January weather forecast
Willemstad, Curaçao

Willemstad's new year begins with mild temperatures, tolerable humidity levels, and occasionally moderate showers. A coastal city in Curaçao, Willemstad experiences high temperatures ranging from 29.7°C (85.5°F) to 31.9°C (89.4°F) in the afternoons and lows of 24.3°C (75.7°F) in the early mornings of January. This city witnesses the beginning of beach season with an average sea temperature of 27°C (80.6°F), making it a tempting location for sea lover's and tourists. January also offers a reasonable balance between daylight hours and sunshine hours propitious for outdoor activities. Despite occasional showers, January weather in Willemstad is consistent and predictable, making it ideal for tourism.

Temperature

Willemstad's coldest month, January, generally records average temperatures ranging from a high of 29.7°C (85.5°F) to a low of 24.3°C (75.7°F).

Heat index

Throughout January, the heat index is evaluated at a fiery hot 36°C (96.8°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The average relative humidity in January is 77.4%.

Rainfall

In Willemstad, in January, during 8.6 rainfall days, 45mm (1.77") of precipitation is typically accumulated. In Willemstad, Curaçao, during the entire year, the rain falls for 69.4 days and collects up to 553mm (21.77") of precipitation.

Sea temperature

In January, the average sea temperature in Willemstad is 27°C (80.6°F).
Note: Swimming, diving, and other water activities in the temperature range of 25°C (77°F) to 29°C (84.2°F) are perceived as very enjoyable and comfortable for prolonged durations.

Daylight

The average length of the day in January is 11h and 31min.
On the first day of the month, sunrise is at 06:56 and sunset at 18:21. On the last day of January, in Willemstad, sunrise is at 07:00 and sunset at 18:37 AST.

Sunshine

In Willemstad, Curaçao, the average sunshine in January is 8.4h.

UV index

In January, the average daily maximum UV index in Willemstad is 10. A UV Index value of 8 to 10 symbolizes a very high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 10 in January translates into the following instructions:
Skin and eyes are vulnerable without protection. Ensure you always take precautions. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Sunscreen of at least SPF 30 should be applied generously and reapplied often on overcast days, especially post swim or outdoor exercise. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.