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Climate and Average Weather Year Round in Comoros Comoros

In Comoros, the wet season is hot and mostly cloudy; the dry season is warm, windy, and mostly clear; and it is oppressive year round. Over the course of the year, the temperature typically varies from 70°F to 88°F and is rarely below 68°F or above 90°F.

Based on the beach/pool score, the best time of year to visit Comoros for hot-weather activities is from late May to late October.

Climate in Comoros

hotwarmhotJanFebMarAprMayJunJulAugSepOctNovDecNowNow87%87%18%18%clearovercastprecipitation: 6.0 inprecipitation: 6.0 in0.3 in0.3 inmuggy: 100%muggy: 100%84%84%beach/pool score: 8.7beach/pool score: 8.74.14.1
Comoros weather by month. Click on each chart for more information.

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

Average High and Low Temperature in Comoros

Average High and Low Temperature in ComorosJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FAug 2382°FAug 2382°FNov 2988°FNov 2988°F70°F70°F76°F76°FMay 1486°FMay 1486°FJul 483°FJul 483°FSep 2583°FSep 2583°F75°F75°F74°F74°F71°F71°F71°F71°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
High87°F87°F87°F87°F86°F84°F83°F82°F83°F85°F87°F87°F
Temp.82°F82°F82°F81°F80°F78°F77°F76°F77°F79°F81°F82°F
Low76°F77°F76°F76°F74°F72°F70°F70°F71°F73°F76°F76°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 Comoros

Average Hourly Temperature in ComorosJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowcomfortablecomfortablewarmhothot
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.
Map
Marker
© Esri, et al.

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In Comoros, 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 Comoros begins around April 12 and lasts for 7.6 months, ending around November 30.

The clearest month of the year in Comoros is August, during which on average the sky is clear, mostly clear, or partly cloudy 86% of the time.

The cloudier part of the year begins around November 30 and lasts for 4.4 months, ending around April 12.

The cloudiest month of the year in Comoros is February, during which on average the sky is overcast or mostly cloudy 81% of the time.

Cloud Cover Categories in Comoros

Cloud Cover Categories in ComorosclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 1887%Aug 1887%Feb 1318%Feb 1318%Apr 1251%Apr 1251%Nov 3053%Nov 3053%NowNowclearmostly clearmostly cloudyovercastpartly cloudy
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
Cloudier80%81%70%45%27%21%16%14%18%25%38%65%
Clearer20%19%30%55%73%79%84%86%82%75%62%35%

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

The wetter season lasts 4.3 months, from December 16 to April 25, with a greater than 28% chance of a given day being a wet day. The month with the most wet days in Comoros is February, with an average of 14.2 days with at least 0.04 inches of precipitation.

The drier season lasts 7.7 months, from April 25 to December 16. The month with the fewest wet days in Comoros is September, with an average of 1.5 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 Comoros is February, with an average of 14.2 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 53% on February 6.

Daily Chance of Precipitation in Comoros

Daily Chance of Precipitation in ComoroswetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 653%Feb 653%Sep 94%Sep 94%Jan 144%Jan 144%Dec 1628%Dec 1628%Apr 2528%Apr 2528%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
Rain15.5d14.2d13.6d10.0d5.1d3.4d3.9d2.2d1.5d1.9d3.3d9.3d

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. Comoros experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.2 months, from November 1 to August 9, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Comoros is January, with an average rainfall of 5.9 inches.

The rainless period of the year lasts for 2.8 months, from August 9 to November 1. The month with the least rain in Comoros is September, with an average rainfall of 0.3 inches.

Average Monthly Rainfall in Comoros

Average Monthly Rainfall in ComorosrainrainJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 inJan 256.0 inJan 256.0 inSep 230.3 inSep 230.3 inJul 60.9 inJul 60.9 inNov 10.5 inNov 10.5 inAug 90.5 inAug 90.5 in
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
Rainfall5.9″5.6″4.4″3.2″1.6″0.8″0.8″0.4″0.3″0.4″0.8″2.8″

The length of the day in Comoros does not vary substantially over the course of the year, staying within 50 minutes of 12 hours throughout. In 2021, the shortest day is June 21, with 11 hours, 24 minutes of daylight; the longest day is December 21, with 12 hours, 51 minutes of daylight.

Hours of Daylight and Twilight in Comoros

Hours of Daylight and Twilight in ComorosJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minSep 2212 hr, 6 minSep 2212 hr, 51 minDec 2112 hr, 51 minDec 2112 hr, 7 minMar 2012 hr, 7 minMar 2011 hr, 24 minJun 2111 hr, 24 minJun 21daydaynightNowNow
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
Daylight12.7h12.5h12.1h11.8h11.5h11.4h11.5h11.7h12.0h12.4h12.7h12.8h

The earliest sunrise is at 5:26 AM on November 20, and the latest sunrise is 58 minutes later at 6:24 AM on July 10. The earliest sunset is at 5:43 PM on May 30, and the latest sunset is 52 minutes later at 6:35 PM on January 23.

Daylight saving time (DST) is not observed in Comoros during 2021.

Sunrise & Sunset with Twilight in Comoros

Sunrise & Sunset with Twilight in ComorosJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMNov 205:26 AMNov 205:26 AM6:35 PMJan 236:35 PMJan 23May 305:43 PMMay 305:43 PM6:24 AMJul 106:24 AMJul 10daySolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2021. 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 key lunar data for 2021. 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 Comoros

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.

Comoros experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 9.9 months, from August 28 to June 26, during which time the comfort level is muggy, oppressive, or miserable at least 88% of the time. The month with the most muggy days in Comoros is March, with 31.0 days that are muggy or worse.

The month with the fewest muggy days in Comoros is July, with 26.2 days that are muggy or worse.

Humidity Comfort Levels in Comoros

Humidity Comfort Levels in ComorosmuggymuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 2084%Jul 2084%100%Feb 27100%Feb 27Aug 2888%Aug 2888%NowNowmiserablemiserableoppressiveoppressivemuggymuggyhumidhumid
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 days31.0d28.0d31.0d30.0d30.5d27.4d26.2d26.5d28.4d30.7d29.9d31.0d

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

The windier part of the year lasts for 3.8 months, from April 24 to August 19, with average wind speeds of more than 10.2 miles per hour. The windiest month of the year in Comoros is June, with an average hourly wind speed of 12.4 miles per hour.

The calmer time of year lasts for 8.2 months, from August 19 to April 24. The calmest month of the year in Comoros is March, with an average hourly wind speed of 7.9 miles per hour.

Average Wind Speed in Comoros

Average Wind Speed in ComoroswindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphJun 2412.7 mphJun 2412.7 mphMar 207.6 mphMar 207.6 mphApr 2410.2 mphApr 2410.2 mphAug 1910.2 mphAug 1910.2 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)10.19.77.99.511.612.412.210.39.19.69.38.6

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

The wind is most often from the east for 1.2 months, from March 8 to April 14 and for 3.5 months, from August 30 to December 16, with a peak percentage of 82% on November 2. The wind is most often from the south for 4.5 months, from April 14 to August 30, with a peak percentage of 81% on July 3. The wind is most often from the north for 2.7 months, from December 16 to March 8, with a peak percentage of 63% on January 1.

Wind Direction in Comoros

Wind Direction in ComorosNESENJanFebMarAprMayJunJulAugSepOctNovDec0%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).

Comoros is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 4.7 months, from December 15 to May 4, with an average temperature above 83°F. The month of the year in Comoros with the warmest water is March, with an average temperature of 85°F.

The time of year with cooler water lasts for 3.3 months, from July 5 to October 13, with an average temperature below 79°F. The month of the year in Comoros with the coolest water is August, with an average temperature of 78°F.

Average Water Temperature in Comoros

Average Water Temperature in ComoroswarmcoolJanFebMarAprMayJunJulAugSepOctNovDec76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°FMar 2085°FMar 2085°F78°FAug 1978°FAug 19Dec 1583°FDec 1583°FMay 483°FMay 483°FJul 579°FJul 579°FOct 1379°FOct 1379°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature84°F84°F85°F84°F83°F81°F79°F78°F78°F80°F82°F83°F

To characterize how pleasant the weather is in Comoros 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 Comoros for general outdoor tourist activities is from late June to late September, with a peak score in the third week of August.

Tourism Score in Comoros

Tourism Score in Comorosbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.97.92.62.6NowNowprecipitationprecipitationcloudsclouds tourism 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 Comoros for hot-weather activities is from late May to late October, with a peak score in the third week of August.

Beach/Pool Score in Comoros

Beach/Pool Score in Comorosbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.78.74.14.1NowNowprecipitationprecipitationcloudscloudstemperaturetemperature beach/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 Comoros 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 Comoros

Time Spent in Various Temperature Bands and the Growing Season in ComorosJanFebMarAprMayJunJulAugSepOctNovDec0%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 3100%Jul 3NowNowcomfortablewarmhot
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 Comoros

Growing Degree Days in ComorosJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F2,000°F2,000°F4,000°F4,000°F6,000°F6,000°F8,000°F8,000°F10,000°F10,000°FJul 490°FJul 490°FAug 4900°FAug 4900°FJun 3010,721°FJun 3010,721°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 September 19 to December 1, with an average daily incident shortwave energy per square meter above 6.9 kWh. The brightest month of the year in Comoros is October, with an average of 7.3 kWh.

The darker period of the year lasts for 3.1 months, from January 1 to April 6, with an average daily incident shortwave energy per square meter below 5.5 kWh. The darkest month of the year in Comoros is February, with an average of 5.1 kWh.

Average Daily Incident Shortwave Solar Energy in Comoros

Average Daily Incident Shortwave Solar Energy in ComorosbrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhNov 27.4 kWhNov 27.4 kWhFeb 235.0 kWhFeb 235.0 kWhSep 196.9 kWhSep 196.9 kWhJan 15.5 kWhJan 15.5 kWhApr 65.5 kWhApr 65.5 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)5.35.15.25.75.65.45.66.26.87.37.26.2

For the purposes of this report, the geographical coordinates of Comoros are -12.233 deg latitude, 44.446 deg longitude, and 0 ft elevation.

The topography within 2 miles of Comoros is essentially flat, with a maximum elevation change of 0 feet and an average elevation above sea level of 0 feet. Within 10 miles is also essentially flat (0 feet). Within 50 miles is also essentially flat (0 feet).

The area within 2 miles of Comoros is covered by cropland (54%) and trees (38%), within 10 miles by water (55%) and trees (21%), and within 50 miles by water (98%).

This report illustrates the typical weather in Comoros, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used for this report can be found on the Prince Said Ibrahim International Airport page.

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.

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