Weather in Okinawa Prefecture, Japan in January

So you're interested in going to Okinawa Prefecture, Japan in January

January is a slightly cold and rainy time for sunbathing in Okinawa Prefecture. January is a good month for swimming in Okinawa Prefecture with warm sea temperatures. Consider visiting Okinawa Prefecture in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for January.

Temperature in Okinawa Prefecture in January

The average maximum temperature in Okinawa Prefecture in January is 18°. The average maximum temperature is 20° in the previous month and 19° in the next month.

The average temperature in Okinawa Prefecture in January is 16°. The average temperature ranges is 18° in the previous month and 17° in the next month.

The average minimum temperature in Okinawa Prefecture in January is 14°. The minimum temperature is 16° in the previous month and 15° in the next month.

Sunshine in Okinawa Prefecture in January

The average day light hours per day in Okinawa Prefecture in January are 10.7 and there are 4.8 hours of sunshine per day on average during January making it a sunny month that is overcast at times.

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° which is warm and pleasant for relaxing and swimming for long periods.

Rainfall in Okinawa Prefecture in January

The average total rainfall in Okinawa Prefecture in January is 0.5cm 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° which is very comfortable. The dew point is 13° in the previous month and 14° 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 28kmh. The average maximum wind speed is 29kmh in the previous month and 28kmh in the next month.

The average wind speed in Okinawa Prefecture in January is typically 20kmh. The average wind speed is 20kmh in the previous month and 20kmh 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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