Weather in Okinawa Prefecture, Japan in January

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Visiting Okinawa Prefecture, Japan in January

The weather in January is slightly cooler than the previous month. January has average maximum temperatures of 18°C (65°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 45.7% making it quite sunny but with regular periods of cloudy and overcast skies. There are 4.8 hours of sunshine per day. It is not a good time for sunbathing in Okinawa Prefecture.

January has total rainfall of 0.5cm (0.2inches) making it mostly dry with very rare light showers although there are 17.4 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much.

Sea temperatures are a warm 22°C (72°F). January is a good month for swimming in Okinawa Prefecture with comfortable temperatures for most people. The sea temperature in January is marginally cooler than the previous month and temperatures continue to drop slightly into February.

Consider visiting Okinawa Prefecture in the months of July, August, September, October, for the best beach weather. Also consider one of our other suggestions for January.

Can you sunbathe in Okinawa Prefecture in January?

No, January is not a good time for sunbathing in Okinawa Prefecture.

January has average maximum temperatures of 18°C (65°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 45.7% making it quite sunny but with regular periods of cloudy and overcast skies. There are 4.8 hours of sunshine per day. January has total rainfall of 0.5cm (0.2inches) making it mostly dry with very rare light showers although there are 17.4 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much.

More about January temperature and sunshine.

Can you swim in Okinawa Prefecture in January?

Yes, January is a good month for swimming in Okinawa Prefecture with warm sea temperatures 22°C (72°F).

More about January sea temperatures.

Is January a good time to holiday in Okinawa Prefecture?

Yes, January is a good time for a holiday in Okinawa Prefecture.

January has average maximum temperatures of 18°C (65°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 45.7% making it quite sunny but with regular periods of cloudy and overcast skies. There are 4.8 hours of sunshine per day. January has total rainfall of 0.5cm (0.2inches) making it mostly dry with very rare light showers although there are 17.4 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much. It is not a good time for sunbathing in Okinawa Prefecture. Sea temperatures are a warm 22°C (72°F). January is a good month for swimming in Okinawa Prefecture with comfortable temperatures for most people.

More about the January temperatures and sunshine.

Is Okinawa Prefecture warm in January?

Yes, Okinawa Prefecture is not that warm but sunbathing may be possible on some clear days in January.

The average maximum temperature in Okinawa Prefecture in January is 18°C (65°F). The average maximum temperature is 20°C (67°) in the previous month and 19°C (67°F) in the next month.

The average temperature in Okinawa Prefecture in January is 16°C (61°F). The average temperature is 18°C (64°F) in the previous month and 17°C (63°F) in the next month.

More info about the January temperatures and sunshine.

How sunny is Okinawa Prefecture in January?

The average day light hours per day in Okinawa Prefecture in January are 10.7. The sunshine percentage is 45.7% making it quite sunny but with regular periods of cloudy and overcast skies. There are 4.8 hours of sunshine per day.

More about January sunshine.

Temperature in Okinawa Prefecture in January

The weather in January is slightly cooler than the previous month. The average maximum temperature in Okinawa Prefecture in January is 18°C (65°F). The average maximum temperature is 20°C (67°F) in the previous month and 19°C (67°F) in the next month.

The average temperature in Okinawa Prefecture in January is 16°C (61°F). The average temperature is 18°C (64°F) in the previous month and 17°C (63°F) in the next month.

The average minimum temperature in Okinawa Prefecture in January is 14°C (57°F). The minimum temperature is 16°C (60°F) in the previous month and 15°C (59°F) in the next month.

Sunshine in Okinawa Prefecture in January

The days in January are marginally longer than the previous month and the days continue to get slightly longer into February. January has marginally more hours of sunshine than the previous month and hours of sunshine continue to rise slightly into February. During January the average day light hours are 10.7 per day in Okinawa Prefecture. The sunshine percentage is 45.7% making it quite sunny but with regular periods of cloudy and overcast skies. There are 4.8 hours of sunshine per day.

The ultraviolet index in Okinawa Prefecture in January is typically 5.8 during January. An ultraviolet index reading of 3 to 5 indicates there is a moderate risk of harm from unprotected sun exposure. Keep out of the sun during the strongest hours around midday when unprotected skin risks burning in less than 30 minutes. For the sensitive wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days, and after swimming or sweating. Tanning for hours is possible with the right application of sun cream. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Okinawa Prefecture in January

The average sea water temperature in Okinawa Prefecture in January is 22.4°C (72.3°F) which is warm and pleasant for relaxing and swimming for long periods. The sea temperature in January is marginally cooler than the previous month and temperatures continue to drop slightly into February.

Rainfall in Okinawa Prefecture in January

January weather is slightly drier than the previous month. January has a few more days of rain than the previous month. The average total rainfall in Okinawa Prefecture in January is 0.5cm (0.2inches) and on average there are 17.4 rainy days in January making it a wet time to visit the beach.

Humidity in Okinawa Prefecture in January

The maximum dew point (an indicator of humidity) in Okinawa Prefecture in January is 12°C (54°F) which is very comfortable. The dew point is 13°C (56°F) in the previous month and 14°C (14°F) in the next month.

The average maximum relative humidity in Okinawa Prefecture in January is typically 80.4%. The maximum relative humidity is 78.9% in the previous month and 82.8% in the next month.

The average relative humidity in Okinawa Prefecture in January is typically 68.6%. The average relative humidity is 66.7% in the previous month and 71.6% in the next month.

Wind Speed in Okinawa Prefecture in January

The average maximum wind speed in Okinawa Prefecture in January is typically 28KM/H (17MPH). The average maximum wind speed is 29KM/H (18MPH) in the previous month and 28KM/H (17MPH) in the next month.

The average wind speed in Okinawa Prefecture in January is typically 20KM/H (12MPH). The average wind speed is 20KM/H (13MPH) in the previous month and 20KM/H (12MPH) in the next month.

The average wind direction in Okinawa Prefecture in January is from the East.

Monthly Averages

Suggested Beaches in January

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Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.