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Climate and Average Weather Year Round in Katoro Tanzania

In Katoro, the wet season is overcast, the dry season is partly cloudy, and it is warm year round. Over the course of the year, the temperature typically varies from 56°F to 86°F and is rarely below 52°F or above 90°F.

Based on the tourism score, the best time of year to visit Katoro for warm-weather activities is from early June to mid September.

Climate in Katoro

warmhotwarmJanFebMarAprMayJunJulAugSepOctNovDecNowNow63%63%23%23%overcastclearprecipitation: 4.9 inprecipitation: 4.9 in0.1 in0.1 inmuggy: 41%muggy: 41%1%1%drydrytourism score: 7.3tourism score: 7.34.94.9
Katoro weather by month. Click on each chart for more information.

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

Average High and Low Temperature in Katoro

Average High and Low Temperature in KatoroJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJul 1584°FJul 1584°FSep 2086°FSep 2086°F56°F56°F60°F60°FNov 1183°FNov 1183°FJan 2183°FJan 2183°F61°F61°F60°F60°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 83°F83°F83°F83°F84°F84°F84°F84°F86°F85°F83°F82°F
Temp. 70°F71°F71°F71°F71°F70°F69°F70°F72°F72°F71°F71°F
Low 60°F60°F61°F62°F62°F58°F57°F58°F60°F61°F61°F60°F

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 Katoro

Average Hourly Temperature in KatoroJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowcoolcoolcomfortablecomfortablecomfortablewarm
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

San José de Cusmapa, Nicaragua (8,194 miles away) and Brasília, Federal District, Brazil (5,492 miles) are the far-away foreign places with temperatures most similar to Katoro (view comparison).

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In Katoro, 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 Katoro begins around May 24 and lasts for 3.9 months, ending around September 22.

The clearest month of the year in Katoro is July, during which on average the sky is clear, mostly clear, or partly cloudy 61% of the time.

The cloudier part of the year begins around September 22 and lasts for 8.1 months, ending around May 24.

The cloudiest month of the year in Katoro is January, during which on average the sky is overcast or mostly cloudy 76% of the time.

Cloud Cover Categories in Katoro

Cloud Cover Categories in KatoroclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 2363%Jul 2363%Jan 3123%Jan 3123%May 2443%May 2443%Sep 2243%Sep 2243%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 76%75%74%74%61%50%39%39%53%69%73%74%
Clearer 24%25%26%26%39%50%61%61%47%31%27%26%

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

The wetter season lasts 6.9 months, from October 11 to May 8, with a greater than 34% chance of a given day being a wet day. The month with the most wet days in Katoro is November, with an average of 18.8 days with at least 0.04 inches of precipitation.

The drier season lasts 5.1 months, from May 8 to October 11. The month with the fewest wet days in Katoro is July, 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 Katoro is November, with an average of 18.8 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 66% on November 18.

Daily Chance of Precipitation in Katoro

Daily Chance of Precipitation in KatorowetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Nov 1866%Nov 1866%Jun 252%Jun 252%Oct 1134%Oct 1134%May 834%May 834%NowNowrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 15.5d14.7d18.4d16.0d7.6d1.3d0.9d2.3d4.8d12.1d18.8d17.7d

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. Katoro experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.7 months, from August 17 to June 8, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Katoro is November, with an average rainfall of 4.9 inches.

The rainless period of the year lasts for 2.3 months, from June 8 to August 17. The month with the least rain in Katoro is July, with an average rainfall of 0.2 inches.

Average Monthly Rainfall in Katoro

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 3.2″3.4″4.6″4.1″1.7″0.3″0.2″0.5″1.2″3.3″4.9″3.9″

The length of the day in Katoro does not vary substantially over the course of the year, staying within 18 minutes of 12 hours throughout. In 2024, the shortest day is June 20, with 11 hours, 57 minutes of daylight; the longest day is December 21, with 12 hours, 18 minutes of daylight.

Hours of Daylight and Twilight in Katoro

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 12.3h12.2h12.1h12.0h12.0h12.0h12.0h12.0h12.1h12.2h12.3h12.3h

The earliest sunrise is at 6:29 AM on November 7, and the latest sunrise is 31 minutes later at 7:00 AM on February 18. The earliest sunset is at 6:42 PM on October 27, and the latest sunset is 31 minutes later at 7:13 PM on February 6.

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

Sunrise & Sunset with Twilight in Katoro

Sunrise & Sunset with Twilight in KatoroJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMNov 76:29 AMNov 76:29 AM7:13 PMFeb 67:13 PMFeb 6Oct 276:42 PMOct 276:42 PM7:00 AMFeb 187:00 AMFeb 18daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in Katoro

Solar Elevation and Azimuth in KatoroJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM0000101010102020202030303030404040405050505060606060707070808000001010101020202020303030304040404050505050606060607070708064NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

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.

Moon Rise, Set & Phases in Katoro

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

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.

Katoro experiences significant seasonal variation in the perceived humidity.

The muggier period of the year lasts for 8.2 months, from September 20 to May 26, during which time the comfort level is muggy, oppressive, or miserable at least 11% of the time. The month with the most muggy days in Katoro is March, with 11.7 days that are muggy or worse.

The month with the fewest muggy days in Katoro is July, with 0.3 days that are muggy or worse.

Humidity Comfort Levels in Katoro

Humidity Comfort Levels in KatoromuggymuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 21%Jul 21%Apr 741%Apr 741%Sep 2011%Sep 2011%May 2611%May 2611%NowNowmuggymuggyhumidhumidcomfortablecomfortabledrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 9.8d9.6d11.7d11.6d5.9d0.8d0.3d1.1d2.8d6.5d9.0d10.0d

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 Katoro experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.3 months, from May 7 to October 17, with average wind speeds of more than 5.5 miles per hour. The windiest month of the year in Katoro is August, with an average hourly wind speed of 7.0 miles per hour.

The calmer time of year lasts for 6.7 months, from October 17 to May 7. The calmest month of the year in Katoro is January, with an average hourly wind speed of 3.9 miles per hour.

Average Wind Speed in Katoro

Average Wind Speed in KatorowindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mph10 mph10 mphAug 107.1 mphAug 107.1 mphJan 193.8 mphJan 193.8 mphMay 75.5 mphMay 75.5 mphOct 175.5 mphOct 175.5 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 3.93.94.24.85.76.37.07.06.45.54.64.1

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

The wind is most often from the south for 2.9 weeks, from February 12 to March 3 and for 1.8 months, from June 9 to August 2, with a peak percentage of 62% on July 11. The wind is most often from the east for 3.2 months, from March 3 to June 9 and for 3.1 months, from August 2 to November 4, with a peak percentage of 70% on September 8. The wind is most often from the north for 3.3 months, from November 4 to February 12, with a peak percentage of 47% on January 1.

Wind Direction in Katoro

Wind Direction in KatoroNSESENJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowsoutheastnorthwest
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

To characterize how pleasant the weather is in Katoro 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 Katoro for general outdoor tourist activities is from early June to mid September, with a peak score in the last week of July.

Tourism Score in Katoro

Tourism Score in Katorobest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.37.34.94.95.15.1NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

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 Katoro for hot-weather activities is from mid July to early October, with a peak score in the first week of September.

Beach/Pool Score in Katoro

Beach/Pool Score in Katorobest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.75.74.14.1NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

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 Katoro 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 in Katoro

Time Spent in Various Temperature Bands and the Growing Season in KatoroJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%100%Jan 1100%Jan 1100%Jul 2100%Jul 2NowNowcoolcomfortablewarmhotcold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

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.

Growing Degree Days in Katoro

Growing Degree Days in KatoroJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°F6,000°F6,000°F7,000°F7,000°FJul 690°FJul 690°FAug 17900°FAug 17900°FSep 281,800°FSep 281,800°FJun 307,538°FJun 307,538°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

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 2.4 months, from July 15 to September 28, with an average daily incident shortwave energy per square meter above 6.5 kWh. The brightest month of the year in Katoro is August, with an average of 6.7 kWh.

The darker period of the year lasts for 2.5 months, from November 5 to January 19, with an average daily incident shortwave energy per square meter below 5.7 kWh. The darkest month of the year in Katoro is December, with an average of 5.5 kWh.

Average Daily Incident Shortwave Solar Energy in Katoro

Average Daily Incident Shortwave Solar Energy in KatorobrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhSep 16.8 kWhSep 16.8 kWhDec 65.4 kWhDec 65.4 kWhJul 156.5 kWhJul 156.5 kWhJan 195.7 kWhJan 195.7 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 5.76.06.05.86.16.36.56.76.76.25.65.5

For the purposes of this report, the geographical coordinates of Katoro are -3.020 deg latitude, 31.896 deg longitude, and 4,255 ft elevation.

The topography within 2 miles of Katoro contains only modest variations in elevation, with a maximum elevation change of 407 feet and an average elevation above sea level of 4,154 feet. Within 10 miles contains only modest variations in elevation (823 feet). Within 50 miles also contains very significant variations in elevation (1,873 feet).

The area within 2 miles of Katoro is covered by cropland (54%) and shrubs (43%), within 10 miles by cropland (41%) and trees (29%), and within 50 miles by trees (35%) and cropland (29%).

This report illustrates the typical weather in Katoro, 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 is only a single weather station, Mwanza Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Katoro.

At a distance of 132 kilometers from Katoro, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and Katoro according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.