December weather forecastIaras, Brazil
December
Weather in December
December, the first month of the summer in Iaras, is still a warm month, with an average temperature varying between 18.5°C (65.3°F) and 27.3°C (81.1°F).Temperature
December is the month when Iaras sees the highest average temperatures, with a high of 27.3°C (81.1°F) and a low of 18.5°C (65.3°F).Heat index
December's average heat index is estimated at a hot 31°C (87.8°F). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
The average relative humidity in December in Iaras is 84%.Rainfall
In December, the rain falls for 26.5 days. Throughout December, 176mm (6.93") of precipitation is accumulated. Throughout the year, there are 208.7 rainfall days, and 1313mm (51.69") of precipitation is accumulated.Daylight
The month with the longest days is December, with an average of 13h and 30min of daylight.On the first day of December, sunrise is at 05:22 and sunset at 18:49. On the last day of the month, sunrise is at 05:34 and sunset at 19:05 -03.
Sunshine
In Iaras, Brazil, the average sunshine in December is 7.1h.UV index
The months with the lowest UV index in Iaras are January through September, November and December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 5 in December transforms into this advice:
Undertake precautions - Guarding against sun damage is counselled. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Iaras, Brazil
- Average high temperature in December: 27.3°C
The warmest month (with the highest average high temperature) is December (27.3°C).
The month with the lowest average high temperature is June (21°C).
- Average low temperature in December: 18.5°C
The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (12.5°C).
Average pressure in December
Iaras, Brazil
- Average pressure in December: 1011.4mbar
The month with the highest atmospheric pressure is July (1019.5mbar).
The month with the lowest atmospheric pressure is December (1011.4mbar).
Average wind speed in December
Iaras, Brazil
- Average wind speed in December: 9.6km/h
The windiest month (with the highest average wind speed) is October (11.3km/h).
The calmest month (with the lowest average wind speed) is February (8.4km/h).
Average humidity in December
Iaras, Brazil
- Average humidity in December: 84%
The months with the highest relative humidity are February, March and May (88%).
The month with the lowest relative humidity is September (72%).
Average rainfall in December
Iaras, Brazil
- Average rainfall in December: 176mm
The wettest month (with the highest rainfall) is January (250mm).
The driest month (with the least rainfall) is August (32mm).
Average rainfall days in December
Iaras, Brazil
- Average rainfall days in December: 26.5 days
The month with the highest number of rainy days is January (27.9 days).
The month with the least rainy days is August (6.4 days).
Average daylight in December /
Average sunshine in December
Iaras, Brazil
- Average daylight in December: 13h and 30min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in December: 7h and 6min
The month with the most sunshine is August (Average sunshine: 8h and 48min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days in December
Iaras, Brazil
- Average sunshine days in December: 3.4 days
The month with the most sunshine days is August (23.9 days).
The month with the least sunshine days is February (1.6 days).
Average UV index in December
Iaras, Brazil
- Average UV index in December: 5
The month with the highest UV index is October (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 5).
Average cloud cover in December
Iaras, Brazil
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Iaras, Brazil
- Average visibility in December: 8km
The months with the highest visibility are August, September and October (9km).
The months with the lowest visibility are January, February, March, April, May and June (7km).
