: 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).





