Average Weather in Náfpaktos Greece
In Náfpaktos, the summers are hot, dry, and clear and the winters are long, cold, wet, and partly cloudy. Over the course of the year, the temperature typically varies from 39°F to 94°F and is rarely below 31°F or above 100°F.
Based on the beach/pool score, the best time of year to visit Náfpaktos for hot-weather activities is from mid June to mid September.
The hot season lasts for 3.0 months, from June 12 to September 11, with an average daily high temperature above 86°F. The hottest day of the year is July 27, with an average high of 94°F and low of 69°F.
The cool season lasts for 4.1 months, from November 22 to March 25, with an average daily high temperature below 62°F. The coldest day of the year is January 22, with an average low of 39°F and high of 54°F.
Average High and Low Temperature
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 Náfpaktos, 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 Náfpaktos begins around May 28 and lasts for 3.8 months, ending around September 23. On July 20, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 96% of the time, and overcast or mostly cloudy 4% of the time.
The cloudier part of the year begins around September 23 and lasts for 8.2 months, ending around May 28. On December 12, the cloudiest day of the year, the sky is overcast or mostly cloudy 51% of the time, and clear, mostly clear, or partly cloudy 49% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Náfpaktos varies significantly throughout the year.
The wetter season lasts 6.3 months, from October 6 to April 15, with a greater than 19% chance of a given day being a wet day. The chance of a wet day peaks at 36% on December 7.
The drier season lasts 5.7 months, from April 15 to October 6. The smallest chance of a wet day is 3% on July 10.
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 35% on December 7.
Daily Chance of Precipitation
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. Náfpaktos experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 9.7 months, from August 19 to June 9, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around November 27, with an average total accumulation of 4.1 inches.
The rainless period of the year lasts for 2.3 months, from June 9 to August 19. The least rain falls around July 11, with an average total accumulation of 0.2 inches.
Average Monthly Rainfall
The length of the day in Náfpaktos varies significantly over the course of the year. In 2018, the shortest day is December 22, with 9 hours, 29 minutes of daylight; the longest day is June 21, with 14 hours, 51 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:08 AM on June 14, and the latest sunrise is 1 hour, 45 minutes later at 7:53 AM on October 27. The earliest sunset is at 5:11 PM on December 7, and the latest sunset is 3 hours, 49 minutes later at 9:00 PM on June 28.
Daylight saving time (DST) is observed in Náfpaktos during 2018, starting in the spring on March 25, lasting 7.1 months, and ending in the fall on October 28.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level in Náfpaktos, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 4% of 4% throughout.
Humidity Comfort Levels
The average hourly wind speed in Náfpaktos experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 5.1 months, from November 7 to April 9, with average wind speeds of more than 7.5 miles per hour. The windiest day of the year is February 24, with an average hourly wind speed of 8.7 miles per hour.
The calmer time of year lasts for 6.9 months, from April 9 to November 7. The calmest day of the year is September 2, with an average hourly wind speed of 6.3 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Náfpaktos varies throughout the year.
The wind is most often from the west for 7.1 months, from March 4 to October 7, with a peak percentage of 60% on June 13. The wind is most often from the east for 4.9 months, from October 7 to March 4, with a peak percentage of 41% on January 1.
Náfpaktos 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 significant seasonal variation over the course of the year.
The time of year with warmer water lasts for 3.2 months, from June 29 to October 4, with an average temperature above 74°F. The day of the year with the warmest water is August 14, with an average temperature of 78°F.
The time of year with cooler water lasts for 4.1 months, from December 24 to April 27, with an average temperature below 61°F. The day of the year with the coolest water is March 1, with an average temperature of 57°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Náfpaktos 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 times of year to visit Náfpaktos for general outdoor tourist activities are from early May to late June and from early September to mid October, with a peak score in the last week of May.
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 Náfpaktos for hot-weather activities is from mid June to mid September, with a peak score in the second week of July.
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.
The growing season in Náfpaktos typically lasts for 9.7 months (293 days), from around February 24 to around December 14, rarely starting before January 21 or after March 24, and rarely ending before November 19 or after January 10.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Náfpaktos should appear around February 20, only rarely appearing before February 3 or after March 14.
Growing Degree Days
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.3 months, from May 10 to August 21, with an average daily incident shortwave energy per square meter above 6.7 kWh. The brightest day of the year is June 30, with an average of 7.9 kWh.
The darker period of the year lasts for 3.5 months, from November 1 to February 15, with an average daily incident shortwave energy per square meter below 3.2 kWh. The darkest day of the year is December 21, with an average of 2.0 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Náfpaktos are 38.392 deg latitude, 21.827 deg longitude, and 49 ft elevation.
The topography within 2 miles of Náfpaktos contains large variations in elevation, with a maximum elevation change of 2,113 feet and an average elevation above sea level of 264 feet. Within 10 miles contains large variations in elevation (4,921 feet). Within 50 miles also contains extreme variations in elevation (8,281 feet).
The area within 2 miles of Náfpaktos is covered by water (37%), cropland (19%), trees (12%), and shrubs (11%), within 10 miles by trees (31%) and water (29%), and within 50 miles by trees (29%) and water (25%).
This report illustrates the typical weather in Náfpaktos, 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Náfpaktos.
For each station, the records are corrected for the elevation difference between that station and Náfpaktos 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 Náfpaktos is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Náfpaktos and a given station.
The stations contributing to this reconstruction are: Araxos Airport (55%, 44 kilometers, southwest); Tripoli Airport (11%, 108 kilometers, southeast); Aktion Airport (14%, 110 kilometers, northwest); Nea Anchialos National Airport (12%, 125 kilometers, northeast); and Tanagra Airport (9%, 152 kilometers, east).
Time zones for aiports and weather stations are provided by AskGeo.com .