Siliana weather in August

In August, Siliana sees average daytime highs of 33°C and overnight lows near 20°C, with 21 mm of rain across 4.8 wet days and about 13.4 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 34°C in the first days to 31°C by the end. The sky is clear or mostly clear about 77% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 13 h 54 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Siliana's 2nd-clearest and 12th-windiest month. For the whole year in context, see Siliana's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
20°
12th coldest
Rainfall
21 mm
4.8 wet days
Daylight
13 h 24 min
5:45 AM – 7:08 PM
Cloud cover
23%
2nd clearest
Wind
8 km/h
12th windiest
Solar energy
6.68 kWh/m²
Travel score
4.3
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 34°C in the first days to 31°C by the end.

A typical August day in Siliana reaches about 33°C in the afternoon and slips back to 20°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 38°C. Set against its neighbours, August runs on par with July and about 5°C warmer than September.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13420
23420
33420
43421
53421
63421
73421
83421
93321
103321
113321
123321
133320
143320
153320
163320
173320
183320
193320
203320
213320
223320
233320
243220
253220
263220
273220
283219
293219
303119
313119

How August really feels in Siliana

Once humidity and wind are folded in, August averages 26 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
26
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Siliana weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan12° / 457.90.59.83.6
Feb13° / 388.20.510.63.9
Mar16° / 528.90.111.75.3
Apr20° / 508.70.112.96.5
May24° / 13°397.1013.97.6
Jun30° / 17°244.5014.46.3
Jul33° / 20°92.9014.24.5
Aug33° / 20°214.8013.44.3
Sep28° / 17°467.7012.26.4
Oct24° / 13°386.9011.17.5
Nov18° / 366.2010.16.3
Dec14° / 3870.29.64.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 77% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 15% of August, with mostly cloudy or overcast conditions the remaining 8%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1964
2964
3964
4955
5946
6946
7946
8946
9937
10937
11937
12937
13937
14937
15937
16937
17937
18937
19937
20937
21928
22928
239010
249010
258911
268911
278812
288713
298614
308614
318416

Chance of precipitation in August

Any precipitation

Siliana gets around 21 mm of rain over 4.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 16% and peaks near 23% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
19
210
310
411
511
611
712
812
913
1014
1114
1214
1315
1415
1515
1615
1715
1816
1916
2017
2117
2218
2318
2419
2519
2620
2720
2821
2921
3022
3123

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the comfortable band about 40% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14441151
24341161
34240171
44140181
54040191
63939202
73839212
83739222
93639223
103539233
113439234
123339244
133240244
143240254
153140254
163140254
173140254
183040254
193140254
203141254
213141254
223141254
233141243
243141243
253141253
263142253
273142253
283042253
293042253
303042263
312942263

Wind in August

Winds average 8 km/h in August, the calmest month.

Across August, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 54 min at the start of August to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over August. Sunrise moves from 5:33 AM to 5:57 AM, and sunset from 7:24 PM to 6:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:337:24
213.85:347:23
313.85:357:22
413.85:357:21
513.75:367:20
613.75:377:19
713.75:387:18
813.65:397:17
913.65:397:16
1013.65:407:15
1113.55:417:14
1213.55:427:13
1313.55:437:12
1413.45:447:10
1513.45:447:09
1613.45:457:08
1713.35:467:07
1813.35:477:06
1913.35:487:04
2013.25:487:03
2113.25:497:02
2213.25:507:00
2313.15:516:59
2413.15:526:58
2513.15:526:56
2613.05:536:55
2713.05:546:53
2813.05:556:52
2912.95:566:51
3012.95:576:49
3112.85:576:48

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.68 kWh/m².

For context, solar energy here swings from a low near 2.34 kWh/m² to a high of 7.6 kWh/m² in July across the year — August's 6.68 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.2Intense
37.2Intense
47.1Intense
57.1Intense
67.0Intense
77.0Intense
87.0Intense
96.9Intense
106.9Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.7Intense
166.7Intense
176.7Intense
186.6Intense
196.6Intense
206.5Intense
216.5Intense
226.5Intense
236.4Intense
246.4Intense
256.3Intense
266.3Intense
276.2Intense
286.2Intense
296.1Intense
306.0Intense
316.0Bright
Planning a trip in August

Hazard calendar for Siliana

In seasonPeak

None of Siliana's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Siliana sees seasonal dust haze (June), heaviest in June.

Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Siliana?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.3
Sightseeing
9th-best month of the year
7.6
Beach & pool
3rd-best month of the year

August is a reasonable time to visit Siliana for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Siliana in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Siliana sees daytime highs around 33°C and nights near 20°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Siliana in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Siliana peaks around July 16 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateJul 16UV 10Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr5Moderate
May8Very high
Jun9Very high
Jul10Extreme
Aug8Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Siliana in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Siliana is worst in September — around 24 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1724 µg/m³Dec 2118 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb19Moderate
Mar21Moderate
Apr24Moderate
May22Moderate
Jun22Moderate
Jul21Moderate
Aug22Moderate
Sep24Moderate
Oct22Moderate
Nov20Moderate
Dec17Moderate
Location & terrain

Where is Siliana?

Siliana sits at 36.1°N, 9.4°E, 428 m above sea level, in Tunisia. The nearest listed city is Tabursuq, 43 km away.

DahmaniEl FahsEl KefMedjez el BabJendoubaBéjaTajerouine

Topography around Siliana

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Siliana.

Within 3 km, the terrain around Siliana has only modest variations in elevation — a maximum elevation change of 73 m around an average of 431 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 723 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,360 m.

The land around Siliana is covered by cropland (74%) within 3 km, cropland (62%) and grassland (24%) within 16 km, and cropland (51%) and grassland (32%) within 80 km.

3 km
73 m
16 km
723 m
80 km
1,360 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Tabursuq 43 km · Dahmani 51 km · El Fahs 58 km · El Kef 61 km · Medjez el Bab 66 km · Jendouba 70 km · Béja 73 km · Tajerouine 77 km

Tunisia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$4,657
2025
Happiness
4.8 / 10
World Happiness, 2025
Safe drinking water
65%
of population, 2024
Homicide rate
4.7
per 100k, 2020
Road deaths
16.5
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 498
Religion
Muslim 99%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Siliana (36.085°, 9.3708°, elevation 428 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).