January weather forecast
Cát Lái, Vietnam

January, the same as December, in Cát Lái, Vietnam, is another hot winter month, with an average temperature varying between 31.9°C (89.4°F) and 22.9°C (73.2°F).

Temperature

January brings an average high-temperature of a still hot 31.9°C (89.4°F), showing a slight difference from December's 31.2°C (88.2°F). Throughout the month of January, Cát Lái expects an average low of 22.9°C (73.2°F).

Heat index

January's heat index is evaluated at a very hot 39°C (102.2°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The average relative humidity in January is 67%.

Rainfall

In January, the rain falls for 8.6 days. Throughout January, 18mm (0.71") of precipitation is accumulated. Throughout the year, in Cát Lái, there are 241.8 rainfall days, and 1283mm (50.51") of precipitation is accumulated.

Daylight

In Cát Lái, the average length of the day in January is 11h and 34min.
On the first day of the month, sunrise is at 06:10 and sunset at 17:41. On the last day of January, in Cát Lái, sunrise is at 06:16 and sunset at 17:56 +07.

Sunshine

January has the least sunshine of the year in Cát Lái, with an average of 6.9h of sunshine.

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 in Cát Lái. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 7 in January interprets into the following advice:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.