Climate and Average Weather Year Round in Saiki JapanIn Saiki, the summers are warm, oppressive, and mostly cloudy; the winters are cold, windy, and mostly clear; and it is wet year round. Over the course of the year, the temperature typically varies from 38°F to 85°F and is rarely below 31°F or above 89°F. Based on the tourism score, the best time of year to visit Saiki for warm-weather activities is from early September to late October. Average Temperature in SaikiThe warm season lasts for 3.0 months, from June 23 to September 24, with an average daily high temperature above 78°F. The hottest month of the year in Saiki is August, with an average high of 85°F and low of 75°F. The cool season lasts for 3.3 months, from December 5 to March 15, with an average daily high temperature below 57°F. The coldest month of the year in Saiki is January, with an average low of 39°F and high of 51°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. Nags Head, United States (7,362 miles away) and Tonekābon, Iran (4,460 miles) are the far-away foreign places with temperatures most similar to Saiki (view comparison). CloudsIn Saiki, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year. The clearer part of the year in Saiki begins around September 15 and lasts for 6.3 months, ending around March 26. The clearest month of the year in Saiki is December, during which on average the sky is clear, mostly clear, or partly cloudy 80% of the time. The cloudier part of the year begins around March 26 and lasts for 5.7 months, ending around September 15. The cloudiest month of the year in Saiki is June, during which on average the sky is overcast or mostly cloudy 70% of the time.
PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Saiki varies significantly throughout the year. The wetter season lasts 5.2 months, from April 19 to September 26, with a greater than 36% chance of a given day being a wet day. The month with the most wet days in Saiki is June, with an average of 15.5 days with at least 0.04 inches of precipitation. The drier season lasts 6.8 months, from September 26 to April 19. The month with the fewest wet days in Saiki is January, with an average of 5.0 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 Saiki is June, with an average of 15.5 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 22.
RainfallTo 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. Saiki experiences extreme seasonal variation in monthly rainfall. Rain falls throughout the year in Saiki. The month with the most rain in Saiki is June, with an average rainfall of 11.8 inches. The month with the least rain in Saiki is December, with an average rainfall of 1.8 inches.
SunThe length of the day in Saiki varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 59 minutes of daylight; the longest day is June 21, with 14 hours, 20 minutes of daylight.
The earliest sunrise is at 5:03 AM on June 11, and the latest sunrise is 2 hours, 13 minutes later at 7:16 AM on January 10. The earliest sunset is at 5:05 PM on December 4, and the latest sunset is 2 hours, 20 minutes later at 7:24 PM on June 30. Daylight saving time (DST) is not observed in Saiki during 2024. 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. MoonThe 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. HumidityWe 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. Saiki experiences extreme seasonal variation in the perceived humidity. The muggier period of the year lasts for 4.3 months, from May 31 to October 7, during which time the comfort level is muggy, oppressive, or miserable at least 25% of the time. The month with the most muggy days in Saiki is August, with 30.3 days that are muggy or worse. The month with the fewest muggy days in Saiki is February, with 0.0 days that are muggy or worse.
WindThis 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 Saiki experiences significant seasonal variation over the course of the year. The windier part of the year lasts for 6.2 months, from October 14 to April 22, with average wind speeds of more than 7.7 miles per hour. The windiest month of the year in Saiki is January, with an average hourly wind speed of 10.0 miles per hour. The calmer time of year lasts for 5.8 months, from April 22 to October 14. The calmest month of the year in Saiki is July, with an average hourly wind speed of 5.5 miles per hour.
The predominant average hourly wind direction in Saiki varies throughout the year. The wind is most often from the south for 2.6 weeks, from April 28 to May 16 and for 3.4 months, from May 20 to September 2, with a peak percentage of 51% on July 12. The wind is most often from the north for 4.0 days, from May 16 to May 20 and for 7.9 months, from September 2 to April 28, with a peak percentage of 35% on May 16. Water TemperatureSaiki 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 2.7 months, from July 11 to October 1, with an average temperature above 76°F. The month of the year in Saiki with the warmest water is August, with an average temperature of 80°F. The time of year with cooler water lasts for 4.0 months, from December 28 to April 26, with an average temperature below 65°F. The month of the year in Saiki with the coolest water is February, with an average temperature of 61°F.
Best Time of Year to VisitTo characterize how pleasant the weather is in Saiki 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 Saiki for general outdoor tourist activities is from early September to late October, with a peak score in the first week of October. Tourism Score in SaikiThe 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 Saiki for hot-weather activities is from mid July to mid September, with a peak score in the second week of August. Beach/Pool Score in SaikiMethodologyFor 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. Growing SeasonDefinitions 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). The growing season in Saiki typically lasts for 10 months (316 days), from around February 16 to around December 28, rarely starting before January 17 or after March 9, and rarely ending before December 13 or after January 15. 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. Based on growing degree days alone, the first spring blooms in Saiki should appear around March 9, only rarely appearing before February 23 or after March 24. Solar EnergyThis 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 significant seasonal variation over the course of the year. The brighter period of the year lasts for 4.5 months, from April 10 to August 27, with an average daily incident shortwave energy per square meter above 5.5 kWh. The brightest month of the year in Saiki is May, with an average of 6.0 kWh. The darker period of the year lasts for 3.0 months, from November 6 to February 4, with an average daily incident shortwave energy per square meter below 3.6 kWh. The darkest month of the year in Saiki is December, with an average of 3.0 kWh.
TopographyFor the purposes of this report, the geographical coordinates of Saiki are 32.950 deg latitude, 131.900 deg longitude, and 10 ft elevation. The topography within 2 miles of Saiki contains very significant variations in elevation, with a maximum elevation change of 978 feet and an average elevation above sea level of 124 feet. Within 10 miles contains very significant variations in elevation (2,379 feet). Within 50 miles contains large variations in elevation (5,846 feet). The area within 2 miles of Saiki is covered by trees (42%), cropland (39%), and water (15%), within 10 miles by trees (56%) and water (37%), and within 50 miles by water (62%) and trees (33%). Data SourcesThis report illustrates the typical weather in Saiki, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Temperature and Dew PointThere are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Saiki. For each station, the records are corrected for the elevation difference between that station and Saiki 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 Saiki is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Saiki 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 Saiki 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 DataAll 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. DisclaimerThe 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. |