January weather forecast
Cirebon, Indonesia

Cirebon, Indonesia kicks off the year with predictable tropical weather. High humidity levels, with a relative average of 79%, dominate the January climate. Strikingly, the ocean temperature in Cirebon remains warm throughout the year, making this seaside city an all-year-round swimsuit destination. January often sees rainfall, with an average of 188mm (7.4") falling across the city. This blend of tropical moisture and warm sea temperatures makes for dramatic ocean views and lush landscapes around the city.

Temperature

In Cirebon, January's average high-temperature stands at a moderately hot 29.6°C (85.3°F), closely related to the preceding month. Cirebon reports an average low-temperature of 24.7°C (76.5°F) during the subtly cooler January nights.

Heat index

In January, the average heat index is calculated to be a fiery hot 36°C (96.8°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity 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 meaningful for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. 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 in Cirebon is 79%.

Rainfall

In Cirebon, during January, the rain falls for 28.3 days and regularly aggregates up to 188mm (7.4") of precipitation. In Cirebon, during the entire year, the rain falls for 244.1 days and collects up to 1216mm (47.87") of precipitation.

Sea temperature

In Cirebon, in January, the average water temperature is 28.8°C (83.8°F).
Note: Surface water temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are considered superb and highly pleasant for water activities over extended periods.

Daylight

In January, the average length of the day in Cirebon is 12h and 28min.
On the first day of the month, sunrise is at 05:33 and sunset at 18:04. On the last day of January, sunrise is at 05:46 and sunset at 18:11 WIB.

Sunshine

In Cirebon, the average sunshine in January is 9.1h.

UV index

The months with the highest UV index in Cirebon are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Cirebon are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 7 in January transforms into the following instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be attentive! The UV exposure is heightened with reflections from sand and water.