Climate and average weather in Oristano

In Oristano, the summers are humid, warm, dry, and clear and the winters are cool and partly cloudy.

Best: mid May to mid October

Over the course of the year, the temperature in Oristano typically varies from 8°C to 28°C, and is rarely below 4°C or above 32°C. August is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Oristano for warm-weather activities is from mid May to mid October.

Hottest
Aug
28°
Coldest
Jan
Wettest
Nov
102 mm
Driest
Jul
4 mm
Rain / yr
601 mm
81 wet days
Daylight
9.2–14.8 h
shortest–longest
Elevation
9 m
39.9°N
Clearest
Jul
13% cloud
Air quality
Good
PM10 26.5 µg/m³ · 2019

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Oristano 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 mid May to mid October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.3 months, from June 14 to September 21, with daily high temperatures above 24°C. The hottest month of the year in Oristano is August, with an average high of 28°C and low of 21°C.

The cool season lasts 4.1 months, from November 27 to March 31, with daily high temperatures below 16°C. The coldest month of the year in Oristano is January, with an average low of 8°C and high of 13°C.

Days typically run about 6°C warmer than nights year-round.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan138
Feb138
Mar159
Apr1711
May2114
Jun2518
Jul2720
Aug2821
Sep2519
Oct2216
Nov1812
Dec149

Average hourly temperature in Oristano

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 28°C, and coldest before dawn in January, near C.

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

Oristano 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
Jan13° / 668.99.53.9
Feb13° / 608.710.43.8
Mar15° / 558.111.74.9
Apr17° / 11°588.4135.9
May21° / 14°41614.27.3
Jun25° / 18°162.914.88.6
Jul27° / 20°40.914.58.7
Aug28° / 21°81.713.68.0
Sep25° / 19°385.112.38.0
Oct22° / 16°668.210.97.1
Nov18° / 12°10211.49.85.5
Dec14° / 8710.59.24.3

Chance of rain

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

Oristano gets about 601 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 7.4 months, from around Sep 27 to May 9, peaking in November at about 39% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 16.

November is the wettest month by volume, with 102 mm over about 11 wet days; July is the driest, with 4 mm.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetNov 28 · 39%Jul 16 · 3%
Rain on a day (%)Rain days
Jan299
Feb319
Mar268
Apr288
May206
Jun93
Jul31
Aug62
Sep175
Oct278
Nov3711
Dec3411

Monthly rainfall

Over a full year, Oristano collects about 601 mm of rain across 81 wet days — roughly 50 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 102 mm, while July is the driest at just 4 mm. The three wettest months alone bring about 42% of the year’s total.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec66605558411648386610287
Rainfall (mm)Rain days
Jan669
Feb609
Mar558
Apr588
May416
Jun163
Jul41
Aug82
Sep385
Oct668
Nov10211
Dec8711

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Oristano, 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 19 and lasts for 4.5 months, ending around October 2. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 95% of the time on average.

The cloudier part of the year begins around October 3 and lasts for 7.5 months, ending around May 18. The cloudiest month is December, when it is overcast or mostly cloudy 48% 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 15 · 96%Dec 25 · 49%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan5347
Feb5545
Mar6238
Apr6337
May6832
Jun8614
Jul955
Aug928
Sep7426
Oct6337
Nov5248
Dec5248

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 10, brings about 14 h 48 min of light; the shortest, around January 1, only 9 h 12 min — a swing of roughly 5 h 36 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.57:515:19
Feb10.47:275:53
Mar11.76:456:26
Apr13.05:546:57
May14.25:167:28
Jun14.85:017:50
Jul14.55:147:48
Aug13.65:427:17
Sep12.36:126:28
Oct10.96:435:38
Nov9.87:185:04
Dec9.27:464:57

Sunny days

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

Oristano averages about 16 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 9 and 28 days.

The sunnier stretch runs 4.3 months, from around May 19 to Sep 27. The sunniest month is July, with roughly 27 sunny days (brilliant).

The greyest month is November, down near 10 sunny days — about 64% fewer than the July peak.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 1928 daysNov 249 days
Sunny daysSky
Jan10Mixed
Feb9Mixed
Mar13Mixed
Apr13Mixed
May16Bright
Jun22Bright
Jul28Brilliant
Aug26Brilliant
Sep18Bright
Oct14Mixed
Nov10Mixed
Dec10Mixed

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 Oristano, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.7 months, from around May 29 to October 19. The muggiest month is August, when the air feels humid, muggy or worse about 89% of the time.

The most comfortable stretch runs from around October 20 to May 28, and January 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%JanFebMarAprMayJunJulAugSepOctNovDecJan 3 · 100%Aug 2 · 7%muggyhumidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan991000
Feb1000000
Mar991000
Apr8712000
May44441100
Jun83444140
Jul21439423
Aug01136475
Sep92838241
Oct29412640
Nov7719400
Dec973000

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.

Across the year, average wind speed in Oristano is typically light breeze, near 13 km/h, and varies little with the seasons.

The windier part of the year lasts 5.8 months, from around Oct 29 to Apr 23. The windiest month is December, averaging about 15 km/h (light breeze).

The calmer part of the year runs from around Apr 24 to Oct 28, with August the calmest month at about 10 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeDec 25 · 15 km/hAug 15 · 10 km/h
Wind speed (km/h)Feels
Jan14light breeze
Feb15light breeze
Mar14light breeze
Apr13light breeze
May12calm
Jun11calm
Jul11calm
Aug10calm
Sep11calm
Oct12calm
Nov14light breeze
Dec15light breeze

Hazard calendar for Oristano

In seasonPeak

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

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

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

Best time to visit Oristano

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early October, Oristano is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

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 time of year to visit Oristano for general outdoor tourist activities is from mid May to mid October, with a peak score in the last week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 27 · 8.9

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
Jan3.9fair
Feb3.9fair
Mar4.9fair
Apr5.9good
May7.3good
Jun8.6ideal
Jul8.7ideal
Aug8.1ideal
Sep8.0ideal
Oct7.1good
Nov5.5good
Dec4.3fair

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 Oristano for hot-weather activities is from mid June to mid September, with a peak score in the last week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 31 · 9.1

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 Oristano, 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 28°C), the essentials are light clothes and sun protection. In the cold season around January (highs near 13°C), pack a warm layer and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Oristano sees daytime highs around 28°C and nights near 21°C. Pack light clothes and sun protection.

Sea temperature near Oristano

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 19 km away) is warmest in August at about 25°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 7 to Oct 28 — about 4.7 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep23Refreshing
Oct21Refreshing
Nov18Cool
Dec16Cool

UV index (midday) in Oristano 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 Oristano 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 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 16UV 9Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr4Moderate
May7Very high
Jun8Very high
Jul9Very high
Aug7Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec1Low

Average hourly UV index in Oristano

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 8.5 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
Feb2.50
Mar50
Apr50
May73
Jun84
Jul8.55.5
Aug73.5
Sep5.50
Oct3.50
Nov00
Dec00
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Oristano 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
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

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. Oristano banks about 2,492 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

01,0002,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan18
Feb13
Mar63
Apr125
May233
Jun337
Jul428
Aug446
Sep356
Oct271
Nov145
Dec57

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.

Oristano receives about 4.7 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 1.8 and 7.6 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Mar 19 to Sep 20. The brightest month is July, averaging about 7.5 kWh/m² (intense).

The dimmest month is December, down near 1.9 kWh/m² — roughly 75% less than the July peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJul 27.6 kWhDec 191.8 kWh
Solar energy (kWh/m²)Level
Jan2.1Moderate
Feb3.1Moderate
Mar4.6Bright
Apr5.8Bright
May6.7Intense
Jun7.4Intense
Jul7.5Intense
Aug6.6Intense
Sep5.0Bright
Oct3.6Moderate
Nov2.3Moderate
Dec1.9Dim

Where is Oristano?

Oristano sits at 39.9°N, 8.6°E, 9 m above sea level, in Italy. The nearest listed city is Iglesias, 66 km away.

IglesiasAsseminiAlgheroNuoroSestuCarboniaSinnaiMonserrato

Topography around Oristano

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

Within 3 km, the terrain around Oristano has only modest variations in elevation — a maximum elevation change of 23 m around an average of 6 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 627 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,816 m.

The land around Oristano is covered by cropland (38%), grassland (26%) and artificial surfaces (21%) within 3 km, cropland (35%), grassland (23%) and water (22%) within 16 km, and trees (34%), water (28%) and grassland (20%) within 80 km.

3 km
23 m
16 km
627 m
80 km
1,816 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
Nearby: Iglesias 66 km · Assemini 76 km · Alghero 77 km · Nuoro 78 km · Sestu 80 km · Carbonia 82 km · Sinnai 85 km · Monserrato 86 km

Italy travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
230 V · 50 Hz
Prices
≈ 69% of US
price level, 2025
GDP per capita
$43,309
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
0.6
per 100k, 2023
Road deaths
5.3
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 513
Religion
Christian 81%unaffiliated 13%Muslim 5%other 1%

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 Oristano (39.9036°, 8.5926°, elevation 9 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).