Dellys weather in October

In October, Dellys sees average daytime highs of 22°C and overnight lows near 20°C, with 68 mm of rain across 7.8 wet days and about 11 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 21°C by the end. The sky is clear or mostly clear about 50% of the time in October, and the air most often feels humid.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 30 min by month's end. Set against the rest of the year, October is Dellys's 6th-clearest and 12th-windiest month. For the whole year in context, see Dellys's year-round climate.

Daytime high
22°
5th warmest
Overnight low
20°
8th coldest
Rainfall
68 mm
7.8 wet days
Daylight
11 hours
6:58 AM – 6:00 PM
Cloud cover
43%
6th clearest
Wind
17 km/h
12th windiest
Solar energy
3.9 kWh/m²
Travel score
7.2
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 21°C by the end.

A typical October day in Dellys reaches about 22°C in the afternoon and slips back to 20°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 24°C. Set against its neighbours, October runs about 3°C cooler than September and about 4°C warmer than November.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12321
22321
32321
42321
52321
62321
72321
82321
92220
102220
112220
122220
132220
142220
152220
162220
172220
182220
192220
202219
212119
222119
232119
242119
252119
262119
272119
282118
292118
302018
312018

Dellys weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 12°12612.99.84.2
Feb14° / 12°9610.610.64.2
Mar15° / 13°778.811.75.0
Apr17° / 14°648.112.95.7
May19° / 17°475.613.97.1
Jun22° / 20°71.414.58.7
Jul25° / 23°10.314.39.4
Aug26° / 24°51.213.48.9
Sep24° / 23°355.412.38.1
Oct22° / 20°687.8117.2
Nov18° / 16°13213.1105.7
Dec16° / 13°13212.19.54.8

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 18% of October, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27327
37327
47327
57327
67228
77129
87129
97030
106931
116931
126733
136733
146733
156535
166535
176535
186535
196535
206535
216634
226634
236634
246634
256733
266733
276733
286733
296832
306733
316733

Chance of precipitation in October

Any precipitation

Dellys gets around 68 mm of rain over 7.8 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 26% and peaks near 33% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
124
224
324
424
524
624
724
825
925
1025
1125
1225
1325
1425
1526
1626
1726
1826
1926
2025
2125
2225
2325
2426
2526
2627
2728
2829
2931
3032
3133

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the humid band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 25% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
121633418
221634417
331734407
431834396
531934385
641935385
742035374
852135354
952136343
1062237333
1162338312
1272338302
1382339291
1482440271
1592441261
1692542240
1792543220
18102644210
19102645190
20102745170
21112746160
22112847140
23122947130
24123047110
25133146100
2614324690
2715334580
2816344370
2918354260
3019364050
3122363840

Wind in October

Winds average 17 km/h in October, the calmest month.

Across October, daily wind ranges from about 17 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3119light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over October. Sunrise moves from 6:45 AM to 7:13 AM, and sunset from 6:22 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:456:22
211.66:456:21
311.56:466:19
411.56:476:18
511.56:486:16
611.46:496:15
711.46:506:13
811.36:516:12
911.36:526:10
1011.36:536:09
1111.26:546:07
1211.26:546:06
1311.26:556:05
1411.16:566:03
1511.16:576:02
1611.06:586:00
1711.06:595:59
1811.07:005:58
1910.97:015:57
2010.97:025:55
2110.87:035:54
2210.87:045:53
2310.87:055:52
2410.77:065:50
2510.77:075:49
2610.77:085:48
2710.67:095:47
2810.67:105:46
2910.67:115:45
3010.57:125:44
3110.57:135:43

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.9 kWh/m².

For context, solar energy here swings from a low near 2.22 kWh/m² to a high of 7.46 kWh/m² in July across the year — October's 3.9 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.4Bright
44.4Bright
54.3Bright
64.3Bright
74.3Bright
84.2Bright
94.2Bright
104.1Bright
114.1Bright
124.0Bright
134.0Bright
144.0Moderate
153.9Moderate
163.9Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.7Moderate
213.7Moderate
223.6Moderate
233.6Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.3Moderate
313.3Moderate
Planning a trip in October

Hazard calendar for Dellys

In seasonPeak

In October, Dellys sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Dellys's rainy season runs October–April, when most of the year's rain falls.

Dellys sees seasonal dust haze (June–July), heaviest in July.

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

Is October a good time to visit Dellys?

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

7.2
Sightseeing
5th-best month of the year
4.9
Beach & pool
5th-best month of the year

October is one of the better times to visit Dellys for general sightseeing.

What to pack for Dellys in October

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

In October, Dellys sees daytime highs around 22°C and nights near 20°C. Little to plan around — just the basics. About 8 days see rain.

Sea temperature near Dellys in October

The nearest coast averages about 22°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 19 km away) is warmest in August at about 25°C and coldest in February near 15°C.

It's comfortable for a long swim from Jun 5 to Nov 7 — about 5.1 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar15Cool
Apr16Cool
May18Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec17Cool

UV index in Dellys in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Dellys peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 16UV 9Dec 20UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar6High
Apr8Very high
May7Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Dellys in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Dellys is worst in August — around 64 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorUnhealthyPoorAug 1063 µg/m³Nov 1844 µg/m³
PM2.5 (µg/m³)Level
Jan47Poor
Feb53Poor
Mar59Unhealthy
Apr57Unhealthy
May55Poor
Jun51Poor
Jul63Unhealthy
Aug64Unhealthy
Sep47Poor
Oct55Unhealthy
Nov43Poor
Dec50Poor
Location & terrain

Where is Dellys?

Dellys sits at 36.9°N, 3.9°E, 63 m above sea level, in Algeria. The nearest listed city is Tadmaït, 19 km away.

Topography around Dellys

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

Within 3 km, the terrain around Dellys has significant variations in elevation — a maximum elevation change of 374 m around an average of 61 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 890 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,266 m.

The land around Dellys is covered by water (59%) within 3 km, water (56%) within 16 km, and water (38%), trees (27%) and grassland (20%) within 80 km.

3 km
374 m
16 km
890 m
80 km
2,266 m
treesshrubsgrasslandcroplandartificial surfaceswater
October weather nearby: Tadmaït 19 km · Makouda 20 km · Naciria 20 km · Draa Ben Khedda 21 km · Boudjima 25 km · Tizi Ouzou 26 km · Bordj Menaïel 26 km · Tirmitine 30 km

Algeria travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 33% of US
price level, 2025
GDP per capita
$6,051
2025
Happiness
5.7 / 10
World Happiness, 2025
Safe drinking water
69%
of population, 2024
Homicide rate
1.2
per 100k, 2023
Road deaths
20.9
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 468
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 Dellys (36.9172°, 3.9131°, elevation 63 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).