Osaka weather in January
Osaka in January averages 6°C (44°F), 47 mm of rain and 4.7 hours of sun a day.
Of the twelve months in Osaka, January is the coldest, the driest and the dullest.

- Average temp
- 6°C (44°F)
3–10°C · 37–49°F
- Rainfall
- 47 mm
Not much rain
- Sunshine
- 4.7 h
hours per day
What is Osaka like in January?
Daytime
Days are cool.
Rain
Rain is usually light.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Osaka in January?
A warm mid-layer
Nights drop to around 3°C (37°F).
January compared with December and February
January in Osaka is 2.4°C cooler than December and about as wet as it, which averages 9°C (48°F).
January in Osaka is about the same temperature as February and 13 mm drier than it, which averages 7°C (44°F).
Daylight in Osaka in January
On 15 January the sun is up for 10 hours 4 minutes in Osaka, rising about 07:05 and setting about 17:09 local time.
January ends 36 minutes longer than it begins, so the last week of the month is a different length of day from the first.
That is 4 hours 24 minutes short of June, the longest-lit month here.
Where to stay in Osaka
Dates are a starting point for January.

Travel guides for Osaka
What to read before you book.
Osaka weather by month
TemperatureRainfall
How January compares with the rest of the year
January is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 6°C / 44°F | 47 mm |
| February | 7°C / 44°F | 61 mm |
| March | 10°C / 50°F | 103 mm |
| April | 15°C / 60°F | 103 mm |
| May | 20°C / 69°F | 136 mm |
| June | 24°C / 76°F | 185 mm |
| July | 28°C / 82°F | 175 mm |
| August | 30°C / 85°F | 113 mm |
| September | 26°C / 78°F | 146 mm |
| October | 20°C / 68°F | 140 mm |
| November | 14°C / 57°F | 73 mm |
| December | 9°C / 48°F | 56 mm |
Similar weather in January
Other destinations whose January averages sit close to this one.
Check another month
This is the month you are reading. Change either side to look at another.
FAQs about Osaka in January
January climate averages for Osaka, 1991–2020.
Osaka averages 6°C (44°F) in January, ranging from about 3°C (37°F) at night to 10°C (49°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Barely. January sees only about 47 mm, so rain is unlikely to affect your plans.
They are about the same. January averages 6°C (44°F) and February 7°C (44°F), so temperature alone will not decide between them.
January is 2.4°C cooler than December, and about as wet.
It is outside the easiest window. The most comfortable stretch here is May to October; January sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.
About 4.7 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what January is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 10 hours 4 minutes of daylight in mid-January, against 14 hours 28 minutes in June and 9 hours 51 minutes in December.
On 15 January, sunrise is about 07:05 and sunset about 17:09 local time. Both shift across the month — the month ends 36 minutes longer than it starts.



