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Climate and Average Weather Year Round in Naha Japan

In Naha, the summers are hot, oppressive, wet, and overcast; the winters are cool and partly cloudy; and it is windy year round. Over the course of the year, the temperature typically varies from 59°F to 88°F and is rarely below 54°F or above 91°F.

Based on the tourism score, the best time of year to visit Naha for warm-weather activities is from mid October to late December.

Climate in Naha

comfortablewarmhotwarmJanFebMarAprMayJunJulAugSepOctNovDecNowNow68%68%19%19%clearprecipitation: 10.1 inprecipitation: 10.1 in1.7 in1.7 inmuggy: 100%muggy: 100%3%3%drydrytourism score: 7.5tourism score: 7.52.32.3
Naha weather by month. Click on each chart for more information.

The hot season lasts for 3.7 months, from June 12 to October 2, with an average daily high temperature above 84°F. The hottest month of the year in Naha is July, with an average high of 88°F and low of 81°F.

The cool season lasts for 3.1 months, from December 12 to March 16, with an average daily high temperature below 70°F. The coldest month of the year in Naha is January, with an average low of 60°F and high of 67°F.

Average High and Low Temperature in Naha

Average High and Low Temperature in NahahotcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2766°FJan 2766°FJul 2088°FJul 2088°F59°F59°F81°F81°FJun 1284°FJun 1284°FOct 284°FOct 284°FDec 1270°FDec 1270°FMar 1670°FMar 1670°F77°F77°F77°F77°F64°F64°F63°F63°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 67°F67°F71°F75°F80°F85°F88°F88°F86°F82°F76°F70°F
Temp. 63°F63°F66°F71°F76°F81°F84°F84°F82°F78°F72°F66°F
Low 60°F60°F63°F68°F73°F78°F81°F81°F79°F74°F69°F63°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in Naha

Average Hourly Temperature in NahaJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowcoolcoolcomfortablecomfortablewarmhotcoolcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Redington Shores, Florida, United States (8,197 miles away) is the far-away foreign place with temperatures most similar to Naha (view comparison).

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In Naha, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Naha begins around September 13 and lasts for 7.1 months, ending around April 17.

The clearest month of the year in Naha is December, during which on average the sky is clear, mostly clear, or partly cloudy 67% of the time.

The cloudier part of the year begins around April 17 and lasts for 4.9 months, ending around September 13.

The cloudiest month of the year in Naha is June, during which on average the sky is overcast or mostly cloudy 80% of the time.

Cloud Cover Categories in Naha

Cloud Cover Categories in NahaclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Dec 1668%Dec 1668%Jun 1519%Jun 1519%Sep 1343%Sep 1343%Apr 1743%Apr 1743%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 37%40%42%56%69%80%74%67%55%38%36%33%
Clearer 63%60%58%44%31%20%26%33%45%62%64%67%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Naha varies significantly throughout the year.

The wetter season lasts 3.2 months, from March 19 to June 25, with a greater than 40% chance of a given day being a wet day. The month with the most wet days in Naha is May, with an average of 15.6 days with at least 0.04 inches of precipitation.

The drier season lasts 8.8 months, from June 25 to March 19. The month with the fewest wet days in Naha is December, with an average of 7.4 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Naha is May, with an average of 15.6 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 58% on June 3.

Daily Chance of Precipitation in Naha

Daily Chance of Precipitation in NahawetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jun 358%Jun 358%Dec 1522%Dec 1522%Mar 1940%Mar 1940%Jun 2540%Jun 2540%NowNowrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 8.1d8.5d12.0d13.5d15.6d14.4d8.9d11.2d11.1d8.9d8.5d7.4d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Naha experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Naha. The month with the most rain in Naha is June, with an average rainfall of 8.9 inches.

The month with the least rain in Naha is January, with an average rainfall of 1.9 inches.

Average Monthly Rainfall in Naha

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 1.9″2.3″3.6″5.6″8.1″8.9″4.1″5.7″5.9″4.1″2.9″1.9″

The length of the day in Naha varies over the course of the year. In 2024, the shortest day is December 21, with 10 hours, 30 minutes of daylight; the longest day is June 21, with 13 hours, 47 minutes of daylight.

Hours of Daylight and Twilight in Naha

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 10.7h11.3h12.0h12.8h13.4h13.8h13.6h13.0h12.3h11.5h10.9h10.5h

The earliest sunrise is at 5:36 AM on June 10, and the latest sunrise is 1 hour, 42 minutes later at 7:18 AM on January 13. The earliest sunset is at 5:36 PM on November 30, and the latest sunset is 1 hour, 49 minutes later at 7:25 PM on July 1.

Daylight saving time (DST) is not observed in Naha during 2024.

Sunrise & Sunset with Twilight in Naha

Sunrise & Sunset with Twilight in NahaJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 105:36 AMJun 105:36 AM7:25 PMJul 17:25 PMJul 1Nov 305:36 PMNov 305:36 PM7:18 AMJan 137:18 AMJan 13daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in Naha

Solar Elevation and Azimuth in NahaJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM000010101010202020203030303040404040505050606070708000001010101020202020303030304040404050505060606070708040NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases in Naha

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Naha experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 7.8 months, from March 26 to November 20, during which time the comfort level is muggy, oppressive, or miserable at least 27% of the time. The month with the most muggy days in Naha is July, with 31.0 days that are muggy or worse.

The month with the fewest muggy days in Naha is January, with 1.0 days that are muggy or worse.

Humidity Comfort Levels in Naha

Humidity Comfort Levels in NahamuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jan 133%Jan 133%100%Jul 25100%Jul 25Mar 2627%Mar 2627%Nov 2027%Nov 2027%NowNowmiserablemiserabledrydrycomfortablecomfortablemuggymuggyhumidhumid
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 1.0d2.2d6.4d12.5d22.1d28.6d31.0d30.9d27.9d19.9d9.4d2.2d

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Naha experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.8 months, from September 26 to March 20, with average wind speeds of more than 14.5 miles per hour. The windiest month of the year in Naha is December, with an average hourly wind speed of 16.5 miles per hour.

The calmer time of year lasts for 6.2 months, from March 20 to September 26. The calmest month of the year in Naha is May, with an average hourly wind speed of 12.3 miles per hour.

Average Wind Speed in Naha

Average Wind Speed in NahawindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mph20 mph20 mphDec 116.9 mphDec 116.9 mphMay 2112.2 mphMay 2112.2 mphSep 2614.5 mphSep 2614.5 mphMar 2014.5 mphMar 2014.5 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 16.215.714.713.412.313.112.913.113.815.616.116.5

The predominant average hourly wind direction in Naha varies throughout the year.

The wind is most often from the east for 1.2 months, from April 14 to May 19 and for 2.1 months, from August 1 to October 4, with a peak percentage of 46% on September 27. The wind is most often from the south for 2.4 months, from May 19 to August 1, with a peak percentage of 69% on June 26. The wind is most often from the north for 6.3 months, from October 4 to April 14, with a peak percentage of 64% on January 1.

Wind Direction in Naha

Wind Direction in NahaNESENJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowsoutheastnorthwest
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Naha is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.4 months, from June 24 to October 4, with an average temperature above 81°F. The month of the year in Naha with the warmest water is August, with an average temperature of 84°F.

The time of year with cooler water lasts for 3.6 months, from December 31 to April 18, with an average temperature below 73°F. The month of the year in Naha with the coolest water is February, with an average temperature of 71°F.

Average Water Temperature in Naha

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 72°F71°F71°F73°F76°F80°F83°F84°F83°F80°F77°F75°F

To characterize how pleasant the weather is in Naha throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Naha for general outdoor tourist activities is from mid October to late December, with a peak score in the third week of November.

Tourism Score in Naha

Tourism Score in Nahabest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.57.52.32.36.66.66.06.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Naha for hot-weather activities is from mid September to late October, with a peak score in the second week of October.

Beach/Pool Score in Naha

Beach/Pool Score in Nahabest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.17.10.80.85.05.04.54.5NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures in Naha are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Time Spent in Various Temperature Bands and the Growing Season in Naha

Time Spent in Various Temperature Bands and the Growing Season in NahaJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%100%Jan 1100%Jan 1100%Jul 2100%Jul 2NowNowcoolcomfortablewarmhotcold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Growing Degree Days in Naha

Growing Degree Days in NahaJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°F6,000°F6,000°F7,000°F7,000°F8,000°F8,000°FJan 890°FJan 890°FMar 9900°FMar 9900°FApr 261,800°FApr 261,800°FDec 318,669°FDec 318,669°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year.

The brighter period of the year lasts for 3.4 months, from June 16 to September 27, with an average daily incident shortwave energy per square meter above 5.0 kWh. The brightest month of the year in Naha is July, with an average of 5.5 kWh.

The darker period of the year lasts for 2.4 months, from November 20 to February 2, with an average daily incident shortwave energy per square meter below 3.6 kWh. The darkest month of the year in Naha is December, with an average of 3.2 kWh.

Average Daily Incident Shortwave Solar Energy in Naha

Average Daily Incident Shortwave Solar Energy in NahabrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhJul 135.5 kWhJul 135.5 kWhDec 263.2 kWhDec 263.2 kWhSep 275.0 kWhSep 275.0 kWhFeb 23.6 kWhFeb 23.6 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 3.34.14.95.35.45.15.55.45.24.73.73.2

For the purposes of this report, the geographical coordinates of Naha are 26.217 deg latitude, 127.683 deg longitude, and 39 ft elevation.

The topography within 2 miles of Naha contains only modest variations in elevation, with a maximum elevation change of 338 feet and an average elevation above sea level of 56 feet. Within 10 miles contains only modest variations in elevation (646 feet). Within 50 miles contains significant variations in elevation (1,650 feet).

The area within 2 miles of Naha is covered by water (38%), grassland (24%), trees (14%), and cropland (12%), within 10 miles by water (77%) and cropland (14%), and within 50 miles by water (96%).

This report illustrates the typical weather in Naha, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Naha.

For each station, the records are corrected for the elevation difference between that station and Naha according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Naha is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Naha and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Naha and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.