Japan
Okinawa in January: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Okinawa in January is climatically well suited to city breaks and active holidays and hiking. The average daily high is around 20 °C, and the sea is about 23 °C. With about 13 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
65/100 · #8
Warmth
#11
Dryness
#4
Sun
#11
Sea warmth
#10
Published best categories: Active
Okinawa · JanuaryPhoto: Kugel~commonswiki · CC BY-SA 4.0Climate facts
- Average high
- 20 °C
- Average low
- 18 °C
- Sea
- 23 °C
- Rainy days (est.)
- 13 rainy days (est.)
- Sun (est.)
- 3 h/day
- Humidity
- 75 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| December | 21 | 20 | 13 | 66 | 3.0 | 75 | 6.5 | 24 | 72 |
| January (selected) | 20 | 18 | 13 | 64 | 3.0 | 75 | 6.3 | 23 | 65 |
| February | 20 | 18 | 11 | 60 | 3.7 | 77 | 6.1 | 22 | 68 |
How do the previous and next months compare?
Baseline: January (65/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| December | +7 | +1.7 °C | +1.8 °C | -0.7 | +2.6 mm | ±0 h | -0.2 % | +0.3 m/s | +1.3 °C |
| February | +3 | ±0 °C | -0.1 °C | -2.2 | -4 mm | +0.7 h | +1.7 % | -0.2 m/s | -0.8 °C |
All twelve months in context
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Where to stay in Okinawa
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Useful next decisions
Frequently asked questions
How warm is Okinawa in January?
The average daily high is around 20 °C, with an average daily low of about 18 °C.
Can you swim in Okinawa in January?
The sea is about 23 °C (swimmable).
Does it rain a lot in Okinawa in January?
The curated estimate is about 13 rainy days per month, not a directly measured long-term average. Total precipitation averages around 64 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Okinawa?
By the climate score, April, October, November and December are the strongest months for Okinawa. For a beach trip: May, June, October and November. January is not among them.