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August Weather in Sfax Tunisia

Daily high temperatures decrease by 2°F, from 90°F to 88°F, rarely falling below 84°F or exceeding 96°F. The highest daily average high temperature is 90°F on August 8.

Daily low temperatures are around 74°F, rarely falling below 69°F or exceeding 79°F. The highest daily average low temperature is 75°F on August 18.

For reference, on August 5, the hottest day of the year, temperatures in Sfax typically range from 74°F to 90°F, while on January 19, the coldest day of the year, they range from 45°F to 62°F.

Average High and Low Temperature in August in Sfax

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.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on August. The horizontal axis is the day, 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 August in Sfax

Average Hourly Temperature in August in SfaxAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMJulSepcomfortablecomfortablewarmhot
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.

Mary Esther, Florida, United States (5,440 miles away); Tybee Island, Georgia, United States (5,090 miles); and Longmen, China (6,152 miles) are the far-away foreign places with temperatures most similar to Sfax (view comparison).

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The month of August in Sfax experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 2% to 10%.

The clearest day of the month is August 1, with clear, mostly clear, or partly cloudy conditions 98% of the time.

For reference, on October 26, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 37%, while on July 24, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 98%.

Cloud Cover Categories in August in Sfax

Cloud Cover Categories in August in SfaxAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JulSepAug 198%Aug 198%Aug 3190%Aug 3190%Aug 1197%Aug 1197%Aug 2194%Aug 2194%clearovercastmostly clearmostly cloudypartly 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.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Sfax, the chance of a wet day over the course of August is increasing, starting the month at 2% and ending it at 6%.

For reference, the year's highest daily chance of a wet day is 13% on October 1, and its lowest chance is 1% on July 14.

Probability of Precipitation in August in Sfax

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).

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during August in Sfax is gradually increasing, starting the month at 0.1 inches, when it rarely exceeds 0.4 inches or falls below -0.0 inches, and ending the month at 0.4 inches, when it rarely exceeds 1.3 inches.

Average Monthly Rainfall in August in Sfax

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.

Over the course of August in Sfax, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 57 minutes, implying an average daily decrease of 1 minute, 54 seconds, and weekly decrease of 13 minutes, 16 seconds.

The shortest day of the month is August 31, with 12 hours, 55 minutes of daylight and the longest day is August 1, with 13 hours, 52 minutes of daylight.

Hours of Daylight and Twilight in August in Sfax

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.

The earliest sunrise of the month in Sfax is 5:27 AM on August 1 and the latest sunrise is 22 minutes later at 5:49 AM on August 31.

The latest sunset is 7:18 PM on August 1 and the earliest sunset is 35 minutes earlier at 6:44 PM on August 31.

Daylight saving time is not observed in Sfax during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:03 AM and sets 14 hours, 29 minutes later, at 7:33 PM, while on December 21, the shortest day of the year, it rises at 7:20 AM and sets 9 hours, 49 minutes later, at 5:09 PM.

Sunrise & Sunset with Twilight in August in Sfax

The solar day over the course of August. 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 August in Sfax

Solar Elevation and Azimuth in August in SfaxAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMJulSep0010102020203030404050505060700001010202030303040405050606070
northeastsouthwest
Solar elevation and azimuth over the course of August 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 August 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in August in Sfax

Moon Rise, Set & Phases in August in SfaxAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMJulSepJul 511:58 PMJul 511:58 PMJul 2111:18 AMJul 2111:18 AMAug 412:14 PMAug 412:14 PMAug 197:26 PMAug 197:26 PMSep 32:56 AMSep 32:56 AMSep 183:35 AMSep 183:35 AM4:10 AM4:10 AM7:40 PM7:40 PM7:11 PM7:11 PM4:53 AM4:53 AM5:08 AM5:08 AM7:39 PM7:39 PM7:09 PM7:09 PM6:12 AM6:12 AM6:00 AM6:00 AM7:01 PM7:01 PM6:08 PM6:08 PM6:12 AM6:12 AM
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.
Aug 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
10%2:02 AMNE5:34 PMNW-9:48 AMS240,160 mi
2
4%3:01 AMNE6:24 PMWNW-10:45 AMS242,391 mi
3
1%4:04 AMENE7:05 PMWNW-11:38 AMS244,557 mi
4
0%5:08 AMENE7:39 PMWNW-12:27 PMS246,604 mi
5
1%6:10 AMENE8:08 PMWNW-1:12 PMS248,454 mi
6
4%7:10 AMENE8:34 PMWNW-1:55 PMS250,010 mi
7
9%8:07 AME8:57 PMW-2:34 PMS251,154 mi
8
15%9:03 AME9:20 PMW-3:13 PMS251,767 mi
9
23%9:58 AME9:42 PMW-3:51 PMS251,736 mi
10
31%10:54 AMESE10:06 PMWSW-4:31 PMS250,974 mi
11
41%11:52 AMESE10:33 PMWSW-5:13 PMS249,432 mi
12
50%12:52 PMESE11:05 PMWSW-5:58 PMS247,119 mi
13
61%1:54 PMESE11:43 PMWSW-6:48 PMS244,110 mi
14
71%2:58 PMSE--7:43 PMS240,560 mi
15
80%-12:29 AMSW4:00 PMSE8:42 PMS236,703 mi
16
89%-1:25 AMSW4:57 PMSE9:44 PMS232,844 mi
17
95%-2:30 AMSW5:48 PMESE10:45 PMS229,329 mi
18
99%-3:42 AMWSW6:32 PMESE11:44 PMS226,495 mi
19
100%-4:57 AMWSW7:09 PMESE--
20
100%-6:12 AMWSW7:41 PME12:40 AMS224,611 mi
21
98%-7:25 AMW8:11 PME1:32 AMS223,832 mi
22
93%-8:37 AMW8:41 PME2:22 AMS224,181 mi
23
85%-9:49 AMWNW9:11 PMENE3:12 AMS225,549 mi
24
75%-11:01 AMWNW9:44 PMENE4:02 AMS227,729 mi
25
64%-12:12 PMWNW10:22 PMENE4:54 AMS230,466 mi
26
50%-1:23 PMWNW11:06 PMENE5:49 AMS233,495 mi
27
41%-2:30 PMNW11:57 PMNE6:46 AMS236,588 mi
28
30%-3:30 PMNW-7:43 AMS239,569 mi
29
21%12:55 AMNE4:22 PMNW-8:40 AMS242,321 mi
30
13%1:56 AMENE5:05 PMWNW-9:34 AMS244,782 mi
31
7%2:59 AMENE5:41 PMWNW-10:24 AMS246,926 mi

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 chance that a given day will be muggy in Sfax is gradually increasing during August, rising from 67% to 72% over the course of the month.

The highest chance of a muggy day during August is 75% on August 16.

For reference, on August 15, the muggiest day of the year, there are muggy conditions 75% of the time, while on December 10, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in August in Sfax

Humidity Comfort Levels in August in SfaxAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%JulSepAug 1675%Aug 1675%Aug 167%Aug 167%Aug 3172%Aug 3172%oppressiveoppressivemuggymuggyhumidhumidcomfortablecomfortabledrydrymiserablemiserable
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.

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 Sfax is essentially constant during August, remaining within 0.3 miles per hour of 8.8 miles per hour throughout.

For reference, on December 22, the windiest day of the year, the daily average wind speed is 12.3 miles per hour, while on August 5, the calmest day of the year, the daily average wind speed is 8.5 miles per hour.

The lowest daily average wind speed during August is 8.5 miles per hour on August 5.

Average Wind Speed in August in Sfax

Average Wind Speed in August in SfaxAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphJulSepAug 58.5 mphAug 58.5 mphAug 319.1 mphAug 319.1 mphAug 218.9 mphAug 218.9 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Sfax throughout August is predominantly from the east, with a peak proportion of 46% on August 6.

Wind Direction in August in Sfax

Wind Direction in August in SfaxAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%JulSepsoutheastnorthwest
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).

Sfax 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 surface water temperature in Sfax is essentially constant during August, remaining around 82°F throughout.

The highest average surface water temperature during August is 82°F on August 19.

Average Water Temperature in August in Sfax

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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 Sfax 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 August in Sfax

Time Spent in Various Temperature Bands and the Growing Season in August in SfaxAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JulSep100%Aug 16100%Aug 16100%Jul 2100%Jul 2comfortablewarmhotcoolsweltering
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.

The average accumulated growing degree days in Sfax are very rapidly increasing during August, increasing by 934°F, from 3,350°F to 4,284°F, over the course of the month.

Growing Degree Days in August in Sfax

Growing Degree Days in August in SfaxAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031313,000°F3,000°F3,200°F3,200°F3,400°F3,400°F3,600°F3,600°F3,800°F3,800°F4,000°F4,000°F4,200°F4,200°F4,400°F4,400°FJulSepAug 13,350°FAug 13,350°FAug 314,284°FAug 314,284°FAug 113,663°FAug 113,663°FAug 213,978°FAug 213,978°F
The average growing degree days accumulated over the course of August, 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 in Sfax is decreasing during August, falling by 1.2 kWh, from 7.7 kWh to 6.4 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in August in Sfax

Average Daily Incident Shortwave Solar Energy in August in SfaxAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJulSepAug 17.7 kWhAug 17.7 kWhAug 316.4 kWhAug 316.4 kWhAug 117.3 kWhAug 117.3 kWhAug 216.9 kWhAug 216.9 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Sfax are 34.741 deg latitude, 10.760 deg longitude, and 26 ft elevation.

The topography within 2 miles of Sfax is essentially flat, with a maximum elevation change of 82 feet and an average elevation above sea level of 13 feet. Within 10 miles is essentially flat (427 feet). Within 50 miles contains only modest variations in elevation (968 feet).

The area within 2 miles of Sfax is covered by artificial surfaces (63%) and water (28%), within 10 miles by water (44%) and cropland (33%), and within 50 miles by water (54%) and cropland (34%).

This report illustrates the typical weather in Sfax, 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 are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Sfax.

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

The estimated value at Sfax is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Sfax and a given station.

The stations contributing to this reconstruction are:

Sources mapDTTX, 98%4 mi, 56 ftDTTM, 2%64 mi, -20 ft© OpenStreetMap contributors

To get a sense of how much these sources agree with each other, you can view a comparison of Sfax and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

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.

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