yearsofweather

Naha in May:
hot, frequent rain

Naha, Japan · Records from 2006 to 2025. Not a forecast.

Mean high27°Hottest day 30.5° (2016)
Mean low22°Coldest night 17.5° (2013)
Rain days12 days4-22 by year
Rainfall288mmDaylight 13.1 → 13.7 h
Naha's 12 months iBest: March, April and November
Trip types Beach Finecool seaSightseeing on foot Finemuggy
Humidity83%20 muggy days
Clear days3 days15 overcast days
Mean wind21 km/h4 windy days
Sea temperature25°24.6-25.6° by year (last 6)
Sunrise / sunset (15th)05:43 / 19:08Daylight 13.1 → 13.7 h

Naha in May

The rainy season starts in early May and wet days become frequent. The Naha Hari dragon boat races are held at Naha Port from May 3 to 5 during Golden Week. Rooms fill months ahead, so book early if you want this window.

Highs averaged 27°C and lows stayed at 22°C, so the heat hung on long after sunset. The gap between day and night was just 5°C, so it felt much the same around the clock. About 12 days a month saw rain, enough that a wet-weather plan was worth having. Year to year it swung widely, from 4 rain days in 2018 to 22 in 2022.

Rain days averaged 24 mm each, so when it rained it rained properly.

Typhoons i

2 of the last 20 years had a tropical storm pass within 300 km this month.

  • Aere (2011), 43 km away tropical storm
  • Songda (2011), 100 km away typhoon strength
  • Noul (2015), 102 km away typhoon strength
1 2 3 4 25 66 87 138 139 910 11 12

Date by date i

‹ April May 2027 June ›
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
May 1rain on 55% of days26° 21°
2-8rain on 29% of days26° 21°
9-15rain on 36% of days27° 22°
16-22rain on 41% of days27° 23°
23-29rain on 44% of days28° 23°
30-31rain on 45% of days28° 23°

0-5/206-8/209-11/2012-20/20

May 1rain on 55% of days26° 21°
2-8rain on 29% of days26° 21°
9-15rain on 36% of days27° 22°
16-22rain on 41% of days27° 23°
23-29rain on 44% of days28° 23°
30-31rain on 45% of days28° 23°
Tap another date to change

200622mm
2007none
2008none
2009none
20102mm
201130mm
201214mm
2013none
201433mm
201533mm
2016none
201711mm
2018none
201914mm
2020none
20212mm
202247mm
2023none
202428mm
20253mm
Holidays in May (2027)
  • April 29 to May 5 Golden Week
  • May 3 Constitution Memorial Day
  • May 4 Greenery Day
  • May 5 Children's Day
  • May 31 Memorial Day

1 Local public holiday or break (busier, pricier)1 US holidays (flights fill up)

Day by day temperature i

20°24°28°32° 1815222931

Mean high Mean low Coldest to warmest high in 20 years

Your trip dates, the past 20 years

Trip dates ~

You can also click two dates on the axis. Hover a cell to see that day's rain.
Trip rain days Month rain days
2006
3 d 14 d
2007
2 d 8 d
2008
2 d 10 d
2009
0 d 6 d
2010
2 d 13 d
2011
4 d 20 d
2012
1 d 13 d
2013
0 d 12 d
2014
4 d 19 d
2015
2 d 11 d
2016
1 d 11 d
2017
2 d 10 d
2018
2 d 4 d
2019
0 d 8 d
2020
3 d 13 d
2021
1 d 10 d
2022
5 d 22 d
2023
1 d 6 d
2024
2 d 16 d
2025
3 d 12 d
Years with rain
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
11
5
4
3
7
9
8
4
5
8
7
8
7
7
8
9
9
6
10
7
8
9
11
9
7
6
10
12
6
6
12
Rain days on trip
32202410421220315123

No rain1-9 mm10 mm or more Dates outside your trip are dimmed.

One row per year, one cell per day. 2018 had 4 rain days, 2022 had 22.

Naha through the year

MonthHighLowRain daysRainfallSea
January 20°15°10 days99mm 23°
February 20°15°10 days108mm 22°
MarchGood 22°17°10 days126mm 22°
AprilGood 25°19°10 days176mm 23°
May 27°22°12 days288mm 25°
June 30°25°13 days317mm 27°
July 32°27°10 days214mm 29°
August 32°27°13 days268mm 29°
September 31°26°13 days232mm 29°
October 28°24°10 days197mm 28°
NovemberGood 25°21°10 days157mm 26°
December 22°17°10 days133mm 24°

Common questions

Does it rain a lot in Naha in May?

Over the past 20 years May averaged 12 rain days (1 mm or more) out of 31. Individual years ran from 4 in the driest to 22 in the wettest.

What should I wear in Naha in May?

Days averaged 27°C and nights 22°C. Pack a compact umbrella, T-shirts, sunscreen plus a hat, a swimsuit, and insect repellent.

Can you swim in Naha in May?

Sea surface temperature averaged 25°C in May, comfortable for swimming. Year to year it ranged 24.6-25.6°C. Check local flags for waves and jellyfish on the day.

Is May a good time to visit Naha?

On warmth and rain days alone, Naha's easiest months were March, April and November. May ranked 8 of 12.

Is Naha humid in May?

Mean relative humidity was 83%, with about 20 muggy days (dew point of 20°C or more) in the month.