January weather forecast
Oranjestad, Aruba

Starting the year, Oranjestad, Aruba, experiences a gentle transition from the winter season. The climate remains moderate, with temperatures dipping to about 24.5°C (76.1°F) on average and cresting to around 30°C (86°F) in the day. Notably, January presents about 39mm (1.54") of rain spread within 8.4 days, indicating relatively scattered showers with some space of dry moments. The presence of rain is associated with increased cloud cover, inhibiting the amount of sunlight reaching the ground. Besides the rain, the city experiences high humidity giving the air a slightly heavy feeling but not uncomfortably sticky.

Temperature

January is the coldest month in Oranjestad, with the temperature often reaching an average high of 30°C (86°F) and an average low of 24.5°C (76.1°F).

Heat index

The heat index in January is estimated at a fiery hot 37°C (98.6°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In January, the average relative humidity is 77.5%.

Rainfall

In Oranjestad, in January, during 8.4 rainfall days, 39mm (1.54") of precipitation is typically accumulated. Throughout the year, there are 64.6 rainfall days, and 472mm (18.58") of precipitation is accumulated.

Sea temperature

In January, the average sea temperature is 27.2°C (81°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In January, the average length of the day is 11h and 29min.
On the first day of the month, sunrise is at 07:01 and sunset at 18:25. On the last day of January, sunrise is at 07:05 and sunset at 18:41 AST.

Sunshine

In January, the average sunshine in Oranjestad is 8h.

UV index

The average daily maximum UV index in January is 10. A UV Index estimate of 8 to 10 represents a very high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum daily UV index of 10 during January morphs into the following directions:
Never neglect to protect yourself. Eyes and skin can suffer swift damage. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Be attentive! The UV exposure is heightened with reflections from sand and water.