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Average Weather in Tomigusuku Japan

In Tomigusuku, 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.

Temperature

The hot season lasts for 3.7 months, from June 13 to October 4, with an average daily high temperature above 84°F. The hottest day of the year is July 21, with an average high of 88°F and low of 81°F.

The cool season lasts for 3.1 months, from December 13 to March 17, with an average daily high temperature below 70°F. The coldest day of the year is January 27, with an average low of 59°F and high of 66°F.

Average High and Low Temperature

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.

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

Average Hourly Temperature in TomigusukuJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMhotcoolwarmcomfortable
The average hourly temperature, color coded into bands: 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 shaded overlays indicate night and civil twilight.

Clouds

In Tomigusuku, 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 Tomigusuku begins around September 14 and lasts for 7.1 months, ending around April 18. On December 17, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 67% of the time, and overcast or mostly cloudy 33% of the time.

The cloudier part of the year begins around April 18 and lasts for 4.9 months, ending around September 14. On June 16, the cloudiest day of the year, the sky is overcast or mostly cloudy 81% of the time, and clear, mostly clear, or partly cloudy 19% of the time.

Cloud Cover Categories

Cloud Cover Categories in TomigusukuclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Dec 1767%Dec 1767%Jun 1619%Jun 1619%Sep 1443%Sep 1443%Apr 1843%Apr 1843%mostly cloudyclearovercastmostly clearpartly cloudy
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

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

The wetter season lasts 3.1 months, from March 22 to June 26, with a greater than 40% chance of a given day being a wet day. The chance of a wet day peaks at 58% on June 4.

The drier season lasts 8.9 months, from June 26 to March 22. The smallest chance of a wet day is 22% on December 16.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 58% on June 4.

Daily Chance of Precipitation

Daily Chance of Precipitation in TomigusukuwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jun 458%Jun 458%Dec 1622%Dec 1622%Mar 2240%Mar 2240%Jun 2640%Jun 2640%rain
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).

Rainfall

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. Tomigusuku experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Tomigusuku. The most rain falls during the 31 days centered around June 3, with an average total accumulation of 10.1 inches.

The least rain falls around December 28, with an average total accumulation of 1.7 inches.

Average Monthly Rainfall

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 liquid-equivalent snowfall.

Sun

The length of the day in Tomigusuku varies over the course of the year. In 2017, the shortest day is December 22, 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

Hours of Daylight and Twilight in TomigusukuJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2012 hr, 7 minMar 2013 hr, 47 minJun 2113 hr, 47 minJun 2112 hr, 8 minSep 2312 hr, 8 minSep 2310 hr, 30 minDec 2210 hr, 30 minDec 22nightnightday
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.

The earliest sunrise is at 5:36 AM on June 9, 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 2.

Daylight saving time (DST) is not observed in Tomigusuku during 2017.

Sunrise & Sunset with Twilight

Sunrise & Sunset with Twilight in TomigusukuJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 95:36 AMJun 95:36 AM7:25 PMJul 27:25 PMJul 2Nov 305:36 PMNov 305:36 PM7:18 AMJan 137:18 AMJan 13daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2017. 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.

Humidity

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.

Tomigusuku experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 7.8 months, from March 27 to November 21, during which time the comfort level is muggy, oppressive, or miserable at least 27% of the time. The muggiest day of the year is July 26, with muggy conditions 100% of the time.

The least muggy day of the year is January 13, with muggy conditions 3% of the time.

Humidity Comfort Levels

Humidity Comfort Levels in TomigusukumuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jan 133%Jan 133%100%Jul 26100%Jul 26Mar 2727%Mar 2727%Nov 2127%Nov 2127%drydrymiserablemiserablecomfortablecomfortablehumidhumid
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

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 Tomigusuku experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.8 months, from September 27 to March 21, with average wind speeds of more than 14.6 miles per hour. The windiest day of the year is December 2, with an average hourly wind speed of 16.9 miles per hour.

The calmer time of year lasts for 6.2 months, from March 21 to September 27. The calmest day of the year is May 22, with an average hourly wind speed of 12.2 miles per hour.

Average Wind Speed

Average Wind Speed in TomigusukuwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph2 mph4 mph6 mph8 mph10 mph12 mph14 mph16 mph18 mph20 mph22 mph24 mphDec 216.9 mphDec 216.9 mphMay 2212.2 mphMay 2212.2 mphSep 2714.6 mphSep 2714.6 mphMar 2114.6 mphMar 2114.6 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Tomigusuku 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 2 to October 6, with a peak percentage of 46% on September 27. The wind is most often from the south for 2.5 months, from May 19 to August 2, with a peak percentage of 69% on June 27. The wind is most often from the north for 6.3 months, from October 6 to April 14, with a peak percentage of 64% on January 1.

Wind Direction

Wind Direction in TomigusukuNESENJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%southeastnorthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Tomigusuku 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 25 to October 5, with an average temperature above 81°F. The day of the year with the warmest water is July 30, with an average temperature of 84°F.

The time of year with cooler water lasts for 3.6 months, from January 1 to April 19, with an average temperature below 73°F. The day of the year with the coolest water is February 24, with an average temperature of 71°F.

Average Water Temperature

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 17 to September 29, with an average daily incident shortwave energy per square meter above 5.0 kWh. The brightest day of the year is July 14, with an average of 5.5 kWh.

The darker period of the year lasts for 2.3 months, from November 21 to February 2, with an average daily incident shortwave energy per square meter below 3.6 kWh. The darkest day of the year is December 27, with an average of 3.2 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in TomigusukubrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWhJul 145.5 kWhJul 145.5 kWhDec 273.2 kWhDec 273.2 kWhSep 295.0 kWhSep 295.0 kWhFeb 23.6 kWhFeb 23.6 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Tomigusuku are 26.186 deg latitude, 127.682 deg longitude, and 59 ft elevation.

The topography within 2 miles of Tomigusuku contains only modest variations in elevation, with a maximum elevation change of 325 feet and an average elevation above sea level of 88 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 Tomigusuku is covered by cropland (62%) and trees (15%), within 10 miles by water (79%) and cropland (13%), and within 50 miles by water (96%).

Data Sources

This report illustrates the typical weather in Tomigusuku, 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 Tomigusuku.

For each station, the records are corrected for the elevation difference between that station and Tomigusuku 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 Tomigusuku is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Tomigusuku and a given station.

The stations contributing to this reconstruction are: Naha Airport (85%, 3.8 kilometers, west) and Marine Corps Air Station Futenma (15%, 11 kilometers, northeast).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

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.