Climate and Average Weather Year Round in Comitancillo Guatemala

In Comitancillo, the wet season is overcast, the dry season is partly cloudy, and it is comfortable year round. Over the course of the year, the temperature typically varies from 40°F to 74°F and is rarely below 34°F or above 78°F.

Based on the tourism score, the best time of year to visit Comitancillo for warm-weather activities is from early February to late April.

The temperature in Comitancillo varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.

In Comitancillo, 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 Comitancillo begins around November 17 and lasts for 5.0 months, ending around April 16.

The clearest month of the year in Comitancillo is January, during which on average the sky is clear, mostly clear, or partly cloudy 74% of the time.

The cloudier part of the year begins around April 16 and lasts for 7.0 months, ending around November 17.

The cloudiest month of the year in Comitancillo is June, during which on average the sky is overcast or mostly cloudy 95% of the time.

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

The wetter season lasts 5.7 months, from May 9 to October 30, with a greater than 40% chance of a given day being a wet day. The month with the most wet days in Comitancillo is September, with an average of 22.6 days with at least 0.04 inches of precipitation.

The drier season lasts 6.3 months, from October 30 to May 9. The month with the fewest wet days in Comitancillo is January, with an average of 0.9 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 Comitancillo is September, with an average of 22.6 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 77% on September 10.

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. Comitancillo experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.1 months, from March 7 to December 9, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Comitancillo is September, with an average rainfall of 10.3 inches.

The rainless period of the year lasts for 2.9 months, from December 9 to March 7. The month with the least rain in Comitancillo is January, with an average rainfall of 0.2 inches.

The length of the day in Comitancillo varies over the course of the year. In 2024, the shortest day is December 21, with 11 hours, 14 minutes of daylight; the longest day is June 20, with 13 hours, 1 minute of daylight.

The earliest sunrise is at 5:35 AM on June 2, and the latest sunrise is 1 hour, 1 minute later at 6:36 AM on January 22. The earliest sunset is at 5:34 PM on November 21, and the latest sunset is 1 hour, 7 minutes later at 6:41 PM on July 6.

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

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.

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.

The perceived humidity level in Comitancillo, 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, remaining a virtually constant 0% throughout.

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 Comitancillo experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 5.3 months, from November 6 to April 17, with average wind speeds of more than 3.2 miles per hour. The windiest month of the year in Comitancillo is January, with an average hourly wind speed of 3.7 miles per hour.

The calmer time of year lasts for 6.7 months, from April 17 to November 6. The calmest month of the year in Comitancillo is September, with an average hourly wind speed of 2.7 miles per hour.

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

The wind is most often from the south for 2.0 months, from May 1 to July 1 and for 1.9 months, from August 17 to October 15, with a peak percentage of 48% on June 15. The wind is most often from the east for 1.5 months, from July 1 to August 17 and for 5.5 months, from November 15 to May 1, with a peak percentage of 50% on July 21. The wind is most often from the north for 1.0 months, from October 15 to November 15, with a peak percentage of 37% on November 11.

To characterize how pleasant the weather is in Comitancillo 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 Comitancillo for general outdoor tourist activities is from early February to late April, with a peak score in the third week of March.

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 Comitancillo for hot-weather activities is from mid March to mid April, with a peak score in the last week of March.

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).

The growing season in Comitancillo typically lasts for 11 months (331 days), from around February 1 to around December 28, rarely starting after March 18, or ending before November 29.

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 Comitancillo should appear around January 16, only rarely appearing before January 14 or after January 18.

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 2.0 months, from February 12 to April 12, with an average daily incident shortwave energy per square meter above 6.2 kWh. The brightest month of the year in Comitancillo is March, with an average of 6.7 kWh.

The darker period of the year lasts for 2.0 months, from August 22 to October 22, with an average daily incident shortwave energy per square meter below 4.7 kWh. The darkest month of the year in Comitancillo is September, with an average of 4.2 kWh.

For the purposes of this report, the geographical coordinates of Comitancillo are 15.089 deg latitude, -91.750 deg longitude, and 7,451 ft elevation.

The topography within 2 miles of Comitancillo contains large variations in elevation, with a maximum elevation change of 2,392 feet and an average elevation above sea level of 7,709 feet. Within 10 miles contains large variations in elevation (6,644 feet). Within 50 miles also contains extreme variations in elevation (13,825 feet).

The area within 2 miles of Comitancillo is covered by grassland (60%), cropland (23%), and trees (17%), within 10 miles by grassland (61%) and trees (26%), and within 50 miles by trees (42%) and grassland (33%).