January Weather in Otaki, Japan

Last updated: August 23, 2025

In January, the average temperature in Otaki, Japan is a mild 7°C (46°F), with a minimum dipping to 0°C (31°F) and a maximum reaching 18°C (65°F). Expect about 65 mm (2.6 in) of precipitation spread over 6 days, contributing to an average humidity of 70%. Prepare for a mix of cooler days and occasional rain as you explore!

January Temperature in Otaki

In January in Otaki, the average temperature is 7°C (46°F). Maximums can reach 18°C (65°F), and minimums can be as low as 0°C (31°F). This pleasant range of temperatures makes Otaki a great destination for exploring the outdoors while enjoying mild weather.

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

The chart illustrates January temperature patterns in Otaki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Otaki, January typically has an average temperature of 7°C (46°F), with highs reaching up to 18°C (65°F) and lows dropping to around 0°C (31°F).

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

January Precipitation in Otaki

In Otaki, in January, the precipitation amount is 65 mm (2.6 in) over a period of 6 days.

January Precipitation Trends in Otaki

The chart displays monthly precipitation patterns in Otaki, 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 Otaki, January typically receives around 65 mm (2.6 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Otaki

In Otaki in January, humidity is 70%. With an average temperature of 7°C (46°F), this humidity feels like a chilly dampness that clings to your skin, making every step less comfortable and requiring extra layers to stay warm while exploring.

January Average Humidity in Otaki

This chart illustrates the average monthly humidity levels in Otaki, 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 Otaki is approximately 70%, 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 Otaki

In Otaki in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Otaki for better planning.

Maximum UV Index Levels in Otaki for January

The chart shows the monthly maximum UV Index (UVI) for Otaki 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 Otaki typically reaches 4, which falls under the moderate exposure category.

Data source: Otaki 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 Otaki Compares to Other Months

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

This table compares monthly weather conditions in Otaki, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (46°F)	65 mm (2.6 inches)	70%	moderate
February Weather	8°C (47°F)	57 mm (2.3 inches)	69%	moderate
March Weather	11°C (53°F)	163 mm (6.4 inches)	68%	very high
April Weather	15°C (59°F)	112 mm (4.4 inches)	73%	very high
May Weather	19°C (67°F)	135 mm (5.3 inches)	81%	extreme
June Weather	22°C (72°F)	185 mm (7.3 inches)	88%	extreme
July Weather	26°C (78°F)	207 mm (8.2 inches)	94%	extreme
August Weather	28°C (82°F)	121 mm (4.7 inches)	87%	extreme
September Weather	24°C (76°F)	196 mm (7.7 inches)	83%	very high
October Weather	20°C (68°F)	274 mm (10.8 inches)	78%	high
November Weather	15°C (60°F)	122 mm (4.8 inches)	74%	moderate
December Weather	10°C (51°F)	87 mm (3.4 inches)	72%	moderate