Climate and Average Weather Year Round in Āsasa Ethiopia

In Āsasa, the summers are short and warm; the winters are long, cool, and wet; and it is mostly cloudy year round. Over the course of the year, the temperature typically varies from 45°F to 77°F and is rarely below 40°F or above 82°F.

Based on the tourism score, the best times of year to visit Āsasa for warm-weather activities are from mid May to late June and from late October to late March.

The warm season lasts for 1.9 months, from February 3 to March 31, with an average daily high temperature above 75°F. The hottest month of the year in Āsasa is March, with an average high of 76°F and low of 50°F.

The cool season lasts for 4.5 months, from June 26 to November 10, with an average daily high temperature below 70°F. The coldest month of the year in Āsasa is December, with an average low of 45°F and high of 71°F.

In Āsasa, 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 Āsasa begins around August 29 and lasts for 6.6 months, ending around March 17.

The clearest month of the year in Āsasa is December, during which on average the sky is clear, mostly clear, or partly cloudy 48% of the time.

The cloudier part of the year begins around March 17 and lasts for 5.4 months, ending around August 29.

The cloudiest month of the year in Āsasa is July, during which on average the sky is overcast or mostly cloudy 76% 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 Āsasa varies very significantly throughout the year.

The wetter season lasts 7.1 months, from March 21 to October 23, with a greater than 37% chance of a given day being a wet day. The month with the most wet days in Āsasa is August, with an average of 19.7 days with at least 0.04 inches of precipitation.

The drier season lasts 4.9 months, from October 23 to March 21. The month with the fewest wet days in Āsasa is December, with an average of 3.5 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 Āsasa is August, with an average of 19.7 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 65% on August 14.

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. Āsasa experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Āsasa. The month with the most rain in Āsasa is April, with an average rainfall of 7.1 inches.

The month with the least rain in Āsasa is December, with an average rainfall of 0.8 inches.

The length of the day in Āsasa does not vary substantially over the course of the year, staying within 32 minutes of 12 hours throughout. In 2024, the shortest day is December 21, with 11 hours, 43 minutes of daylight; the longest day is June 20, with 12 hours, 32 minutes of daylight.

The earliest sunrise is at 6:05 AM on May 25, and the latest sunrise is 36 minutes later at 6:42 AM on January 31. The earliest sunset is at 6:01 PM on November 13, and the latest sunset is 42 minutes later at 6:44 PM on July 15.

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

The windier part of the year lasts for 6.4 months, from October 16 to April 28, with average wind speeds of more than 5.5 miles per hour. The windiest month of the year in Āsasa is March, with an average hourly wind speed of 6.7 miles per hour.

The calmer time of year lasts for 5.6 months, from April 28 to October 16. The calmest month of the year in Āsasa is June, with an average hourly wind speed of 4.2 miles per hour.

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

The wind is most often from the south for 3.5 months, from June 5 to September 20, with a peak percentage of 61% on August 27. The wind is most often from the east for 8.5 months, from September 20 to June 5, with a peak percentage of 90% on January 1.

To characterize how pleasant the weather is in Āsasa 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 Āsasa for general outdoor tourist activities are from mid May to late June and from late October to late March, with a peak score in the third 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 Āsasa for hot-weather activities is from late January to mid March, with a peak score in the third week of February.

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 Āsasa 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.

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.

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 2.1 months, from January 22 to March 26, with an average daily incident shortwave energy per square meter above 7.0 kWh. The brightest month of the year in Āsasa is February, with an average of 7.3 kWh.

The darker period of the year lasts for 2.0 months, from June 21 to August 21, with an average daily incident shortwave energy per square meter below 5.6 kWh. The darkest month of the year in Āsasa is July, with an average of 5.2 kWh.

For the purposes of this report, the geographical coordinates of Āsasa are 7.100 deg latitude, 39.200 deg longitude, and 7,772 ft elevation.

The topography within 2 miles of Āsasa contains only modest variations in elevation, with a maximum elevation change of 262 feet and an average elevation above sea level of 7,775 feet. Within 10 miles contains only modest variations in elevation (1,532 feet). Within 50 miles contains very significant variations in elevation (10,269 feet).

The area within 2 miles of Āsasa is covered by cropland (100%), within 10 miles by cropland (100%), and within 50 miles by cropland (66%) and grassland (15%).