January weather forecastAçu, Brazil

January

Weather in January

January, the same as December, in Açu, Brazil, is another tropical summer month, with an average temperature fluctuating between 34.4°C (93.9°F) and 24.6°C (76.3°F).

Temperature

With the arrival of January, Açu's average high-temperature registers at a tropical 34.4°C (93.9°F), indicating a subtle variation from the previous month. Throughout January, Açu anticipates an average low-temperature of 24.6°C (76.3°F).

Heat index

The average heat index in January is appraised at a blistering 43°C (109.4°F). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.
The heat index's values are generally associated with conditions in shade and light breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In Açu, Brazil, the average relative humidity in January is 60%.

Rainfall

In January, the rain falls for 10.8 days. Throughout January, 28mm (1.1") of precipitation is accumulated. Throughout the year, in Açu, there are 112.4 rainfall days, and 381mm (15") of precipitation is accumulated.

Daylight

In January, the average length of the day in Açu, Brazil, is 12h and 24min.
On the first day of January, sunrise is at 05:17 and sunset at 17:44. On the last day of the month, sunrise is at 05:30 and sunset at 17:51 -03.

Sunshine

In Açu, the average sunshine in January is 8.7h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 7 during January translates into these guidelines:
Guard against overexposure. Protection from sun-induced harm is essential. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

The high-temperature in Açu, Brazil, during January is 34.4°C (93.9°F) and the low-temperature is 24.6°C (76.3°F). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in January is appraised at 43°C (109.4°F).

In January, the average relative humidity in Açu is 60%.

In Açu, during January, the rain falls for 10.8 days and regularly aggregates up to 28mm (1.1") of precipitation.

In January, the average day length is 12h and 24min.

On the first day of January in Açu, Brazil, sunrise is at 05:17 and sunset at 17:44. On the last day of the month, sunrise is at 05:30 and sunset at 17:51 -03.

The average sunshine duration in January is 8.7h.

The months with the highest UV index in Açu are January through December, with an average maximum UV index of 7.

The months with the lowest UV index in Açu, Brazil, are January through December, with an average maximum UV index of 7.

In January, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Açu, Brazil

  • Average high temperature in January: 34.4°C

The warmest month (with the highest average high temperature) is October (35.7°C).
The month with the lowest average high temperature is July (32°C).

  • Average low temperature in January: 24.6°C

The month with the highest average low temperature is January (24.6°C).
The coldest months (with the lowest average low temperature) are July and August (21.7°C).

Average pressure in January
Açu, Brazil

  • Average pressure in January: 1011.2mbar

The month with the highest atmospheric pressure is July (1014.6mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).

Average wind speed in January
Açu, Brazil

  • Average wind speed in January: 16.6km/h

The windiest months (with the highest average wind speed) are September and October (20.5km/h).
The calmest month (with the lowest average wind speed) is April (12.3km/h).

Average humidity in January
Açu, Brazil

  • Average humidity in January: 60%

The month with the highest relative humidity is April (73%).
The months with the lowest relative humidity are September and October (55%).

Average rainfall in January
Açu, Brazil

  • Average rainfall in January: 28mm

The wettest month (with the highest rainfall) is March (92mm).
The driest months (with the least rainfall) are October and November (1mm).

Average rainfall days in January
Açu, Brazil

  • Average rainfall days in January: 10.8 days

The month with the highest number of rainy days is April (17.2 days).
The month with the least rainy days is November (1.4 days).

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

  • Average daylight in January: 12h and 24min

The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 48min).

  • Average sunshine in January: 8h and 42min

The month with the most sunshine is September (Average sunshine: 9h and 36min).
The month with the least sunshine is March (Average sunshine: 8h and 18min).

Average sunshine days in January
Açu, Brazil

  • Average sunshine days in January: 19.2 days

The month with the most sunshine days is October (28.5 days).
The month with the least sunshine days is April (11.8 days).

Average UV index in January
Açu, Brazil

  • Average UV index in January: 7

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

Average cloud cover in January
Açu, Brazil

  • Average cloud cover in January: 32

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 16).

Average visibility in January
Açu, Brazil

  • Average visibility in January: 10km

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