Climate and average weather in Rubí

In Rubí, the summers are humid, warm, 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 Rubí typically varies from 3°C to 28°C, and is rarely below -1°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 Rubí for warm-weather activities is from late April to early November.

Hottest
Aug
28°
Coldest
Jan
Wettest
Oct
90 mm
Driest
Feb
34 mm
Rain / yr
631 mm
93 wet days
Daylight
9.0–15.0 h
shortest–longest
Elevation
145 m
41.5°N
Clearest
Jul
34% cloud

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

Air quality
Good
PM10 21 µg/m³ · 2019

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

Rubí 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 Rubí, 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 10 to September 16, with daily high temperatures above 24°C. The hottest month of the year in Rubí is August, with an average high of 28°C and low of 19°C.

The cool season lasts 3.6 months, from November 18 to March 8, with daily high temperatures below 16°C. The coldest month of the year in Rubí is January, with an average low of 3°C and high of 12°C.

Days typically run about 9°C warmer than nights year-round.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan123
Feb144
Mar166
Apr188
May2112
Jun2516
Jul2819
Aug2819
Sep2516
Oct2112
Nov167
Dec134

Average hourly temperature in Rubí

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

Rubí 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
Jan12° / 386.19.33.8
Feb14° / 346.110.34.4
Mar16° / 447.211.75.5
Apr18° / 619.513.16.0
May21° / 12°558.714.36.8
Jun25° / 16°426.814.97.6
Jul28° / 19°345.814.77.3
Aug28° / 19°507.913.76.8
Sep25° / 16°8711.612.36.7
Oct21° / 12°9010.510.96.4
Nov16° / 587.39.75.5
Dec13° / 395.79.14.1

Chance of rain

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

Rubí gets about 631 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 2.7 months, from around Aug 20 to Nov 9, peaking in September at about 38% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 1.

October is the wettest month by volume, with 90 mm over about 11 wet days; February is the driest, with 34 mm.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetSep 15 · 38%Jan 1 · 16%
Rain on a day (%)Rain days
Jan206
Feb226
Mar237
Apr3110
May299
Jun237
Jul196
Aug268
Sep3812
Oct3411
Nov247
Dec196

Monthly rainfall

Over a full year, Rubí collects about 631 mm of rain across 93 wet days — roughly 53 mm in an average month.

It doesn’t fall evenly. October is the wettest month with 90 mm, while February is the driest at just 34 mm. The three wettest months alone bring about 38% of the year’s total.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec383444615542345087905839
Rainfall (mm)Rain days
Jan386
Feb346
Mar447
Apr6110
May559
Jun427
Jul346
Aug508
Sep8712
Oct9011
Nov587
Dec396

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Rubí, 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 8 and lasts for 2.8 months, ending around September 1. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 80% of the time on average.

The cloudier part of the year begins around September 2 and lasts for 4.0 months, ending around January 2. The cloudiest month is October, when it is overcast or mostly cloudy 47% 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 · 83%Oct 18 · 52%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan6139
Feb6040
Mar5941
Apr5644
May5644
Jun6832
Jul8020
Aug7426
Sep5842
Oct5347
Nov5842
Dec5842

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 13, brings about 15 hours of light; the shortest, around January 1, only 9 hours — a swing of roughly 6 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.38:225:40
Feb10.37:566:17
Mar11.77:126:51
Apr13.16:197:25
May14.35:387:58
Jun14.95:238:22
Jul14.75:368:19
Aug13.76:067:46
Sep12.36:386:54
Oct10.97:116:03
Nov9.77:485:26
Dec9.18:185:18

Sunny days

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

Rubí averages about 13 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 10 and 20 days.

The sunnier stretch runs 2.6 months, from around Jun 11 to Aug 29. The sunniest month is July, with roughly 19 sunny days (bright).

The greyest month is April, down near 11 sunny days — about 41% fewer than the July peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 2420 daysApr 2910 days
Sunny daysSky
Jan14Mixed
Feb12Mixed
Mar13Mixed
Apr11Mixed
May11Mixed
Jun15Mixed
Jul19Bright
Aug16Bright
Sep12Mixed
Oct11Mixed
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 Rubí, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.1 months, from around June 8 to October 9. The muggiest month is July, when the air feels humid, muggy or worse about 88% of the time.

The most comfortable stretch runs from around October 10 to June 7, 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 10 · 100%Jul 30 · 5%muggycomfortablehumiddrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan1000000
Feb1000000
Mar1000000
Apr972000
May6431500
Jun14403870
Jul21144423
Aug1732546
Sep152438221
Oct47331810
Nov918100
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.

Wind in Rubí 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 12 · 9 km/hSep 26 · 7 km/h
Wind speed (km/h)Feels
Jan8calm
Feb9calm
Mar9calm
Apr9calm
May8calm
Jun8calm
Jul8calm
Aug7calm
Sep7calm
Oct7calm
Nov8calm
Dec8calm

Best time to visit Rubí

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late October, Rubí 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 Rubí 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 25 · 7.7

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
Feb4.4fair
Mar5.5fair
Apr6.0good
May6.8good
Jun7.5ideal
Jul7.3good
Aug6.8good
Sep6.7good
Oct6.4good
Nov5.4fair
Dec4.1fair

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

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 25 · 8.1

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 Rubí, 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 12°C), pack a warm layer.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Rubí sees daytime highs around 28°C and nights near 19°C. Pack light clothes. Worth having: sun protection. About 8 days see rain.

Sea temperature near Rubí

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 31 km away) is warmest in August at about 25°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 11 to Oct 23 — about 4.4 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr14Bracing
May17Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep24Refreshing
Oct21Refreshing
Nov17Cool
Dec15Bracing

UV index (midday) in Rubí 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 Rubí peaks around July 15 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 15UV 9Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr7High
May6High
Jun8Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Average hourly UV index in Rubí

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
Feb0.50
Mar4.50
Apr6.52.5
May72
Jun85
Jul8.55.5
Aug7.54
Sep60
Oct2.50
Nov00
Dec00
Almanac & agriculture

Growing season

Chance of a frost-free dayReliably frost-free (≥90%)

Rubí is mild enough that a frost-free day stays more likely than not even in midwinter. Nights are reliably above freezing from about February 14 to December 15 (305 days); outside that window a hard frost is an occasional risk.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecreliably frost-freeFeb 1490%Dec 1590%
Frost-free chance (%)Frost nights
Jan8531
Feb9120
Mar990
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov980
Dec8917

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. Rubí banks about 2,031 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
Feb0
Mar31
Apr94
May206
Jun316
Jul409
Aug415
Sep309
Oct201
Nov50
Dec0

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.

Rubí receives about 4.4 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 1.8 and 7.0 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Mar 16 to Sep 16. The brightest month is June, averaging about 6.9 kWh/m² (intense).

The dimmest month is December, down near 1.9 kWh/m² — roughly 73% less than the June peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 257.0 kWhDec 181.8 kWh
Solar energy (kWh/m²)Level
Jan2.2Moderate
Feb3.1Moderate
Mar4.4Bright
Apr5.5Bright
May6.4Intense
Jun6.9Intense
Jul6.8Intense
Aug5.9Bright
Sep4.5Bright
Oct3.2Moderate
Nov2.3Moderate
Dec1.9Dim

Where is Rubí?

Rubí sits at 41.5°N, 2.0°E, 145 m above sea level, in Spain. The nearest listed city is Sant Cugat del Vallès, 5.0 km away.

Topography around Rubí

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

Within 3 km, the terrain around Rubí has only modest variations in elevation — a maximum elevation change of 204 m around an average of 159 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 991 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,273 m.

The land around Rubí is covered by trees (41%) and artificial surfaces (37%) within 3 km, trees (53%) and artificial surfaces (29%) within 16 km, and trees (44%) and water (29%) within 80 km.

3 km
204 m
16 km
991 m
80 km
2,273 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Sant Cugat del Vallès 5.0 km · Sant Quirze del Vallès 6.0 km · Sant Andreu de la Barca 7.0 km · Barberà del Vallès 8.0 km · Terrassa 8.0 km · Molins de Rei 9.0 km · Sabadell 9.0 km · Martorell 9.0 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 Rubí (41.4923°, 2.033°, elevation 145 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).