Climate and average weather in Vermoim

In Vermoim, the summers are warm, fairly dry, and mostly clear and the winters are cool and partly cloudy.

Best: late May to early October

Over the course of the year, the temperature in Vermoim typically varies from 7°C to 26°C, and is rarely below 3°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 Vermoim for warm-weather activities is from late May to early October.

Hottest
Aug
26°
Coldest
Jan
Wettest
Dec
167 mm
Driest
Jul
23 mm
Rain / yr
1248 mm
114 wet days
Daylight
9.0–15.0 h
shortest–longest
Elevation
77 m
41.2°N
Clearest
Jul
29% cloud

Vermoim 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 May to early October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.4 months, from June 12 to September 23, with daily high temperatures above 22°C. The hottest month of the year in Vermoim is August, with an average high of 26°C and low of 17°C.

The cool season lasts 3.6 months, from November 19 to March 6, with daily high temperatures below 15°C. The coldest month of the year in Vermoim is January, with an average low of 7°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)
Jan137
Feb147
Mar169
Apr1710
May2013
Jun2315
Jul2517
Aug2617
Sep2316
Oct2013
Nov1610
Dec138

Average hourly temperature in Vermoim

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 26°C, and coldest before dawn in January, near C.

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

Vermoim 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° / 15012.29.43.3
Feb14° / 1039.510.34.0
Mar16° / 12110.211.75.1
Apr17° / 10°12111.813.15.5
May20° / 13°10111.214.36.3
Jun23° / 15°406.314.97.6
Jul25° / 17°23414.78.4
Aug26° / 17°304.513.78.2
Sep23° / 16°646.612.37.7
Oct20° / 13°16612.710.96.0
Nov16° / 10°16312.99.74.5
Dec13° / 16712.49.13.6

Chance of rain

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

Vermoim gets about 1248 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 5.2 months, from around Oct 3 to Mar 8, peaking in October at about 47% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 22.

December is the wettest month by volume, with 167 mm over about 12 wet days; July is the driest, with 23 mm.

0%10%20%30%40%50%60%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetOct 25 · 47%Jul 22 · 11%
Rain on a day (%)Rain days
Jan4012
Feb3410
Mar3310
Apr3912
May3611
Jun226
Jul134
Aug145
Sep237
Oct4113
Nov4213
Dec4012

Monthly rainfall

Over a full year, Vermoim collects about 1248 mm of rain across 114 wet days — roughly 104 mm in an average month.

It doesn’t fall evenly. December is the wettest month with 167 mm, while July is the driest at just 23 mm. The three wettest months alone bring about 40% of the year’s total.

0255075100125150175200JanFebMarAprMayJunJulAugSepOctNovDec15010312112110140233064166163167
Rainfall (mm)Rain days
Jan15012
Feb10310
Mar12110
Apr12112
May10111
Jun406
Jul234
Aug305
Sep647
Oct16613
Nov16313
Dec16712

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Vermoim, 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 24 and lasts for 4.4 months, ending around October 5. 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 October 6 and lasts for 7.6 months, ending around May 23. The cloudiest month is December, when it is overcast or mostly cloudy 57% 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 23 · 84%Nov 1 · 40%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan4654
Feb4951
Mar5248
Apr5149
May5545
Jun6535
Jul8020
Aug7921
Sep6832
Oct5050
Nov4555
Dec4357

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 16, brings about 15 hours of light; the shortest, around December 15, only 9 hours — a swing of roughly 6 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.48:045:24
Feb10.37:386:00
Mar11.76:546:34
Apr13.16:027:08
May14.35:227:40
Jun14.95:068:03
Jul14.75:198:01
Aug13.75:497:28
Sep12.36:216:37
Oct10.96:535:46
Nov9.77:305:09
Dec9.17:595:02

Sunny days

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

Vermoim averages about 13 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 8 and 22 days.

The sunnier stretch runs 4.0 months, from around Jun 3 to Oct 1. The sunniest month is July, with roughly 20 sunny days (bright).

The greyest month is October, down near 10 sunny days — about 49% fewer than the July peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 2722 daysOct 308 days
Sunny daysSky
Jan10Mixed
Feb10Mixed
Mar11Mixed
Apr10Mixed
May11Mixed
Jun14Mixed
Jul21Bright
Aug21Bright
Sep15Bright
Oct10Mixed
Nov9Mixed
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 Vermoim, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.2 months, from around June 6 to October 11. The muggiest month is July, when the air feels humid, muggy or worse about 55% of the time.

The most comfortable stretch runs from around October 12 to June 5, 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 7 · 100%Jul 25 · 37%humiddrycomfortablecomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan98200
Feb99100
Mar98200
Apr92800
May652950
Jun2846252
Jul936496
Aug933526
Sep2044351
Oct4837140
Nov841320
Dec95500

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 Vermoim is steady company: average speeds sit near 11 km/hcalm — in every month of the year, with no meaningful windy or calm season.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeDec 26 · 12 km/hSep 5 · 10 km/h
Wind speed (km/h)Feels
Jan12calm
Feb11calm
Mar11calm
Apr12calm
May11calm
Jun11calm
Jul10calm
Aug10calm
Sep10calm
Oct11calm
Nov11calm
Dec12calm

Hazard calendar for Vermoim

In seasonPeak

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

Vermoim's rainy season runs October–May, 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 Vermoim

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late September, Vermoim 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 Vermoim for general outdoor tourist activities is from late May to early October, with a peak score in the third week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 18 · 8.5

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
Jan3.4poor
Feb4.0fair
Mar5.1fair
Apr5.4fair
May6.3good
Jun7.6ideal
Jul8.4ideal
Aug8.2ideal
Sep7.6ideal
Oct6.0good
Nov4.6fair
Dec3.6fair

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

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 29 · 7.8

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 Vermoim, 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 26°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, Vermoim sees daytime highs around 26°C and nights near 17°C. Pack sun protection. Worth having: light clothes. About 5 days see rain.

Sea temperature near Vermoim

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 13 km away) is warmest in September at about 17°C and coldest in February near 13°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

12°14°16°18°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr14Bracing
May16Cool
Jun17Cool
Jul17Cool
Aug17Cool
Sep17Cool
Oct17Cool
Nov16Cool
Dec14Bracing

UV index (midday) in Vermoim 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 Vermoim peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 23UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7High
Jun9Very high
Jul9Very high
Aug8Very high
Sep5High
Oct4Moderate
Nov2Moderate
Dec2Low

Average hourly UV index in Vermoim

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 June the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 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
Apr6.51.5
May7.53
Jun8.55
Jul85
Aug7.54
Sep5.50
Oct40
Nov00
Dec00

Air quality in Vermoim 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 Vermoim is worst in August — around 25 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodAug 2425 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar14Moderate
Apr12Moderate
May8Good
Jun9Good
Jul9Good
Aug25Moderate
Sep24Moderate
Oct18Moderate
Nov7Good
Dec7Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Vermoim 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. Vermoim banks about 1,954 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
Feb11
Mar75
Apr116
May197
Jun273
Jul341
Aug352
Sep288
Oct203
Nov81
Dec15

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.

Vermoim receives about 4.5 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 1.6 and 7.3 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Mar 22 to Sep 23. The brightest month is July, averaging about 7.3 kWh/m² (intense).

The dimmest month is December, down near 1.7 kWh/m² — roughly 77% less than the July peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJul 127.3 kWhDec 251.6 kWh
Solar energy (kWh/m²)Level
Jan1.9Dim
Feb2.9Moderate
Mar4.2Bright
Apr5.4Bright
May6.4Intense
Jun7.1Intense
Jul7.3Intense
Aug6.5Intense
Sep4.9Bright
Oct3.2Moderate
Nov2.1Moderate
Dec1.6Dim

Where is Vermoim?

Vermoim sits at 41.2°N, 8.6°W, 77 m above sea level, in Portugal. The nearest listed city is Maia, 1.0 km away.

Topography around Vermoim

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

Within 3 km, the terrain around Vermoim has only modest variations in elevation — a maximum elevation change of 128 m around an average of 87 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 526 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,521 m.

The land around Vermoim is covered by artificial surfaces (39%) and trees (33%) within 3 km, trees (34%) and artificial surfaces (26%) within 16 km, and trees (41%), water (26%) and grassland (25%) within 80 km.

3 km
128 m
16 km
526 m
80 km
1,521 m
treesgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Maia 1.0 km · Leça do Bailio 4.0 km · Águas Santas 4.0 km · São Tiago de Custoias 5.0 km · Ermesinde 5.0 km · São Mamede de Infesta 6.0 km · Alfena 7.0 km · Senhora da Hora 7.0 km

Portugal travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E / F
230 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$32,082
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
95%
of population, 2024
Homicide rate
0.7
per 100k, 2022
Road deaths
8.2
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 612
Religion
Catholic 68%not applicable 13%no religion 12%no response 2%

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 Vermoim (41.2431°, -8.6065°, elevation 77 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).