January weather forecastItacajá, Brazil

January

Weather in January

January, like December, is another tropical summer month in Itacajá, Brazil, with an average temperature fluctuating between 30.2°C (86.4°F) and 22°C (71.6°F).

Temperature

The commencement of January records an average high-temperature of a still hot 30.2°C (86.4°F), barely varying from December's 31°C (87.8°F). January nights cool down to an average low-temperature of 22°C (71.6°F).

Heat index

The average heat index in January is computed to be a sweltering 39°C (102.2°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in January is 83%.

Rainfall

In Itacajá, in January, it is raining for 28.8 days, with typically 165mm (6.5") of accumulated precipitation. Throughout the year, in Itacajá, Brazil, there are 220.5 rainfall days, and 1134mm (44.65") of precipitation is accumulated.

Daylight

The average length of the day in January is 12h and 33min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:32. On the last day of January, sunrise is at 06:10 and sunset at 18:38 -03.

Sunshine

In Itacajá, the average sunshine in January is 7h.

UV index

The months with the lowest UV index in Itacajá are January, April and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 6 in January, converts into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

During January, Itacajá experiences an average high-temperature of 30.2°C (86.4°F) and a low-temperature of 22°C (71.6°F). In January, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 39°C (102.2°F).

In January, the average relative humidity in Itacajá is 83%.

In Itacajá, during January, the rain falls for 28.8 days and regularly aggregates up to 165mm (6.5") of precipitation.

In Itacajá, the average day length in January is 12h and 33min.

In January, on the first day of the month, sunrise is at 05:56 and sunset at 18:32. On the last day of the month, in Itacajá, sunrise is at 06:10 and sunset at 18:38 -03.

In January, the average sunshine duration is 7h.

The months with the lowest UV index are January, April and December, with an average maximum UV index of 6.

The average daily maximum UV index in January in Itacajá, Brazil, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

31°C

30.2°C

29.9°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.9km/h

5.5km/h

5.4km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

2.7

1.4

1.6

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Itacajá, Brazil

Average high temperature in January: 30.2°C

The warmest month (with the highest average high temperature) is September (36.2°C).
The month with the lowest average high temperature is February (29.9°C).

Average low temperature in January: 22°C

The month with the highest average low temperature is October (23.8°C).
The coldest month (with the lowest average low temperature) is July (20.8°C).

Average pressure in January
Itacajá, Brazil

Average pressure in January: 1010.8mbar

The months with the highest atmospheric pressure are June and July (1013.2mbar).
The month with the lowest atmospheric pressure is November (1009mbar).

Average wind speed in January
Itacajá, Brazil

Average wind speed in January: 5km/h

The windiest month (with the highest average wind speed) is August (7.7km/h).
The calmest months (with the lowest average wind speed) are February and March (4.8km/h).

Average humidity in January
Itacajá, Brazil

Average humidity in January: 83%

The months with the highest relative humidity are February and March (84%).
The month with the lowest relative humidity is August (42%).

Average rainfall in January
Itacajá, Brazil

Average rainfall in January: 165mm

The wettest month (with the highest rainfall) is March (189mm).
The driest month (with the least rainfall) is August (2mm).

Average rainfall days in January
Itacajá, Brazil

Average rainfall days in January: 28.8 days

The month with the highest number of rainy days is March (28.9 days).
The month with the least rainy days is August (1.8 days).

Average daylight in January /
Average sunshine in January
Itacajá, Brazil

Average daylight in January: 12h and 30min

The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).

Average sunshine in January: 7h and 0min

The month with the most sunshine is October (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).

Average sunshine days in January
Itacajá, Brazil

Average sunshine days in January: 1.4 days

The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (1.3 days).

Average UV index in January
Itacajá, Brazil

Average UV index in January: 6

The months with the highest UV index are February, March, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, April and December (UV index 6).

Average cloud cover in January
Itacajá, Brazil

Average cloud cover in January: 53

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 13).

Average visibility in January
Itacajá, Brazil

Average visibility in January: 8km

The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March and April (8km).