July weather forecast
Batam, Indonesia

In July, Batam's weather trends showcase a continuity in the slight drop in rainfall initiated in June. Humidity and temperature remain fairly stable, displaying the consistent climatic conditions typical of the region. With the rainfall reducing to 81mm (3.19"), July marks a shift from the higher precipitations of previous months. July's drier climate is a somewhat welcome change, interrupting the island’s persistent dense rainfall schedule. As the month closes and gives way to August, a marginal increase in rainfall is expected, returning to the well-worn wet trend.

Temperature

Batam ushers in July with an average high-temperature of a still hot 30.3°C (86.5°F), showing a close resemblance to the previous month. July in Batam sees a slight dip to an average low temperature of 26.9°C (80.4°F) from the daytime highs.

Heat index

During July, the heat index is evaluated at a sweltering 37°C (98.6°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In July, the average relative humidity in Batam, Indonesia, is 75%.

Rainfall

In Batam, during July, the rain falls for 22.8 days and regularly aggregates up to 81mm (3.19") of precipitation. Throughout the year, in Batam, Indonesia, there are 267.5 rainfall days, and 1342mm (52.83") of precipitation is accumulated.

Daylight

In July, the average length of the day in Batam is 12h and 10min.
On the first day of the month, sunrise is at 06:02 and sunset at 18:13. On the last day of July, sunrise is at 06:05 and sunset at 18:15 WIB.

Sunshine

In Batam, the average sunshine in July is 8.6h.

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. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: In July, the maximum UV index of 7 translates into these guidelines:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.