Last updated: August 21, 2025
In January, Oarai, Japan experiences a diverse range of temperatures, with maximums reaching 15°C (60°F) and minimums dropping to -3°C (27°F), yielding an average of 6°C (43°F). This month is characterized by a moderate precipitation level of 53 mm (2.1 in) spread over six days, making it a relatively wet period. With an average humidity of 76%, visitors should be prepared for chilly, damp weather that adds a unique charm to this coastal town during the winter months.
In January, Oarai, Japan, welcomes the winter chill with temperatures ranging from a brisk -3°C (27°F) at night to a mild 15°C (60°F) during the day. The average temperature hovers around 6°C (43°F), setting the stage for cozy get-togethers and stunning landscapes kissed by frost. As the month unfolds, there's a gradual transition towards the warmer days of February, where temperatures see a slight increase and nighttime lows rise to -1°C (30°F). Interestingly, despite January's cold start, the region experiences a notable warmth trend as spring approaches, with temperatures climbing steadily each month, offering a tantalizing glimpse of the vibrant season ahead. This transition invites visitors to enjoy the crisp winter air while anticipating the blossoming beauty just around the corner.
In January, Oarai, Japan experiences relatively mild precipitation, with a total of 53 mm (2.1 in) falling over just 6 days. This marks a slight decrease compared to February's 50 mm (2.0 in), indicating a trend of stable winter conditions. As the months progress, March sees a significant uptick, soaring to 150 mm (5.9 in) across 11 days, a clear indication that spring approaches with wetter weather. By July, the region peaks in precipitation, reaching 209 mm (8.2 in) over 19 days, further highlighting a seasonal shift from the brisk winter to a more tumultuous summer climate. The rainy periods tend to extend into the fall months, peaking again in October with 258 mm (10.2 in), showcasing Oarai's dynamic weather patterns throughout the year.
In Oarai, Japan, January brings a humidity level of 76%, setting the stage for a winter characterized by a notable level of moisture in the air. As the months progress into February, this figure dips slightly to 75%, illustrating a trend toward marginally lower humidity. However, by the time we get to March, the humidity continues to decrease, dropping to 72%, making it the driest month of this season. As spring unfolds in April, humidity levels creep back up to 73%, leading into a more humid period in May, where it spikes to 80%. The trend clearly shifts to a more humid climate as June marks a significant jump to 87%, reaching its peak in the summer months, with July and August experiencing humidity levels soaring to 92% and 90%, respectively. This pattern of elevated humidity persists into early autumn, gradually reducing to 84% in September before settling back to 80% in October. A slow decline continues, with November and December reflecting 77%, demonstrating that while Oarai experiences fluctuations throughout the year, the winter months retain a consistent humidity that gradually transforms as the seasons change.
In January, Oarai, Japan experiences a moderate UV Index of 3, with a burn time of about 30 minutes under direct sunlight. As the months progress, this metric steadily rises, peaking in June and July at an extreme UV Index of 11, where the burn time decreases significantly to just 10 minutes. Notably, the UV Index shows a gradual increase from January to May, transitioning to very high levels in April and May, before reaching its maximum intensity in the summer months. Following this peak, UV levels taper off in late summer and fall, ultimately returning to moderate levels by December. This seasonal pattern highlights the importance of sun protection, especially during the sunnier months. For more detailed insights, visit the Oarai UV Index.
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In Oarai, Japan, January begins with a modest 187 hours of sunshine, setting the stage for a gradual increase as the year unfolds. As winter transitions to spring, February and March witness a notable rise, with 235 and 260 hours respectively, hinting at the awakening of nature. The warmth continues to build in April and May, where sunny days peak at 278 and 283 hours, showcasing the beauty of spring. However, the sun begins to take a dip in June, with 270 hours, before hitting a high of 288 hours in the sweltering embrace of August. As summer gives way to fall, the daylight hours gradually decrease, settling at 240 in September and continuing the decline into the cooler months of October at 214 hours and November at 232 hours. December brings a cozy close to the year with 226 hours, leaving Oarai's residents eagerly anticipating the return of longer days and sunshine as January rolls around again.
In Oarai, Japan, the likelihood of sunny weather in January stands at a moderate 55%, making it one of the sunnier months as the year begins. This aligns with a trend of increasing sunshine through the winter months, peaking in December with a 65% chance before slightly dipping in January. As the year unfolds, February shows an impressive 69% likelihood of sun, indicating a gradual shift towards brighter days. However, this sunny trend wanes as spring approaches, with March experiencing a notable drop to 41%. Overall, while January offers a balanced start with a decent chance of sunshine, the transition into spring marks a less predictable weather pattern for Oarai residents and visitors alike.
In Oarai, Japan, the transition from winter to spring is beautifully reflected in the gradual increase of daylight hours. Starting from 9 hours in January, the daylight gradually extends, reaching 10 hours in February and 11 hours in March as the days grow longer with the approach of spring. By April, the daylight duration enjoys a notable leap to 13 hours, peaking at 14 hours in both May and June—the height of summer's embrace. As summer fades into fall, there's a gentle decline in daylight, with 13 hours in August, tapering down to 12 hours in September and continuing to decrease through the autumn months, ending the year once again at 9 hours in December. This cycle showcases not just the changing seasons but also the rhythmic dance of light that defines life in this coastal town.
In Oarai, Japan, January brings a crisp wind with an average speed of 4.3 m/s (10 mph), a characteristic that remains consistent into February. As the seasons transition, the wind slightly softens to 4.2 m/s (9 mph) in March, hinting at the gentle onset of spring. By April, however, a renewing vigor returns with an increase to 4.7 m/s (10 mph), creating a lively atmosphere as the cherry blossoms begin to bloom. The winds start to mellow again in May, dipping to 3.9 m/s (9 mph), and continue to lessen through the summer months, reaching a calm 3.0 m/s (7 mph) in July. As autumn approaches, the winds pick up again, with modest speeds of around 4.2 m/s (9 mph) by September, before culminating back to January's briskness in December, illustrating a fascinating rhythm of nature as each month unfolds in Oarai.
Weather in Oarai varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Oarai, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February both showcase relatively mild winter weather, but February tends to be slightly warmer and wetter. In January, the temperatures range from a minimum of -3°C (27°F) to a maximum of 15°C (60°F), with an average of 6°C (43°F) and a total precipitation of 53 mm (2.1 in) over 6 days. In contrast, February offers a minimum temperature of -1°C (30°F) and a maximum of 18°C (65°F), averaging at 6°C (44°F), and a total precipitation of 50 mm (2.0 in) spread across 8 days. Both months have high humidity levels, though January is slightly more humid at 76% compared to February’s 75%. For more specific conditions during this month, check out Oarai weather in February.
In January, temperatures in Oarai range from a chilly minimum of -3°C (27°F) to a maximum of 15°C (60°F), with an average of 6°C (43°F). The month sees around 53 mm (2.1 in) of precipitation over 6 days, and humidity levels hover around 76%. In contrast, March brings a noticeable warming trend, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 20°C (69°F) and an average of 10°C (50°F). However, March is also wetter, with precipitation reaching 150 mm (5.9 in) across 11 days, while humidity remains slightly lower at 72%. For more detailed information, you can check Oarai weather in March.
In January, temperatures are considerably lower, with minimums dipping to -3°C (27°F) and maximums reaching only 15°C (60°F), while April boasts milder temperatures, starting at a minimum of 3°C (37°F) and peaking at 23°C (74°F). Precipitation also varies significantly, with January receiving 53 mm (2.1 in) over just 6 days, compared to April's wetter climate, where 129 mm (5.1 in) falls across 11 days. Interestingly, humidity levels are similar in both months, with January at 76% and April slightly lower at 73%. For more details on the April weather, check this link: Oarai weather in April.
January weather tends to be much cooler compared to May, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 15°C (60°F), and an average of 6°C (43°F). The month sees about 53 mm (2.1 in) of precipitation over approximately six days, accompanied by a relative humidity of 76%. In contrast, May brings significantly warmer conditions with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 27°C (82°F), boasting an average of 18°C (65°F). Precipitation increases to 143 mm (5.6 in) over about twelve days, and humidity rises slightly to 80%. For more details on the weather in May, visit Oarai weather in May.
In January, the weather is quite chilly, with temperatures ranging from a low of -3°C (27°F) to a mild high of 15°C (60°F). Average humidity sits at 76%, and the month experiences about 53 mm (2.1 in) of precipitation over approximately 6 days. In contrast, June brings significantly warmer temperatures, with a minimum of 15°C (58°F) and a maximum of 30°C (86°F), averaging around 21°C (70°F). The month is wetter as well, with 155 mm (6.1 in) of rain spread across about 14 days, along with increased humidity at 87%. For more details on June weather, you can check out Oarai weather in June.
January and July present stark contrasts in weather conditions. In January, the average temperature hovers around 6°C (43°F), dipping as low as -3°C (27°F) during the coldest nights, while reaching a maximum of 15°C (60°F). The month is relatively dry with 53 mm (2.1 in) of precipitation spread over 6 days and a humidity level of 76%. In stark comparison, July boasts much warmer temperatures, with averages around 24°C (76°F) and highs peaking at 31°C (89°F). It is also significantly wetter, receiving 209 mm (8.2 in) over 19 days, and the humidity rises to 92%. This dramatic shift in climate highlights the seasonal variations that characterize the region. For a closer look at July weather specifics, you can check Oarai weather in July.
In January, temperatures in Oarai are notably cooler, with averages around 6°C (43°F) and nighttime lows dipping to -3°C (27°F), while the maximums reach up to 15°C (60°F). The month experiences about 53 mm (2.1 in) of precipitation over six days, accompanied by a humidity level of 76%. In contrast, August brings much warmer weather with average temperatures soaring to 26°C (80°F) and highs peaking at 33°C (92°F). This month sees a greater amount of rainfall, measuring 109 mm (4.3 in) over 13 days, and experiences higher humidity levels of 90%. For a detailed look at the weather specifics for August, you can visit Oarai weather in August.
January and September present stark contrasts in weather. In January, temperatures range from a chilly -3°C (27°F) at night to a mild 15°C (60°F) during the day, with an average temperature around 6°C (43°F). The month sees a moderate level of precipitation, totaling 53 mm (2.1 in) over just 6 days, with humidity at 76%. In sharp contrast, September boasts significantly warmer temperatures, with nighttime lows around 15°C (60°F) and daytime highs peaking at 32°C (90°F), resulting in an average of 23°C (74°F). The rainfall in September is much heavier, amounting to 176 mm (6.9 in) spread over 17 days, accompanied by higher humidity at 84%. For more details on the weather in September, visit Oarai weather in September.
January and October exhibit striking contrasts in weather. In January, temperatures range from a chilly minimum of -3°C (27°F) to a modest maximum of 15°C (60°F), with an average of 6°C (43°F). The month sees around 53 mm (2.1 in) of precipitation over 6 days, coupled with a humidity level of 76%. In comparison, October experiences much warmer conditions, with temperatures spanning from a minimum of 10°C (51°F) to a high of 29°C (85°F) and an average of 19°C (66°F). However, it also brings a significant increase in rainfall, with 258 mm (10.2 in) of precipitation spread across 16 days and a humidity level of 80%. For more details on the weather patterns in October, you can refer to Oarai weather in October.
In January, temperatures range from a chilly minimum of -3°C (27°F) to a mild maximum of 15°C (60°F), with an average of 6°C (43°F). The month experiences about 53 mm (2.1 in) of precipitation over approximately 6 days, and the humidity hovers around 76%. In contrast, November offers more moderate weather, with temperatures from a minimum of 4°C (39°F) to a maximum of 22°C (72°F) and an average of 14°C (57°F). However, November is wetter, receiving 102 mm (4.0 in) of precipitation across 10 days, while the humidity remains slightly higher at 77%. For more detailed insights on November weather, you can check Oarai weather in November.
In comparing the weather between January and December, January tends to be cooler, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 15°C (60°F), while December sees slightly milder conditions, with temperatures from 0°C (33°F) to 20°C (68°F). Precipitation is also higher in December, averaging 73 mm (2.9 in) over 8 days, compared to January's 53 mm (2.1 in) over just 6 days. Humidity remains relatively similar, with January at 76% and December at 77%. For more detailed insights into the weather patterns, you can check Oarai weather in December.
January in Oarai brings a distinct chill that's quite different from the milder months that follow. With temperatures averaging 6°C (43°F) and dipping as low as -3°C (27°F), this month is characterized by its brisk air and notable humidity of 76%. Although precipitation is moderate, with around 53 mm spread over about 6 days, the crisp winter atmosphere creates a serene yet invigorating experience. If you're looking to explore the unique beauty that winter brings to Oarai, you can learn more about what to expect throughout the year at Oarai Climate.