Osaka in January
In January, Osaka averages 10°C (50°F) during the day and 2°C (36°F) at night, with around 5 days of rain (45 mm total).
ShoulderConditions are cool — bring a jacket for evenings. Occasional showers are likely but won't dominate.
January in Osaka is outside the typical sweet spot for sightseeing weather. It can still be a great time to visit if you have specific reasons (festivals, off-season pricing, etc.).
How January compares to the rest of the year in Osaka
January is one of the coolest months in Osaka (12th of 12) and one of the driest months (10th of 12). Daytime temperature runs 11°C below the annual average (21°C). January runs 2°C cooler than December (12°C) and warms a further 1°C into February (11°C).
January sunrise & sunset in Osaka
Times shown for Osaka local time (Asia/Tokyo), calculated for the 15th of January. They shift by a few minutes day to day across the month.
Photography light in Osaka — January
Golden-hour and blue-hour windows for the 15th of January, in Osaka's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Osaka in January
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on January's tier (Shoulder) and Osaka's popularity.
Crowds & pricing — January in Osaka
Osaka is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Why this tier: comfortable tourism weather
Sun & mosquito risk — January in Osaka
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Osaka in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 10°C / 50°F | 2°C / 36°F | 45 mm | 5 | 0 |
| February | 11°C / 52°F | 3°C / 37°F | 65 mm | 5 | 0 |
| March | 14°C / 57°F | 6°C / 43°F | 105 mm | 8 | 0 |
| April | 20°C / 68°F | 10°C / 50°F | 125 mm | 9 | 0 |
| May | 25°C / 77°F | 15°C / 59°F | 135 mm | 9 | 0 |
| June | 29°C / 84°F | 20°C / 68°F | 180 mm | 11 | 0 |
| July | 33°C / 91°F | 24°C / 75°F | 155 mm | 9 | 0 |
| August | 33°C / 91°F | 25°C / 77°F | 110 mm | 7 | 0 |
| September | 29°C / 84°F | 21°C / 70°F | 160 mm | 9 | 0 |
| October | 23°C / 73°F | 15°C / 59°F | 110 mm | 8 | 0 |
| November | 18°C / 64°F | 10°C / 50°F | 70 mm | 6 | 0 |
| December | 12°C / 54°F | 4°C / 39°F | 45 mm | 5 | 0 |
Other cities with similar January weather
🌍 See the full ranked list of climate twins for Osaka in January →
Frequently asked questions
How hot is Osaka in January?
In January, Osaka averages a high of 10°C (50°F) and a low of 2°C (36°F) — generally cool.
Does it rain a lot in Osaka in January?
January sees occasional rain in Osaka, with about 5 rainy days on average.
Is January a good time to visit Osaka?
January is cool and mostly dry. It suits travelers who are comfortable with cool weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Osaka in January?
Pack a warm jacket and layers. See the full January packing list for Osaka for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.