July weather forecastSiantan, Indonesia

July

Weather in July

July, like June, is another hot summer month in Siantan, Indonesia, with an average temperature fluctuating between 23.5°C (74.3°F) and 32°C (89.6°F).

Temperature

With the onset of July, Siantan's average high-temperature clocks in at a still hot 32°C (89.6°F), showing a minor fluctuation from the previous month. During the July nights, an average temperature of 23.5°C (74.3°F) is observed.

Heat index

Throughout July, the heat index is calculated to be a blazing hot 45°C (113°F). Heed: Expect heat cramps and heat exhaustion. Continued action may cause heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In Siantan, Indonesia, the average relative humidity in July is 81%.

Rainfall

In July, the rain falls for 18.7 days. Throughout July, 98mm (3.86") of precipitation is accumulated. Throughout the year, there are 282.2 rainfall days, and 1495mm (58.86") of precipitation is accumulated.

Daylight

In July, the average length of the day in Siantan is 12h and 8min.
On the first day of July, sunrise is at 05:43 and sunset at 17:50. On the last day of the month, sunrise is at 05:45 and sunset at 17:53 WIB.

Sunshine

In July, the average sunshine is 8.4h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. 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 threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: An average UV index of 7 in July transforms into this advice:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely.

Updated: Aug 25, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in July, in Siantan, is 32°C (89.6°F), while the average low-temperature is 23.5°C (74.3°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in July is calculated to be 45°C (113°F).

In Siantan, the average relative humidity in July is 81%.

In Siantan, in July, it is raining for 18.7 days, with typically 98mm (3.86") of accumulated precipitation.

The average day length in July is 12h and 8min.

In July, on the first day of the month, sunrise is at 05:43 and sunset at 17:50. On the last day of the month, sunrise is at 05:45 and sunset at 17:53 WIB.

In July, the average sunshine duration is 8.4h.

The months with the highest UV index in Siantan are January through December, with an average maximum UV index of 7.

January through December, with an average maximum UV index of 7, are months with the lowest UV index.

In July, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J July A S O N D

Jun

July

Aug

Average high temperature

32.3°C

32°C

32.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.9km/h

6.7km/h

6.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

7.8

10.2

Average UV index

Average cloud cover

Average visibility

Average temperature in July
Siantan, Indonesia

Average high temperature in July: 32°C

The warmest month (with the highest average high temperature) is August (32.5°C).
The month with the lowest average high temperature is January (30.6°C).

Average low temperature in July: 23.5°C

The months with the highest average low temperature are May and October (24.3°C).
The coldest month (with the lowest average low temperature) is February (23.3°C).

Average pressure in July
Siantan, Indonesia

Average pressure in July: 1009.3mbar

The months with the highest atmospheric pressure are February and March (1009.9mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).

Average wind speed in July
Siantan, Indonesia

Average wind speed in July: 6.1km/h

The windiest month (with the highest average wind speed) is January (6.3km/h).
The calmest month (with the lowest average wind speed) is April (4.4km/h).

Average humidity in July
Siantan, Indonesia

Average humidity in July: 81%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is September (79%).

Average rainfall in July
Siantan, Indonesia

Average rainfall in July: 98mm

The wettest month (with the highest rainfall) is February (161mm).
The driest month (with the least rainfall) is August (74mm).

Average rainfall days in July
Siantan, Indonesia

Average rainfall days in July: 18.7 days

The month with the highest number of rainy days is April (26.6 days).
The month with the least rainy days is July (18.7 days).

Average daylight in July /
Average sunshine in July
Siantan, Indonesia

Average daylight in July: 12h and 6min

The month with the longest days is June (Average daylight: 12h and 6min).
The month with the shortest days is October (Average daylight: 12h and 6min).

Average sunshine in July: 8h and 24min

The month with the most sunshine is September (Average sunshine: 8h and 36min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

Average sunshine days in July
Siantan, Indonesia

Average sunshine days in July: 10.2 days

The months with the most sunshine days are July and August (10.2 days).
The month with the least sunshine days is April (2.3 days).

Average UV index in July
Siantan, Indonesia

Average UV index in July: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in July
Siantan, Indonesia

Average cloud cover in July: 38

The month with the most cloud cover is December (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 37).

Average visibility in July
Siantan, Indonesia

Average visibility in July: 9km

The months with the highest visibility are May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January, February, March, April and December (8km).