December weather forecast
Gravatá, Brazil

December, the first month of the summer in Gravatá, is also a moderately hot month, with an average temperature varying between 21°C (69.8°F) and 29.9°C (85.8°F).

Temperature

Gravatá's entry into December measures an average high-temperature of a still warm 29.9°C (85.8°F), closely parallel to the preceding month. Gravatá cools down to an average low-temperature of 21°C (69.8°F) throughout the month of December.

Heat index

December's average heat index is estimated at a torrid 36°C (96.8°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital 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.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

December is the least humid month in Gravatá, with an average relative humidity of 76%.

Rainfall

In Gravatá, during December, the rain falls for 16 days and regularly aggregates up to 21mm (0.83") of precipitation. In Gravatá, during the entire year, the rain falls for 224.2 days and collects up to 472mm (18.58") of precipitation.

Daylight

The month with the longest days in Gravatá, Brazil, is December, with an average of 12h and 36min of daylight.
On the first day of the month, sunrise is at 04:54 and sunset at 17:28. On the last day of December, in Gravatá, sunrise is at 05:07 and sunset at 17:43 -03.

Sunshine

The average sunshine in December in Gravatá, Brazil, is 6.6h.

UV index

The months with the highest UV index in Gravatá are January through May, August through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 6 during December leads to these advisories:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.