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 20°. The average maximum temperature is 21° in the previous month and 21° in the next month.

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

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

Sunshine in Okinawa Prefecture in January

The average day light hours per day in Okinawa Prefecture in January are 10.8 and there are 5 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 6.3 during January. An ultraviolet index reading of 6 to 7 indicates a high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 20 minutes. Protection against skin and eye damage is needed. Tanning will be safest before 10am and after 4pm. For those with sensitive skin stay in the shade and 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. 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 23.4° 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 1.3cm and on average there are 19.9 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 14° which is comfortable for everyone. The dew point is 15° in the previous month and 16° in the next month.

The average maximum relative humidity in Okinawa Prefecture in January is typically 82.2%. The maximum relative humidity is 79.6% in the previous month and 84.7% in the next month.

The average relative humidity in Okinawa Prefecture in January is typically 70.9%. The average relative humidity is 67.8% in the previous month and 74% in the next month.

Wind Speed in Okinawa Prefecture in January

The average maximum wind speed in Okinawa Prefecture in January is typically 29kmh. 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 21kmh in the previous month and 20kmh in the next month.

The average wind direction in Okinawa Prefecture in January is from the North-Northeast.

Monthly Averages

Suggested Beaches in January

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