January Weather in Siwan, India

Last updated: August 23, 2025

In January, the average temperature in Siwan, India hovers around 15°C (59°F), making it a pleasant time to visit. Expect minimums of 4°C (40°F) and maximums reaching 29°C (84°F). However, be prepared for occasional rain, with an average precipitation of 10 mm (0.4 in) over 2 days. Overall, humidity levels sit comfortably at around 65%, creating a balanced atmosphere throughout the month.

January Temperature in Siwan

In January in Siwan, the average temperature is 15°C (59°F). Maximums can reach 29°C (84°F) and minimums can be as low as 4°C (40°F). This makes Siwan a pleasant destination for travel, offering a comfortable climate for outdoor activities and exploration.

January Weather in Siwan: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Siwan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siwan, January typically has an average temperature of 15°C (59°F), with highs reaching up to 29°C (84°F) and lows dropping to around 4°C (40°F).

Data source: Temperature data for Siwan generated using information from the Copernicus Climate Change Service.

January Precipitation in Siwan

In Siwan in January, the precipitation amount is 10 mm (0.4 in) over a period of 2 days.

January Precipitation Trends in Siwan

The chart displays monthly precipitation patterns in Siwan, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Siwan, January typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 2 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Siwan

In Siwan in January humidity is 65%. With an average temperature of 15°C (59°F), this humidity feels like a pleasantly mild atmosphere, making it ideal for exploring the city, though occasional warmth might prompt you to seek shade during midday.

January Average Humidity in Siwan

This chart illustrates the average monthly humidity levels in Siwan, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Siwan is approximately 65%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Siwan

In Siwan in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Siwan.

Maximum UV Index Levels in Siwan for January

The chart shows the monthly maximum UV Index (UVI) for Siwan in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Siwan typically reaches 5, which falls under the moderate exposure category.

Data source: Siwan January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Siwan Compares to Other Months

Weather in Siwan varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Siwan, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Siwan, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	15°C (59°F)	10 mm (0.4 inches)	65%	moderate
February Weather	19°C (66°F)	10 mm (0.4 inches)	55%	high
March Weather	25°C (77°F)	10 mm (0.4 inches)	39%	very high
April Weather	30°C (87°F)	14 mm (0.5 inches)	24%	very high
May Weather	31°C (89°F)	69 mm (2.7 inches)	36%	very high
June Weather	32°C (89°F)	183 mm (7.2 inches)	65%	very high
July Weather	30°C (86°F)	439 mm (17.3 inches)	90%	extreme
August Weather	30°C (86°F)	337 mm (13.3 inches)	91%	extreme
September Weather	29°C (85°F)	250 mm (9.8 inches)	91%	extreme
October Weather	27°C (81°F)	56 mm (2.2 inches)	86%	very high
November Weather	22°C (72°F)	0 mm (0.0 inches)	79%	high
December Weather	17°C (63°F)	21 mm (0.8 inches)	75%	moderate