Climate and Average Weather Year Round in Mīzan Teferī Ethiopia

In Mīzan Teferī, the summers are warm; the winters are short, comfortable, and wet; and it is mostly cloudy year round. Over the course of the year, the temperature typically varies from 54°F to 84°F and is rarely below 49°F or above 90°F.

Based on the tourism score, the best times of year to visit Mīzan Teferī for warm-weather activities are from mid August to early October and from late October to late February.

The warm season lasts for 3.9 months, from November 29 to March 26, with an average daily high temperature above 82°F. The hottest month of the year in Mīzan Teferī is March, with an average high of 83°F and low of 59°F.

The cool season lasts for 2.1 months, from June 20 to August 25, with an average daily high temperature below 77°F. The coldest month of the year in Mīzan Teferī is December, with an average low of 54°F and high of 83°F.

In Mīzan Teferī, 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 Mīzan Teferī begins around August 10 and lasts for 6.1 months, ending around February 14.

The clearest month of the year in Mīzan Teferī is September, during which on average the sky is clear, mostly clear, or partly cloudy 46% of the time.

The cloudier part of the year begins around February 14 and lasts for 5.9 months, ending around August 10.

The cloudiest month of the year in Mīzan Teferī is April, during which on average the sky is overcast or mostly cloudy 80% 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 Mīzan Teferī varies very significantly throughout the year.

The wetter season lasts 7.5 months, from March 18 to November 1, with a greater than 50% chance of a given day being a wet day. The month with the most wet days in Mīzan Teferī is April, with an average of 23.9 days with at least 0.04 inches of precipitation.

The drier season lasts 4.5 months, from November 1 to March 18. The month with the fewest wet days in Mīzan Teferī is January, with an average of 5.4 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 Mīzan Teferī is April, with an average of 23.9 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 85% on April 26.

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. Mīzan Teferī experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Mīzan Teferī. The month with the most rain in Mīzan Teferī is April, with an average rainfall of 9.0 inches.

The month with the least rain in Mīzan Teferī is January, with an average rainfall of 1.3 inches.

The length of the day in Mīzan Teferī does not vary substantially over the course of the year, staying within 31 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 6:20 AM on May 25, and the latest sunrise is 36 minutes later at 6:56 AM on February 1. The earliest sunset is at 6:16 PM on November 12, and the latest sunset is 42 minutes later at 6:58 PM on July 15.

Daylight saving time (DST) is not observed in Mīzan Teferī 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 Mīzan Teferī, 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 5% of 5% 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 Mīzan Teferī does not vary significantly over the course of the year, remaining within 0.3 miles per hour of 2.5 miles per hour throughout.

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

The wind is most often from the south for 4.3 months, from May 18 to September 28, with a peak percentage of 56% on August 27. The wind is most often from the east for 7.7 months, from September 28 to May 18, with a peak percentage of 47% on January 1.

To characterize how pleasant the weather is in Mīzan Teferī 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 Mīzan Teferī for general outdoor tourist activities are from mid August to early October and from late October to late February, with a peak score in the second week of September.

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 Mīzan Teferī for hot-weather activities is from mid December 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 Mīzan Teferī 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 2.5 months, from October 16 to December 30, with an average daily incident shortwave energy per square meter above 5.7 kWh. The brightest month of the year in Mīzan Teferī is November, with an average of 5.9 kWh.

The darker period of the year lasts for 2.0 months, from June 3 to August 3, with an average daily incident shortwave energy per square meter below 5.0 kWh. The darkest month of the year in Mīzan Teferī is July, with an average of 4.9 kWh.

For the purposes of this report, the geographical coordinates of Mīzan Teferī are 6.997 deg latitude, 35.589 deg longitude, and 4,649 ft elevation.

The topography within 2 miles of Mīzan Teferī contains very significant variations in elevation, with a maximum elevation change of 1,430 feet and an average elevation above sea level of 4,688 feet. Within 10 miles contains very significant variations in elevation (5,489 feet). Within 50 miles also contains extreme variations in elevation (7,608 feet).

The area within 2 miles of Mīzan Teferī is covered by cropland (100%), within 10 miles by cropland (66%) and trees (34%), and within 50 miles by cropland (32%) and trees (30%).