Climate and average weather in Amposta

In Amposta, the summers are hot, fairly dry, and mostly clear and the winters are cool and mostly clear.

Best: late April to early November

Over the course of the year, the temperature in Amposta typically varies from 6°C to 28°C, and is rarely below 2°C or above 31°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 Amposta for warm-weather activities is from late April to early November.

Hottest
Aug
28°
Coldest
Jan
Wettest
Oct
67 mm
Driest
Jul
21 mm
Rain / yr
532 mm
74 wet days
Daylight
9.1–14.9 h
shortest–longest
Elevation
11 m
40.7°N
Clearest
Jul
27% cloud

Amposta is capital town of the municipality of Amposta, Spain.

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

Amposta 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 April to early November.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Amposta, 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 12 to September 19, with daily high temperatures above 24°C. The hottest month of the year in Amposta is August, with an average high of 28°C and low of 21°C.

The cool season lasts 3.7 months, from November 19 to March 12, with daily high temperatures below 16°C. The coldest month of the year in Amposta is January, with an average low of 6°C and high of 13°C.

Days typically run about 7°C warmer than nights year-round.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan136
Feb136
Mar168
Apr1810
May2113
Jun2517
Jul2820
Aug2821
Sep2518
Oct2114
Nov169
Dec136

Average hourly temperature in Amposta

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

Amposta 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° / 445.99.43.9
Feb13° / 314.710.44.5
Mar16° / 436.111.75.5
Apr18° / 10°55813.16.2
May21° / 13°557.514.27.0
Jun25° / 17°274.814.98.0
Jul28° / 20°213.614.67.6
Aug28° / 21°335.713.67.0
Sep25° / 18°667.812.37.4
Oct21° / 14°677.710.97.0
Nov16° / 516.19.75.7
Dec13° / 425.79.14.2

Chance of rain

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

Amposta gets about 532 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 2.5 months, from around Mar 21 to Jun 5, peaking in April at about 28% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 21.

October is the wettest month by volume, with 67 mm over about 8 wet days; July is the driest, with 21 mm.

0%10%20%30%40%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetApr 20 · 28%Jul 21 · 10%
Rain on a day (%)Rain days
Jan196
Feb175
Mar206
Apr268
May258
Jun175
Jul114
Aug186
Sep258
Oct258
Nov216
Dec186

Monthly rainfall

Over a full year, Amposta collects about 532 mm of rain across 74 wet days — roughly 44 mm in an average month.

It doesn’t fall evenly. October is the wettest month with 67 mm, while July is the driest at just 21 mm. The three wettest months alone bring about 35% of the year’s total.

0255075100JanFebMarAprMayJunJulAugSepOctNovDec443143555527213366675142
Rainfall (mm)Rain days
Jan446
Feb315
Mar436
Apr558
May558
Jun275
Jul214
Aug336
Sep668
Oct678
Nov516
Dec426

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Amposta, 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 June 7 and lasts for 3.3 months, ending around September 14. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 88% of the time on average.

The cloudier part of the year begins around September 15 and lasts for 8.7 months, ending around June 6. The cloudiest month is October, when it is overcast or mostly cloudy 41% 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 20 · 90%Oct 19 · 57%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan6436
Feb6535
Mar6337
Apr6040
May6139
Jun7525
Jul8812
Aug8020
Sep6832
Oct5941
Nov6238
Dec6139

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 54 min of light; the shortest, around January 1, only 9 h 06 min — a swing of roughly 5 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.48:255:49
Feb10.48:016:24
Mar11.77:176:57
Apr13.16:257:30
May14.25:468:02
Jun14.95:318:25
Jul14.65:448:23
Aug13.66:137:51
Sep12.36:447:00
Oct10.97:166:10
Nov9.77:525:34
Dec9.18:215:27

Sunny days

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

Amposta averages about 16 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 11 and 23 days.

The sunnier stretch runs 2.9 months, from around Jun 10 to Sep 4. The sunniest month is July, with roughly 22 sunny days (bright).

The greyest month is May, down near 13 sunny days — about 41% fewer than the July peak.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 1923 daysMay 311 days
Sunny daysSky
Jan16Bright
Feb15Bright
Mar15Mixed
Apr13Mixed
May14Mixed
Jun18Bright
Jul23Bright
Aug19Bright
Sep15Bright
Oct13Mixed
Nov14Mixed
Dec15Mixed

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

The more humid part of the year lasts 4.4 months, from around June 3 to October 13. The muggiest month is July, when the air feels humid, muggy or worse about 72% of the time.

The most comfortable stretch runs from around October 14 to June 2, and April 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%JanFebMarAprMayJunJulAugSepOctNovDecApr 6 · 100%Jul 30 · 21%oppressivemuggyhumidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan1000000
Feb1000000
Mar1000000
Apr973000
May6430600
Jun263034110
Jul121626415
Aug1114204214
Sep302126212
Oct53271820
Nov909100
Dec1000000

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 Amposta is typically calm, near 11 km/h, and varies little with the seasons.

The windier part of the year lasts 5.9 months, from around Nov 2 to May 1. The windiest month is January, averaging about 12 km/h (light breeze).

The calmer part of the year runs from around May 2 to Nov 1, with August the calmest month at about 10 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeJan 31 · 13 km/hAug 23 · 10 km/h
Wind speed (km/h)Feels
Jan12light breeze
Feb13light breeze
Mar12light breeze
Apr12calm
May11calm
Jun10calm
Jul10calm
Aug10calm
Sep10calm
Oct10calm
Nov12light breeze
Dec12calm

Best time to visit Amposta

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late October, Amposta 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 Amposta for general outdoor tourist activities is from late April to early November, with a peak score in the last week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 23 · 8.1

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
Feb4.5fair
Mar5.5good
Apr6.2good
May7.0good
Jun8.0ideal
Jul7.6ideal
Aug7.1good
Sep7.4good
Oct7.0good
Nov5.7good
Dec4.2fair

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 Amposta 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 23 · 8.6

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 Amposta, 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.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Amposta sees daytime highs around 28°C and nights near 21°C. Pack light clothes and sun protection. About 6 days see rain.

Sea temperature near Amposta

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

The sea offshore is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 3 to Oct 30 — about 4.9 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov18Cool
Dec15Cool

UV index (midday) in Amposta 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 Amposta peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 14UV 9Dec 19UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5High
Apr7High
May6High
Jun9Very high
Jul10Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec2Low

Average hourly UV index in Amposta

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
Feb00
Mar50
Apr6.52.5
May72.5
Jun8.55.5
Jul8.55.5
Aug7.54.5
Sep61.5
Oct3.50
Nov00
Dec00
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Amposta 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
Feb980
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. Amposta banks about 2,259 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

05001,0001,5002,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb1
Mar53
Apr113
May223
Jun337
Jul434
Aug443
Sep338
Oct230
Nov82
Dec4

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.

Amposta receives about 4.7 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.0 and 7.3 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Mar 17 to Sep 18. The brightest month is June, averaging about 7.2 kWh/m² (intense).

The dimmest month is December, down near 2.0 kWh/m² — roughly 72% less than the June peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 267.3 kWhDec 182.0 kWh
Solar energy (kWh/m²)Level
Jan2.3Moderate
Feb3.3Moderate
Mar4.6Bright
Apr5.8Bright
May6.7Intense
Jun7.2Intense
Jul7.1Intense
Aug6.2Intense
Sep4.8Bright
Oct3.5Moderate
Nov2.5Moderate
Dec2.0Dim

Where is Amposta?

Amposta sits at 40.7°N, 0.6°E, 11 m above sea level, in Spain. The nearest listed city is Sant Carles de la Ràpita, 11 km away.

Topography around Amposta

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

Within 3 km, the terrain around Amposta has only modest variations in elevation — a maximum elevation change of 166 m around an average of 23 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 749 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,423 m.

The land around Amposta is covered by cropland (30%), trees (24%) and grassland (21%) within 3 km, trees (27%) and cropland (24%) within 16 km, and trees (34%) and water (33%) within 80 km.

3 km
166 m
16 km
749 m
80 km
1,423 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Sant Carles de la Ràpita 11 km · Tortosa 12 km · Vinaròs 28 km · Benicarló 35 km · Cambrils 57 km · Salou 62 km · La Pineda 65 km · Vila-seca 65 km

Spain travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$38,627
2025
Happiness
6.5 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
3.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 540
Religion
Roman Catholic 58%atheist 16%agnostic 11%non-believer 11%

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 Amposta (40.7099°, 0.5786°, elevation 11 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).