Climate and average weather in Sig

In Sig, the summers are sweltering, dry, and clear and the winters are mild and mostly clear.

Best: late February to mid June

Over the course of the year, the temperature in Sig typically varies from 6°C to 34°C, and is rarely below 2°C or above 38°C. August is the hottest month of the year, while January is the coldest.

Based on the travel score, the best times of year to visit Sig for warm-weather activities are from late February to mid June and late September to early December.

Hottest
Aug
34°
Coldest
Jan
Wettest
Nov
51 mm
Driest
Jul
1 mm
Rain / yr
345 mm
59 wet days
Daylight
9.6–14.4 h
shortest–longest
Elevation
62 m
35.5°N
Clearest
Jul
15% cloud

Sig weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late February to mid June.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Sig, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 3.1 months, from June 15 to September 15, with daily high temperatures above 30°C. The hottest month of the year in Sig is August, with an average high of 34°C and low of 22°C.

The cool season lasts 3.9 months, from November 18 to March 16, with daily high temperatures below 20°C. The coldest month of the year in Sig is January, with an average low of 6°C and high of 16°C.

Days typically run about 11°C warmer than nights, with the widest day–night swing (around 12°C) in July.

10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan166
Feb177
Mar209
Apr2211
May2615
Jun3018
Jul3421
Aug3422
Sep3019
Oct2615
Nov2011
Dec178

How hot and cold Sig really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, Sig feels like about 35°C (around August 2). About 71 days a year carry some heat stress, peaking in August.

10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan161656
Feb171757
Mar202089
Apr22221111
May26261415
Jun30301818
Jul34342121
Aug35342222
Sep30301919
Oct26261515
Nov20201011
Dec171768

Average hourly temperature in Sig

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on August afternoons, near 34°C, and coldest before dawn in January, near C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Sig weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan16° / 438.19.95.6
Feb17° / 397.210.76.1
Mar20° / 43711.76.9
Apr22° / 11°406.512.97.5
May26° / 15°274.313.87.9
Jun30° / 18°71.414.46.3
Jul34° / 21°10.114.24.2
Aug34° / 22°60.813.34.0
Sep30° / 19°193.712.26.0
Oct26° / 15°325.511.17.7
Nov20° / 11°517.410.16.9
Dec17° / 386.79.66.2

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Sig gets about 345 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.

The wetter season lasts 7.2 months, from around Oct 2 to May 9, peaking in January at about 29% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 22.

November is the wettest month by volume, with 51 mm over about 7 wet days; July is the driest, with 1 mm.

0%10%20%30%40%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetJan 25 · 29%Jul 22 · 0%
Rain on a day (%)Rain days
Jan258
Feb267
Mar237
Apr227
May144
Jun41
Jul10
Aug31
Sep114
Oct196
Nov247
Dec227

Monthly rainfall

Over a full year, Sig collects about 345 mm of rain across 59 wet days — roughly 29 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 51 mm, while July is the driest at just 1 mm. The three wettest months alone bring about 40% of the year’s total.

0255075JanFebMarAprMayJunJulAugSepOctNovDec433943402771619325138
Rainfall (mm)Rain days
Jan438
Feb397
Mar437
Apr407
May274
Jun71
Jul10
Aug61
Sep194
Oct326
Nov517
Dec387

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Sig, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around May 26 and lasts for 3.7 months, ending around September 15. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 94% of the time on average.

The cloudier part of the year begins around September 16 and lasts for 8.3 months, ending around May 25. The cloudiest month is November, when it is overcast or mostly cloudy 38% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecJul 24 · 95%Nov 24 · 60%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan6436
Feb6535
Mar6436
Apr6733
May7129
Jun8515
Jul946
Aug928
Sep7525
Oct6634
Nov6238
Dec6337

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 11, brings about 14 h 24 min of light; the shortest, around January 1, only 9 h 36 min — a swing of roughly 4 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.98:156:05
Feb10.77:556:35
Mar11.77:197:02
Apr12.96:347:28
May13.86:017:53
Jun14.45:498:13
Jul14.26:018:12
Aug13.36:247:45
Sep12.26:487:02
Oct11.17:136:18
Nov10.17:435:49
Dec9.68:095:45

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Sig averages about 17 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 13 and 27 days.

The sunnier stretch runs 3.6 months, from around May 27 to Sep 14. The sunniest month is July, with roughly 27 sunny days (brilliant).

The greyest month is November, down near 13 sunny days — about 49% fewer than the July peak.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 2427 daysNov 2413 days
Sunny daysSky
Jan14Mixed
Feb14Mixed
Mar14Mixed
Apr15Mixed
May16Bright
Jun22Bright
Jul27Brilliant
Aug26Brilliant
Sep18Bright
Oct15Mixed
Nov13Mixed
Dec14Mixed

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Sig, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.4 months, from around June 2 to October 14. The muggiest month is August, when the air feels humid, muggy or worse about 73% of the time.

The most comfortable stretch runs from around October 15 to June 1, and February is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecFeb 26 · 100%Aug 12 · 26%oppressivemuggycomfortablehumiddrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan1000000
Feb1000000
Mar973000
Apr8713000
May62271110
Jun313226110
Jul132132304
Aug918293312
Sep162833212
Oct43351920
Nov8810100
Dec991000

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in Sig is steady company: average speeds sit near 8 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeApr 3 · 9 km/hAug 23 · 7 km/h
Wind speed (km/h)Feels
Jan9calm
Feb9calm
Mar9calm
Apr9calm
May8calm
Jun8calm
Jul7calm
Aug7calm
Sep7calm
Oct7calm
Nov8calm
Dec9calm

Hazard calendar for Sig

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

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

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

Best time to visit Sig

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Sig throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around early March, Sig is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best times of year to visit Sig for general outdoor tourist activities run from late February to mid June and again from late September to late November, with a peak score in the second week of May.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationMay 8 · 8.0

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan5.6good
Feb6.0good
Mar6.9good
Apr7.5good
May7.9ideal
Jun6.3good
Jul4.3fair
Aug4.0fair
Sep6.0good
Oct7.6ideal
Nov7.0good
Dec6.2good

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Sig for hot-weather activities is from early May to late October, with a peak score in the second week of June.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJun 12 · 8.8

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).

What to pack for Sig, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around August (highs near 34°C), the essentials are light clothes and sun protection. In the cold season around January (highs near 16°C), pack a warm layer and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Sig sees daytime highs around 34°C and nights near 22°C. Pack light clothes and sun protection.

Sea temperature near Sig

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 39 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 7 to Nov 1 — about 4.9 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar16Cool
Apr17Cool
May18Cool
Jun21Refreshing
Jul23Refreshing
Aug25Warm
Sep24Refreshing
Oct21Refreshing
Nov19Cool
Dec17Cool

UV index (midday) in Sig by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Sig peaks around July 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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 highHighModerateJul 18UV 9Dec 19UV 2
UV index (midday)Level
Jan3Moderate
Feb3Moderate
Mar7High
Apr7High
May8Very high
Jun8Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Moderate

Average hourly UV index in Sig

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in July the burn window is concentrated in the middle of the day: about 8 hours a day reach index 3 (protection recommended), and 5.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan00
Feb30
Mar62.5
Apr73
May84.5
Jun85
Jul85.5
Aug7.55
Sep6.53.5
Oct50
Nov20
Dec00

Air quality in Sig by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Sig is worst in September — around 31 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1530 µg/m³May 2321 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb26Moderate
Mar30Moderate
Apr25Moderate
May21Moderate
Jun21Moderate
Jul26Moderate
Aug28Moderate
Sep31Moderate
Oct27Moderate
Nov23Moderate
Dec23Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Sig is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan980
Feb990
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec990

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Sig banks about 3,258 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan41
Feb58
Mar132
Apr196
May314
Jun428
Jul544
Aug552
Sep431
Oct319
Nov163
Dec79

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Sig receives about 5.2 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.5 and 7.7 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Mar 20 to Sep 22. The brightest month is June, averaging about 7.6 kWh/m² (intense).

The dimmest month is December, down near 2.5 kWh/m² — roughly 67% less than the June peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 267.7 kWhDec 162.5 kWh
Solar energy (kWh/m²)Level
Jan2.9Moderate
Feb3.8Moderate
Mar5.0Bright
Apr6.2Intense
May7.0Intense
Jun7.6Intense
Jul7.6Intense
Aug6.9Intense
Sep5.5Bright
Oct4.2Bright
Nov3.0Moderate
Dec2.5Moderate

Where is Sig?

Sig sits at 35.5°N, 0.2°W, 62 m above sea level, in Algeria. The nearest listed city is Mohammadia, 25 km away.

Topography around Sig

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

Within 3 km, the terrain around Sig has significant variations in elevation — a maximum elevation change of 384 m around an average of 98 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 738 m; within 80 km, large variations in elevation — a maximum elevation change of 1,197 m.

The land around Sig is covered by grassland (29%), cropland (23%) and trees (20%) within 3 km, grassland (41%) and cropland (33%) within 16 km, and cropland (42%), grassland (23%) and water (20%) within 80 km.

3 km
384 m
16 km
738 m
80 km
1,197 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Mohammadia 25 km · Bou Hanifia el Hamamat 27 km · Aïn el Bya 32 km · Sfizef 33 km · Sidi ech Chahmi 33 km · Assi Bou Nif 33 km · Mascara 34 km · ’Aïn el Berd 34 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 Sig (35.5283°, -0.1937°, elevation 62 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).