January weather forecast
Óbidos, Brazil

January, like December, is another hot summer month in Óbidos, Brazil, with temperature in the range of an average low of 23.2°C (73.8°F) and an average high of 31.6°C (88.9°F).

Temperature

As December transitions into January, the average high-temperature rests at a still hot 31.6°C (88.9°F), maintaining a close resemblance to the previous month. Óbidos records an average nighttime low of 23.2°C (73.8°F) in January.

Heat index

The heat index for January is evaluated at a blisteringly hot 42°C (107.6°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Heat index readings emphasize conditions of light breezes and shaded spots. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In January, the average relative humidity is 78%.

Rainfall

In Óbidos, in January, during 22.8 rainfall days, 101mm (3.98") of precipitation is typically accumulated. Throughout the year, there are 212.5 rainfall days, and 1026mm (40.39") of precipitation is accumulated.

Daylight

The average length of the day in January is 12h and 13min.
On the first day of January, sunrise is at 06:38 and sunset at 18:52. On the last day of the month, sunrise is at 06:49 and sunset at 19:01 -03.

Sunshine

In January, the average sunshine in Óbidos is 7.4h.

UV index

January through April, with an average maximum UV index of 6, are months with the lowest UV index in Óbidos, Brazil. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In January, a daily maximum UV index of 6 leads to the following instructions:
Guard oneself from overexposure. Defence against sun injury is vital. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Boost your sun resistance with garments that are densely woven yet spacious.