Climate and average weather in Onda

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

Best: early March to mid November

Over the course of the year, the temperature in Onda typically varies from 5°C to 29°C, and is rarely below 0°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 Onda for warm-weather activities is from early March to mid November.

Hottest
Aug
29°
Coldest
Jan
Wettest
Oct
56 mm
Driest
Jul
16 mm
Rain / yr
482 mm
73 wet days
Daylight
9.2–14.8 h
shortest–longest
Elevation
192 m
40.0°N
Clearest
Jul
28% cloud

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

Air quality
Good
PM10 19.6 µg/m³ · 2019

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

Onda 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 early March to mid November.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.2 months, from June 12 to September 17, with daily high temperatures above 26°C. The hottest month of the year in Onda is August, with an average high of 29°C and low of 19°C.

The cool season lasts 3.7 months, from November 17 to March 9, with daily high temperatures below 17°C. The coldest month of the year in Onda is January, with an average low of 5°C and high of 14°C.

Days typically run about 10°C warmer than nights year-round.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan145
Feb155
Mar177
Apr199
May2313
Jun2617
Jul2919
Aug2919
Sep2616
Oct2213
Nov178
Dec145

Average hourly temperature in Onda

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 29°C, and coldest before dawn in January, near C.

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

Onda weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan14° / 3550.59.54.8
Feb15° / 294.70.510.45.3
Mar17° / 415.70.111.76.4
Apr19° / 538.30136.6
May23° / 13°527.7014.27.2
Jun26° / 17°345.4014.87.6
Jul29° / 19°163014.56.8
Aug29° / 19°336.2013.66.2
Sep26° / 16°568.4012.37.1
Oct22° / 13°567.2010.97.2
Nov17° / 435.609.86.3
Dec14° / 345.60.49.24.9

Chance of rain

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

Onda gets about 482 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 17 to Nov 7, peaking in September at about 29% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 18.

October is the wettest month by volume, with 56 mm over about 7 wet days; July is the driest, with 16 mm.

0%10%20%30%40%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetSep 3 · 29%Jul 18 · 9%
Rain on a day (%)Rain days
Jan165
Feb175
Mar196
Apr278
May258
Jun185
Jul103
Aug206
Sep278
Oct247
Nov196
Dec186

Monthly rainfall

Over a full year, Onda collects about 482 mm of rain across 73 wet days — roughly 40 mm in an average month.

It doesn’t fall evenly. October is the wettest month with 56 mm, while July is the driest at just 16 mm. The three wettest months alone bring about 34% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075JanFebMarAprMayJunJulAugSepOctNovDec352941535234163356564334
Rainfall (mm)Rain daysSnow days
Jan3551
Feb2951
Mar4160
Apr5380
May5280
Jun3450
Jul1630
Aug3360
Sep5680
Oct5670
Nov4360
Dec3460

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Onda, 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 4 and lasts for 3.2 months, ending around September 7. 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 8 and lasts for 8.8 months, ending around June 3. The cloudiest month is April, 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 · 89%May 2 · 55%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan6436
Feb6436
Mar6238
Apr5941
May6139
Jun7426
Jul8812
Aug7723
Sep6535
Oct6040
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 9, 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)
Jan9.58:275:54
Feb10.48:036:28
Mar11.77:207:01
Apr13.06:307:33
May14.25:518:03
Jun14.85:378:26
Jul14.55:498:24
Aug13.66:177:53
Sep12.36:487:03
Oct10.97:186:14
Nov9.87:545:39
Dec9.28:225:33

Sunny days

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

Onda averages about 15 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 10 and 23 days.

The sunnier stretch runs 2.6 months, from around Jun 11 to Aug 29. The sunniest month is July, with roughly 22 sunny days (bright).

The greyest month is May, down near 12 sunny days — about 44% fewer than the July peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 1923 daysMay 210 days
Sunny daysSky
Jan16Bright
Feb14Bright
Mar14Mixed
Apr12Mixed
May12Mixed
Jun17Bright
Jul22Bright
Aug18Bright
Sep13Mixed
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 Onda, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 3.8 months, from around June 9 to October 3. The muggiest month is August, when the air feels humid, muggy or worse about 78% of the time.

The most comfortable stretch runs from around October 4 to June 8, 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 29 · 100%Aug 1 · 17%muggyhumidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan1000000
Feb1000000
Mar1000000
Apr991000
May7621300
Jun33342940
Jul91940302
Aug71532434
Sep272533141
Oct63281000
Nov954000
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 Onda is typically calm, near 8 km/h, and varies little with the seasons.

The windier part of the year lasts 6.1 months, from around Oct 31 to May 4. The windiest month is January, averaging about 9 km/h (calm).

The calmer part of the year runs from around May 5 to Oct 30, with August the calmest month at about 7 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeJan 29 · 10 km/hAug 20 · 7 km/h
Wind speed (km/h)Feels
Jan9calm
Feb10calm
Mar9calm
Apr9calm
May8calm
Jun7calm
Jul7calm
Aug7calm
Sep7calm
Oct8calm
Nov9calm
Dec9calm

Best time to visit Onda

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid November, Onda 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 Onda for general outdoor tourist activities is from early March to mid November, with a peak score in the third week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 21 · 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
Jan4.8fair
Feb5.3fair
Mar6.3good
Apr6.5good
May7.2good
Jun7.6ideal
Jul6.8good
Aug6.3good
Sep7.1good
Oct7.2good
Nov6.3good
Dec4.9fair

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

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 18 · 8.7

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 Onda, 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 29°C), the essentials are light clothes and sun protection. In the cold season around January (highs near 14°C), pack a warm layer.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Onda sees daytime highs around 29°C and nights near 19°C. Pack light clothes and sun protection. About 6 days see rain.

Sea temperature near Onda

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 15 km away) is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 1 to Nov 2 — about 5.1 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb14Bracing
Mar14Bracing
Apr16Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index (midday) in Onda 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 Onda peaks around July 15 at about 10 (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 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 15UV 10Dec 19UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar6High
Apr7Very high
May6High
Jun9Very high
Jul10Very high
Aug9Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Low

Average hourly UV index in Onda

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
Feb1.50
Mar5.50
Apr73
May72.5
Jun8.55.5
Jul8.55.5
Aug7.54.5
Sep62
Oct3.50
Nov00
Dec00
Almanac & agriculture

Growing season

Chance of a frost-free day

Onda is mild enough that a frost-free day stays more likely than not even in midwinter.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDec
Frost-free chance (%)Frost nights
Jan910
Feb950
Mar990
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov990
Dec960

Growing degree days

Degree days (base 10°C)

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. Onda banks about 2,303 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)
Jan0
Feb5
Mar65
Apr127
May235
Jun343
Jul438
Aug442
Sep335
Oct226
Nov82
Dec5

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.

Onda receives about 4.7 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.1 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 7.1 kWh/m² (intense).

The dimmest month is December, down near 2.1 kWh/m² — roughly 70% less than the June peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 297.3 kWhDec 162.1 kWh
Solar energy (kWh/m²)Level
Jan2.4Moderate
Feb3.4Moderate
Mar4.6Bright
Apr5.9Bright
May6.6Intense
Jun7.2Intense
Jul7.1Intense
Aug6.2Intense
Sep4.8Bright
Oct3.6Moderate
Nov2.6Moderate
Dec2.1Moderate

Where is Onda?

Onda sits at 40.0°N, 0.3°W, 192 m above sea level, in Spain. The nearest listed city is Vila-real, 14 km away.

Topography around Onda

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

Within 3 km, the terrain around Onda has significant variations in elevation — a maximum elevation change of 469 m around an average of 206 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,084 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,022 m.

The land around Onda is covered by trees (59%) within 3 km, trees (66%) within 16 km, and trees (35%) and water (27%) within 80 km.

3 km
469 m
16 km
1,084 m
80 km
2,022 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Vila-real 14 km · Almassora 17 km · Burriana 17 km · Castelló de la Plana 18 km · Moncofa 20 km · El Grao 23 km · Benicàssim 29 km · Sagunto 31 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 Onda (39.965°, -0.2604°, elevation 192 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).