Climate and Average Weather Year Round in Coasa Peru

The climate in Coasa is cold and overcast. Over the course of the year, the temperature typically varies from 25°F to 49°F and is rarely below 22°F or above 55°F.

Based on the tourism score, the best time of year to visit Coasa for warm-weather activities is for the entire month of November.

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

In Coasa, 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 Coasa begins around May 11 and lasts for 4.2 months, ending around September 16.

The clearest month of the year in Coasa is July, during which on average the sky is clear, mostly clear, or partly cloudy 53% of the time.

The cloudier part of the year begins around September 16 and lasts for 7.8 months, ending around May 11.

The cloudiest month of the year in Coasa is January, during which on average the sky is overcast or mostly cloudy 93% 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 Coasa varies very significantly throughout the year.

The wetter season lasts 4.5 months, from November 19 to April 2, with a greater than 35% chance of a given day being a wet day. The month with the most wet days in Coasa is January, with an average of 18.5 days with at least 0.04 inches of precipitation.

The drier season lasts 7.5 months, from April 2 to November 19. The month with the fewest wet days in Coasa is July, with an average of 2.7 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. Based on this categorization, the most common form of precipitation in Coasa changes throughout the year.

Rain alone is the most common for 11 months, from August 21 to August 4. The month with the most days of rain alone in Coasa is February, with an average of 14.8 days.

Mixed snow and rain is the most common for 2.4 weeks, from August 4 to August 21. The month with the most days of mixed snow and rain in Coasa is January, with an average of 2.9 days.

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. Coasa experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 10 months, from September 2 to July 18, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Coasa is January, with an average rainfall of 5.6 inches.

The rainless period of the year lasts for 1.5 months, from July 18 to September 2. The month with the least rain in Coasa is August, with an average rainfall of 0.4 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Coasa experiences some seasonal variation in monthly snowfall.

Snow falls throughout the year in Coasa. The month with the most snow in Coasa is October, with an average snowfall of 3.8 inches.

The least snow falls around December 2, with an average total accumulation of 1.4 inches.

The length of the day in Coasa varies over the course of the year. In 2024, the shortest day is June 20, with 11 hours, 18 minutes of daylight; the longest day is December 21, with 12 hours, 57 minutes of daylight.

The earliest sunrise is at 5:01 AM on November 21, and the latest sunrise is 1 hour, 4 minutes later at 6:04 AM on July 10. The earliest sunset is at 5:18 PM on May 30, and the latest sunset is 57 minutes later at 6:15 PM on January 22.

Daylight saving time (DST) is not observed in Coasa 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 Coasa, 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 Coasa experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 8.0 months, from July 28 to March 27, with average wind speeds of more than 7.4 miles per hour. The windiest month of the year in Coasa is October, with an average hourly wind speed of 8.3 miles per hour.

The calmer time of year lasts for 4.0 months, from March 27 to July 28. The calmest month of the year in Coasa is May, with an average hourly wind speed of 6.5 miles per hour.

The predominant average hourly wind direction in Coasa is from the north throughout the year.

To characterize how pleasant the weather is in Coasa 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 Coasa for general outdoor tourist activities is for the entire month of November, with a peak score in the third week of November.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F.

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).

Temperatures in Coasa are sufficiently cold 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.

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.

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.

For the purposes of this report, the geographical coordinates of Coasa are -14.000 deg latitude, -69.967 deg longitude, and 14,534 ft elevation.

The topography within 2 miles of Coasa contains large variations in elevation, with a maximum elevation change of 2,146 feet and an average elevation above sea level of 14,308 feet. Within 10 miles contains large variations in elevation (8,927 feet). Within 50 miles also contains extreme variations in elevation (18,222 feet).

The area within 2 miles of Coasa is covered by grassland (81%) and shrubs (15%), within 10 miles by grassland (45%) and shrubs (41%), and within 50 miles by trees (40%) and shrubs (27%).