February weather forecast
Teresina, Brazil

The weather in Teresina in February slightly escalates the warm and damp climate observed in January. Rainfall and temperatures record slightly higher, while the sunshine hours decrease a bit compared to the preceding month. February stands out due to its increased precipitation volumes that reach 254mm (10"), making it a relatively wet month. Humidity remains high, affecting the feel of the temperature, and wind speeds stay quite calm. Teresina thus experiences a wet and warm February, accompanied by a consistent sea breeze.

Temperature

Teresina's average high-temperature marks a still tropical 31.5°C (88.7°F) with the advent of February, closely mirroring that of the preceding month. Throughout February, Teresina's nights cool down to an average of 22.8°C (73°F).

Heat index

February's mean heat index is calculated to be a scorching 43°C (109.4°F). Mind: Heat cramps along with heat exhaustion are anticipated. Heatstroke can develop with continued physical activity.
Note that heat index values are valued for light wind and location in the shade. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The average relative humidity in February is 81%.

Rainfall

In Teresina, in February, it is raining for 26.4 days, with typically 254mm (10") of accumulated precipitation. In Teresina, during the entire year, the rain falls for 207.4 days and collects up to 1348mm (53.07") of precipitation.

Daylight

In February, the average length of the day in Teresina is 12h and 16min.
On the first day of the month, sunrise is at 05:54 and sunset at 18:14. On the last day of February, sunrise is at 05:57 and sunset at 18:09 -03.

Sunshine

In Teresina, the average sunshine in February is 8.5h.

UV index

With an average maximum UV index of 6, February is the month with the lowest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 6 in February translates into this advice:
Deflect overexposure. Sun protection is a necessity. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.