January weather forecastSantos, Brazil

Weather in January

In Santos, Brazil, January features a blend of warm temperatures, high humidity, and fairly consistent rainfall. This opens the year on the following note: average high temperatures reach 27.5°C (81.5°F), while low temperatures descend to a balmy 23.5°C (74.3°F). In comparison to the following months, January stands as the month with the highest relative humidity at 81%. Beach-going visitors should prepare to bask in sea temperatures of around 26.7°C (80.1°F), perfect for ocean activities.

Temperature

January's presence in Santos marks an average high-temperature of a still warm 27.5°C (81.5°F), subtly varied from December's 26.6°C (79.9°F). January registers an average low temperature of 23.5°C (74.3°F) in Santos, subtly lower than the daytime maximum.

Heat index

The heat index value for January is calculated to be a hot 31°C (87.8°F). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

In January, the average relative humidity in Santos, Brazil, is 81%.

Rainfall

In Santos, in January, during 23.3 rainfall days, 123mm (4.84") of precipitation is typically accumulated. In Santos, during the entire year, the rain falls for 191.3 days and collects up to 819mm (32.24") of precipitation.

Sea temperature

In Santos, in January, the average water temperature is 26.7°C (80.1°F).
Note: Swimming, diving, and other water endeavors at temperatures between 25°C (77°F) and 29°C (84.2°F) are considered enjoyable and satisfying for extended periods without discomfort.

Daylight

The average length of the day in January in Santos, Brazil, is 13h and 25min.
On the first day of the month, sunrise is at 05:21 and sunset at 18:56. On the last day of January, in Santos, Brazil, sunrise is at 05:42 and sunset at 18:54 -03.

Sunshine

In January, the average sunshine in Santos is 7.7h.

UV index

The month with the highest UV index in Santos, Brazil, is January, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 7 during January leads to these advisories:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Caution! Sand and water reflections can notably increase the UV radiation intensity.