January 20° · ☂ 10 February 20° · ☂ 10 ★ March22° · ☂ 10 ★ April25° · ☂ 10 May 27° · ☂ 12 June 30° · ☂ 13 July 32° · ☂ 10 August 32° · ☂ 13 September 31° · ☂ 13 October 28° · ☂ 10 ★ November25° · ☂ 10 December 22° · ☂ 10 Naha in January:cool, frequent rain Naha, Japan · Records from 2006 to 2025. Not a forecast.
Mean high 20° Hottest day 24.4° (2019)
Mean low 15° Coldest night 7.9° (2016)
Rain days 10 days 4-19 by year
Rainfall 99mm Daylight 10.5 → 10.9 h
Naha's 12 months i Best: March, April and November
1 2 3 4 5 6 7 8 9 10 11 12
Trip types Beach Poorcool sea Sightseeing on foot Finemild
Humidity 67% 0 muggy days
Clear days 2 days 15 overcast days
Mean wind 27 km/h 11 windy days
Sea temperature 22.6° 22.1-23° by year (last 6)
Sunrise / sunset (15th) 07:18 / 17:58 Daylight 10.5 → 10.9 h
Naha in January Whale-watching season gets going, with tours leaving Naha Port, and Zamami in the Kerama Islands runs its season from January to late March. By late January Japan's earliest cherry blossoms start opening in the northern Yanbaru area. The sea is too cold for swimming.
January was mild: 20°C by day, 15°C at night, the kind of range where you stop checking the thermometer. The gap between day and night was just 5°C, so it felt much the same around the clock. About 10 days a month saw rain, enough that a wet-weather plan was worth having. Averages hide a lot here: one year saw 4, another 19.
Typhoons i Typhoons: May to October
Date by date i Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
January 1 Friday 1 rain in 2 of 20 yrs 2/20 19° 14° January 2 Saturday 2 rain in 5 of 20 yrs 5/20 20° 15° 1-2 rain on 18% of days 19° 15°
January 3 Sunday 3 rain in 9 of 20 yrs 9/20 20° 15° January 4 Monday 4 rain in 6 of 20 yrs 6/20 20° 16° January 5 Tuesday 5 rain in 9 of 20 yrs 9/20 21° 16° January 6 Wednesday 6 rain in 9 of 20 yrs 9/20 21° 16° January 7 Thursday 7 rain in 3 of 20 yrs 3/20 20° 15° January 8 Friday 8 rain in 10 of 20 yrs 10/20 20° 15° January 9 Saturday 9 rain in 7 of 20 yrs 7/20 19° 15° 3-9 rain on 38% of days 20° 15°
January 10 Sunday 10 rain in 3 of 20 yrs 3/20 19° 15° January 11 Monday 11 rain in 5 of 20 yrs 5/20 20° 15° January 12 Tuesday 12 rain in 9 of 20 yrs 9/20 20° 15° January 13 Wednesday 13 rain in 6 of 20 yrs 6/20 19° 15° January 14 Thursday 14 rain in 5 of 20 yrs 5/20 20° 15° January 15 Friday 15 rain in 7 of 20 yrs 7/20 20° 15° January 16 Saturday 16 rain in 7 of 20 yrs 7/20 20° 15° 10-16 rain on 30% of days 20° 15°
January 17 Sunday 17 rain in 6 of 20 yrs 6/20 20° 15° January 18 Monday 18 rain in 5 of 20 yrs 5/20 20° 15° January 19 Tuesday 19 rain in 6 of 20 yrs 6/20 20° 16° January 20 Wednesday 20 rain in 4 of 20 yrs 4/20 21° 16° January 21 Thursday 21 rain in 10 of 20 yrs 10/20 21° 16° January 22 Friday 22 rain in 10 of 20 yrs 10/20 20° 15° January 23 Saturday 23 rain in 9 of 20 yrs 9/20 19° 14° 17-23 rain on 36% of days 20° 15°
January 24 Sunday 24 rain in 6 of 20 yrs 6/20 19° 14° January 25 Monday 25 rain in 4 of 20 yrs 4/20 19° 14° January 26 Tuesday 26 rain in 7 of 20 yrs 7/20 19° 14° January 27 Wednesday 27 rain in 7 of 20 yrs 7/20 20° 14° January 28 Thursday 28 rain in 7 of 20 yrs 7/20 20° 15° January 29 Friday 29 rain in 7 of 20 yrs 7/20 20° 15° January 30 Saturday 30 rain in 7 of 20 yrs 7/20 20° 15° 24-30 rain on 32% of days 19° 14°
January 31 Sunday 31 rain in 5 of 20 yrs 5/20 20° 15°
January 31 rain on 25% of days 20° 15°
1-2 rain on 18% of days 19° 15° 3-9 rain on 38% of days 20° 15° 10-16 rain on 30% of days 20° 15° 17-23 rain on 36% of days 20° 15° 24-30 rain on 32% of days 19° 14° January 31 rain on 25% of days 20° 15°
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
January 1 Saturday 1 rain in 2 of 20 yrs 2/20 19° 14° January 1 rain on 10% of days 19° 14°
January 2 Sunday 2 rain in 5 of 20 yrs 5/20 20° 15° January 3 Monday 3 rain in 9 of 20 yrs 9/20 20° 15° January 4 Tuesday 4 rain in 6 of 20 yrs 6/20 20° 16° January 5 Wednesday 5 rain in 9 of 20 yrs 9/20 21° 16° January 6 Thursday 6 rain in 9 of 20 yrs 9/20 21° 16° January 7 Friday 7 rain in 3 of 20 yrs 3/20 20° 15° January 8 Saturday 8 rain in 10 of 20 yrs 10/20 20° 15° 2-8 rain on 36% of days 20° 15°
January 9 Sunday 9 rain in 7 of 20 yrs 7/20 19° 15° January 10 Monday 10 rain in 3 of 20 yrs 3/20 19° 15° January 11 Tuesday 11 rain in 5 of 20 yrs 5/20 20° 15° January 12 Wednesday 12 rain in 9 of 20 yrs 9/20 20° 15° January 13 Thursday 13 rain in 6 of 20 yrs 6/20 19° 15° January 14 Friday 14 rain in 5 of 20 yrs 5/20 20° 15° January 15 Saturday 15 rain in 7 of 20 yrs 7/20 20° 15° 9-15 rain on 30% of days 20° 15°
January 16 Sunday 16 rain in 7 of 20 yrs 7/20 20° 15° January 17 Monday 17 rain in 6 of 20 yrs 6/20 20° 15° January 18 Tuesday 18 rain in 5 of 20 yrs 5/20 20° 15° January 19 Wednesday 19 rain in 6 of 20 yrs 6/20 20° 16° January 20 Thursday 20 rain in 4 of 20 yrs 4/20 21° 16° January 21 Friday 21 rain in 10 of 20 yrs 10/20 21° 16° January 22 Saturday 22 rain in 10 of 20 yrs 10/20 20° 15° 16-22 rain on 34% of days 20° 15°
January 23 Sunday 23 rain in 9 of 20 yrs 9/20 19° 14° January 24 Monday 24 rain in 6 of 20 yrs 6/20 19° 14° January 25 Tuesday 25 rain in 4 of 20 yrs 4/20 19° 14° January 26 Wednesday 26 rain in 7 of 20 yrs 7/20 19° 14° January 27 Thursday 27 rain in 7 of 20 yrs 7/20 20° 14° January 28 Friday 28 rain in 7 of 20 yrs 7/20 20° 15° January 29 Saturday 29 rain in 7 of 20 yrs 7/20 20° 15° 23-29 rain on 34% of days 19° 14°
January 30 Sunday 30 rain in 7 of 20 yrs 7/20 20° 15° January 31 Monday 31 rain in 5 of 20 yrs 5/20 20° 15°
30-31 rain on 30% of days 20° 15°
January 1 rain on 10% of days 19° 14° 2-8 rain on 36% of days 20° 15° 9-15 rain on 30% of days 20° 15° 16-22 rain on 34% of days 20° 15° 23-29 rain on 34% of days 19° 14° 30-31 rain on 30% of days 20° 15°
Tap another date to change
2006 none
2007 none
2008 none
2009 4mm
2010 11mm
2011 none
2012 1mm
2013 17mm
2014 none
2015 none
2016 12mm
2017 18mm
2018 20mm
2019 none
2020 2mm
2021 2mm
2022 1mm
2023 none
2024 none
2025 none
Holidays in January (2027) December 29 to January 3 Year-end and New Year holidaysJanuary 1 New Year's DayJanuary 11 Coming of Age DayJanuary 18 Birthday of Martin Luther King, Jr. 1 Local public holiday or break (busier, pricier)1 US holidays (flights fill up)
Holidays in January (2028) December 29 to January 3 Year-end and New Year holidays 1 Local public holiday or break (busier, pricier)
Your trip dates, the past 20 years Trip dates January 1 (Fri) 2 (Sat) 3 (Sun) 4 (Mon) 5 (Tue) 6 (Wed) 7 (Thu) 8 (Fri) 9 (Sat) 10 (Sun) 11 (Mon) 12 (Tue) 13 (Wed) 14 (Thu) 15 (Fri) 16 (Sat) 17 (Sun) 18 (Mon) 19 (Tue) 20 (Wed) 21 (Thu) 22 (Fri) 23 (Sat) 24 (Sun) 25 (Mon) 26 (Tue) 27 (Wed) 28 (Thu) 29 (Fri) 30 (Sat) 31 (Sun) ~ January 1 (Fri) 2 (Sat) 3 (Sun) 4 (Mon) 5 (Tue) 6 (Wed) 7 (Thu) 8 (Fri) 9 (Sat) 10 (Sun) 11 (Mon) 12 (Tue) 13 (Wed) 14 (Thu) 15 (Fri) 16 (Sat) 17 (Sun) 18 (Mon) 19 (Tue) 20 (Wed) 21 (Thu) 22 (Fri) 23 (Sat) 24 (Sun) 25 (Mon) 26 (Tue) 27 (Wed) 28 (Thu) 29 (Fri) 30 (Sat) 31 (Sun) 1-7 8-14 15-21 22-end Whole month
You can also click two dates on the axis. Hover a cell to see that day's rain. By year Driest trips first
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Trip rain days Month rain days Tap a date to start, tap another to end. Each cell is that date in one year. '06 '07 '08 '09 '10 '11 '12 '13 '14 '15 '16 '17 '18 '19 '20 '21 '22 '23 '24 '25
of 20 21 Thu Pick January 21
10 22 Fri Pick January 22
10 Dates outside your trip are dimmed.
One row per year, one cell per day. 2024 had 4 rain days, 2016 had 19.
Naha through the year Month High Low Rain days Rainfall Sea January 20° 15° 10 days 99mm 23° February 20° 15° 10 days 108mm 22° March Good 22° 17° 10 days 126mm 22° April Good 25° 19° 10 days 176mm 23° May 27° 22° 12 days 288mm 25° June 30° 25° 13 days 317mm 27° July 32° 27° 10 days 214mm 29° August 32° 27° 13 days 268mm 29° September 31° 26° 13 days 232mm 29° October 28° 24° 10 days 197mm 28° November Good 25° 21° 10 days 157mm 26° December 22° 17° 10 days 133mm 24°
Common questions Does it rain a lot in Naha in January? Over the past 20 years January averaged 10 rain days (1 mm or more) out of 31. Individual years ran from 4 in the driest to 19 in the wettest.
What should I wear in Naha in January? Days averaged 20°C and nights 15°C. Pack a compact umbrella, a waterproof jacket, and a light layer for the evenings.
Can you swim in Naha in January? Sea surface temperature averaged 22.6°C in January, cool when you first get in. Year to year it ranged 22.1-23°C. Check local flags for waves and jellyfish on the day.
Is January a good time to visit Naha? On warmth and rain days alone, Naha's easiest months were March, April and November. January ranked 7 of 12.
How many clear days does Naha get in January? About 2 clear days (under 30% cloud on average) and 15 overcast days (80% or more).
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