Average Weather in Ponce Puerto Rico
The climate in Ponce is hot, oppressive, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 68°F to 91°F and is rarely below 65°F or above 93°F.
Based on the beach/pool score, the best time of year to visit Ponce for hot-weather activities is from early December to late April.
The temperature in Ponce varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.
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 Ponce, 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 Ponce begins around November 18 and lasts for 5.4 months, ending around April 29. On January 11, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 80% of the time, and overcast or mostly cloudy 20% of the time.
The cloudier part of the year begins around April 29 and lasts for 6.6 months, ending around November 18. On May 29, the cloudiest day of the year, the sky is overcast or mostly cloudy 74% of the time, and clear, mostly clear, or partly cloudy 26% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Ponce varies throughout the year.
The wetter season lasts 7.4 months, from April 22 to December 2, with a greater than 24% chance of a given day being a wet day. The chance of a wet day peaks at 35% on November 1.
The drier season lasts 4.7 months, from December 2 to April 22. The smallest chance of a wet day is 13% on March 9.
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 November 1.
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. Ponce experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Ponce. The most rain falls during the 31 days centered around November 4, with an average total accumulation of 3.4 inches.
The least rain falls around February 28, with an average total accumulation of 0.9 inches.
Average Monthly Rainfall
The length of the day in Ponce varies over the course of the year. In 2021, the shortest day is December 21, with 11 hours, 3 minutes of daylight; the longest day is June 20, with 13 hours, 13 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:50 AM on June 4, and the latest sunrise is 1 hour, 11 minutes later at 7:01 AM on January 18. The earliest sunset is at 5:48 PM on November 23, and the latest sunset is 1 hour, 17 minutes later at 7:06 PM on July 6.
Daylight saving time (DST) is not observed in Ponce during 2021.
Sunrise & Sunset with Twilight
The figure below presents a compact representation of key lunar data for 2021. 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
Ponce experiences significant seasonal variation in the perceived humidity.
The muggier period of the year lasts for 10.0 months, from March 23 to January 21, during which time the comfort level is muggy, oppressive, or miserable at least 71% of the time. The muggiest day of the year is August 25, with muggy conditions 99% of the time.
The least muggy day of the year is February 28, with muggy conditions 62% of the time.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Ponce experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 3.0 months, from May 30 to August 28, with average wind speeds of more than 10.7 miles per hour. The windiest day of the year is July 13, with an average hourly wind speed of 12.4 miles per hour.
The calmer time of year lasts for 9.0 months, from August 28 to May 30. The calmest day of the year is October 10, with an average hourly wind speed of 9.0 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Ponce is from the east throughout the year.
Ponce 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 August 1 to November 13, with an average temperature above 83°F. The day of the year with the warmest water is September 26, with an average temperature of 84°F.
The time of year with cooler water lasts for 3.1 months, from January 8 to April 12, with an average temperature below 80°F. The day of the year with the coolest water is February 25, with an average temperature of 79°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Ponce 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 Ponce for general outdoor tourist activities is from late December to late March, with a peak score in the last week of February.
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 Ponce for hot-weather activities is from early December to late April, with a peak score in the third week of March.
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.
Temperatures in Ponce 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
Growing Degree Days
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 1.9 months, from March 6 to May 3, with an average daily incident shortwave energy per square meter above 6.6 kWh. The brightest day of the year is April 3, with an average of 7.1 kWh.
The darker period of the year lasts for 3.8 months, from September 12 to January 6, with an average daily incident shortwave energy per square meter below 5.1 kWh. The darkest day of the year is October 23, with an average of 4.6 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Ponce are 18.011 deg latitude, -66.614 deg longitude, and 69 ft elevation.
The topography within 2 miles of Ponce contains significant variations in elevation, with a maximum elevation change of 577 feet and an average elevation above sea level of 103 feet. Within 10 miles contains significant variations in elevation (3,442 feet). Within 50 miles also contains extreme variations in elevation (4,442 feet).
The area within 2 miles of Ponce is covered by grassland (57%), trees (19%), and shrubs (12%), within 10 miles by water (42%) and trees (32%), and within 50 miles by water (68%) and trees (17%).
This report illustrates the typical weather in Ponce, 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 Ponce.
For each station, the records are corrected for the elevation difference between that station and Ponce 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 Ponce is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Ponce and a given station.
Time zones for airports and weather stations are provided by AskGeo.com .