Climate and average weather in Caldes de Montbui
In Caldes de Montbui, the summers are warm, showery, and mostly clear and the winters are cool, snowy, and mostly clear.
Over the course of the year, the temperature in Caldes de Montbui typically varies from 1°C to 28°C, and is rarely below -3°C or above 32°C. July is the hottest month of the year, while January is the coldest.
Based on the travel score, the best time of year to visit Caldes de Montbui for warm-weather activities is from early May to late October.
- Hottest
- Jul
- 28°
- Coldest
- Jan
- 1°
- Wettest
- Oct
- 101 mm
- Driest
- Feb
- 40 mm
- Rain / yr
- 788 mm
- 107 wet days
- Daylight
- 9.0–15.0 h
- shortest–longest
- Elevation
- 232 m
- 41.6°N
- Clearest
- Jul
- 39% cloud
Caldes de Montbui is capital town of the municipality of Caldes de Montbui, Spain.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Caldes de Montbui 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 May to late October.
Temperature through the year
Daily average highs and lows in Caldes de Montbui, 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 10 to September 13, with daily high temperatures above 24°C. The hottest month of the year in Caldes de Montbui is July, with an average high of 28°C and low of 17°C.
The cool season lasts 3.6 months, from November 17 to March 6, with daily high temperatures below 14°C. The coldest month of the year in Caldes de Montbui is January, with an average low of 1°C and high of 11°C.
Days typically run about 10°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 11 | 12 | 15 | 17 | 21 | 25 | 28 | 28 | 24 | 20 | 15 | 11 |
| Avg low (°C) | 1 | 2 | 4 | 7 | 10 | 14 | 17 | 17 | 14 | 10 | 5 | 2 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 11 | 1 |
| Feb | 12 | 2 |
| Mar | 15 | 4 |
| Apr | 17 | 7 |
| May | 21 | 10 |
| Jun | 25 | 14 |
| Jul | 28 | 17 |
| Aug | 28 | 17 |
| Sep | 24 | 14 |
| Oct | 20 | 10 |
| Nov | 15 | 5 |
| Dec | 11 | 2 |
How hot and cold Caldes de Montbui really feels
The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.
On the coldest nights, wind chill pulls the feels-like down to about -1°C (around January 4), with roughly 62 freezing days a year (feels-like at or below 0°C), worst in January.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | 11 | 12 | 15 | 17 | 21 | 25 | 28 | 28 | 24 | 20 | 14 | 11 |
| Air high (°C) | 11 | 12 | 15 | 17 | 21 | 25 | 28 | 28 | 24 | 20 | 15 | 11 |
| Feels-like low (°C) | -1 | 0 | 3 | 5 | 10 | 14 | 17 | 17 | 14 | 10 | 4 | 0 |
| Air low (°C) | 1 | 2 | 4 | 7 | 10 | 14 | 17 | 17 | 14 | 10 | 5 | 2 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 11 | 11 | -1 | 1 |
| Feb | 12 | 12 | 0 | 2 |
| Mar | 15 | 15 | 3 | 4 |
| Apr | 17 | 17 | 5 | 7 |
| May | 21 | 21 | 10 | 10 |
| Jun | 25 | 25 | 14 | 14 |
| Jul | 28 | 28 | 17 | 17 |
| Aug | 28 | 28 | 17 | 17 |
| Sep | 24 | 24 | 14 | 14 |
| Oct | 20 | 20 | 10 | 10 |
| Nov | 14 | 15 | 4 | 5 |
| Dec | 11 | 11 | 0 | 2 |
Average hourly temperature in Caldes de Montbui
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 July afternoons, near 28°C, and coldest before dawn in January, near 1°C.
Caldes de Montbui weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 11° / 1° | 44 | 6.2 | 0.5 | 9.3 | 3.0 |
| Feb | 12° / 2° | 40 | 6.9 | 1.1 | 10.3 | 3.6 |
| Mar | 15° / 4° | 56 | 8.7 | 0.3 | 11.7 | 4.9 |
| Apr | 17° / 7° | 82 | 11.4 | 0 | 13.1 | 5.4 |
| May | 21° / 10° | 81 | 11.3 | 0 | 14.3 | 6.3 |
| Jun | 25° / 14° | 64 | 8.9 | 0 | 15 | 7.1 |
| Jul | 28° / 17° | 52 | 8 | 0 | 14.7 | 6.8 |
| Aug | 28° / 17° | 66 | 9.7 | 0 | 13.7 | 6.5 |
| Sep | 24° / 14° | 94 | 11.7 | 0 | 12.3 | 6.6 |
| Oct | 20° / 10° | 101 | 10.7 | 0 | 10.9 | 6.2 |
| Nov | 15° / 5° | 65 | 7.7 | 0 | 9.7 | 4.6 |
| Dec | 11° / 2° | 43 | 6 | 0.4 | 9 | 3.2 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Caldes de Montbui gets about 788 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 2.9 months, from around Mar 23 to Jun 17, peaking in April at about 40% 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 101 mm over about 11 wet days; February is the driest, with 40 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 20 | 25 | 28 | 37 | 37 | 30 | 25 | 32 | 39 | 34 | 26 | 19 |
| Rain days | 6 | 7 | 9 | 11 | 11 | 9 | 8 | 10 | 12 | 11 | 8 | 6 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 20 | 6 |
| Feb | 25 | 7 |
| Mar | 28 | 9 |
| Apr | 37 | 11 |
| May | 37 | 11 |
| Jun | 30 | 9 |
| Jul | 25 | 8 |
| Aug | 32 | 10 |
| Sep | 39 | 12 |
| Oct | 34 | 11 |
| Nov | 26 | 8 |
| Dec | 19 | 6 |
Monthly rainfall
Over a full year, Caldes de Montbui collects about 788 mm of rain across 107 wet days — roughly 66 mm in an average month.
It doesn’t fall evenly. October is the wettest month with 101 mm, while February is the driest at just 40 mm. The three wettest months alone bring about 35% of the year’s total, and some of the cold-season precipitation falls as snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 44 | 40 | 56 | 82 | 81 | 64 | 52 | 66 | 94 | 101 | 65 | 43 |
| Rain days | 6 | 7 | 9 | 11 | 11 | 9 | 8 | 10 | 12 | 11 | 8 | 6 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rainfall (mm) | Rain days | Snow days | |
|---|---|---|---|
| Jan | 44 | 6 | 1 |
| Feb | 40 | 7 | 1 |
| Mar | 56 | 9 | 0 |
| Apr | 82 | 11 | 0 |
| May | 81 | 11 | 0 |
| Jun | 64 | 9 | 0 |
| Jul | 52 | 8 | 0 |
| Aug | 66 | 10 | 0 |
| Sep | 94 | 12 | 0 |
| Oct | 101 | 11 | 0 |
| Nov | 65 | 8 | 0 |
| Dec | 43 | 6 | 0 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Caldes de Montbui, 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 11 and lasts for 2.8 months, ending around September 4. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 75% of the time on average.
The cloudier part of the year begins around February 14 and lasts for 3.8 months, ending around June 10. The cloudiest month is October, when it is overcast or mostly cloudy 49% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 59 | 57 | 55 | 52 | 52 | 63 | 75 | 71 | 57 | 51 | 56 | 56 |
| Cloudier (%) | 41 | 43 | 45 | 48 | 48 | 37 | 25 | 29 | 43 | 49 | 44 | 44 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 59 | 41 |
| Feb | 57 | 43 |
| Mar | 55 | 45 |
| Apr | 52 | 48 |
| May | 52 | 48 |
| Jun | 63 | 37 |
| Jul | 75 | 25 |
| Aug | 71 | 29 |
| Sep | 57 | 43 |
| Oct | 51 | 49 |
| Nov | 56 | 44 |
| Dec | 56 | 44 |
Daylight, sunrise and sunset
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 15 hours of light; the shortest, around January 1, only 9 hours — a swing of roughly 6 hours.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.3 | 10.3 | 11.7 | 13.1 | 14.3 | 15.0 | 14.7 | 13.7 | 12.3 | 10.9 | 9.7 | 9.0 |
| Sunrise (AM) | 8:22 | 7:56 | 7:11 | 6:18 | 5:37 | 5:22 | 5:35 | 6:05 | 6:37 | 7:11 | 7:48 | 8:18 |
| Sunset (PM) | 5:39 | 6:16 | 6:51 | 7:25 | 7:58 | 8:22 | 8:19 | 7:46 | 6:54 | 6:02 | 5:25 | 5:17 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 9.3 | 8:22 | 5:39 |
| Feb | 10.3 | 7:56 | 6:16 |
| Mar | 11.7 | 7:11 | 6:51 |
| Apr | 13.1 | 6:18 | 7:25 |
| May | 14.3 | 5:37 | 7:58 |
| Jun | 15.0 | 5:22 | 8:22 |
| Jul | 14.7 | 5:35 | 8:19 |
| Aug | 13.7 | 6:05 | 7:46 |
| Sep | 12.3 | 6:37 | 6:54 |
| Oct | 10.9 | 7:11 | 6:02 |
| Nov | 9.7 | 7:48 | 5:25 |
| Dec | 9.0 | 8:18 | 5:17 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Caldes de Montbui averages about 12 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 8 and 18 days.
The sunnier stretch runs 2.6 months, from around Jun 15 to Aug 31. The sunniest month is July, with roughly 17 sunny days (bright).
The greyest month is April, down near 10 sunny days — about 42% fewer than the July peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 14 | 12 | 12 | 9 | 9 | 12 | 17 | 15 | 11 | 10 | 12 | 13 |
| Sky | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed | Bright | Mixed | Mixed | Mixed | Mixed | Mixed |
| Sunny days | Sky | |
|---|---|---|
| Jan | 14 | Mixed |
| Feb | 12 | Mixed |
| Mar | 12 | Mixed |
| Apr | 9 | Mixed |
| May | 9 | Mixed |
| Jun | 12 | Mixed |
| Jul | 17 | Bright |
| Aug | 15 | Mixed |
| Sep | 11 | Mixed |
| Oct | 10 | Mixed |
| Nov | 12 | Mixed |
| Dec | 13 | Mixed |
Humidity comfort
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 Caldes de Montbui, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 3.5 months, from around June 14 to September 28. The muggiest month is August, when the air feels humid, muggy or worse about 76% of the time.
The most comfortable stretch runs from around September 29 to June 13, and April is the most comfortable month — the air is dry or comfortable 100% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 99 | 81 | 28 | 5 | 5 | 26 | 65 | 97 | 100 |
| Comfortable (%) | 0 | 0 | 0 | 1 | 18 | 48 | 29 | 19 | 37 | 29 | 3 | 0 |
| Humid (%) | 0 | 0 | 0 | 0 | 1 | 23 | 51 | 52 | 32 | 6 | 0 | 0 |
| Muggy (%) | 0 | 0 | 0 | 0 | 0 | 1 | 15 | 24 | 5 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| Jan | 100 | 0 | 0 | 0 |
| Feb | 100 | 0 | 0 | 0 |
| Mar | 100 | 0 | 0 | 0 |
| Apr | 99 | 1 | 0 | 0 |
| May | 81 | 18 | 1 | 0 |
| Jun | 28 | 48 | 23 | 1 |
| Jul | 5 | 29 | 51 | 15 |
| Aug | 5 | 19 | 52 | 24 |
| Sep | 26 | 37 | 32 | 5 |
| Oct | 65 | 29 | 6 | 0 |
| Nov | 97 | 3 | 0 | 0 |
| Dec | 100 | 0 | 0 | 0 |
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 Caldes de Montbui is steady company: average speeds sit near 6 km/h — calm — in every month of the year, with no meaningful windy or calm season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 6 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 6 | calm |
| Feb | 7 | calm |
| Mar | 7 | calm |
| Apr | 7 | calm |
| May | 7 | calm |
| Jun | 6 | calm |
| Jul | 6 | calm |
| Aug | 6 | calm |
| Sep | 6 | calm |
| Oct | 6 | calm |
| Nov | 6 | calm |
| Dec | 6 | calm |
Best time to visit Caldes de Montbui
To characterize how pleasant the weather is in Caldes de Montbui throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late October, Caldes de Montbui 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 Caldes de Montbui for general outdoor tourist activities is from early May to late October, with a peak score in the last week of June.
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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel score (0–10) | 3.0 | 3.6 | 4.9 | 5.4 | 6.3 | 7.1 | 6.8 | 6.5 | 6.6 | 6.1 | 4.6 | 3.2 |
| Rating | poor | fair | fair | fair | good | good | good | good | good | good | fair | poor |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 3.0 | poor |
| Feb | 3.6 | fair |
| Mar | 4.9 | fair |
| Apr | 5.4 | fair |
| May | 6.3 | good |
| Jun | 7.1 | good |
| Jul | 6.8 | good |
| Aug | 6.5 | good |
| Sep | 6.6 | good |
| Oct | 6.1 | good |
| Nov | 4.6 | fair |
| Dec | 3.2 | poor |
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 Caldes de Montbui for hot-weather activities is from mid June to early September, with a peak score in the last week of July.
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 Caldes de Montbui, by month
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 July (highs near 28°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near 11°C), pack a warm layer.
In July, Caldes de Montbui sees daytime highs around 28°C and nights near 17°C. Pack light clothes and sun protection. Worth having: rain gear. About 8 days see rain.
Sea temperature near Caldes de Montbui
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 34 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 14 | 13 | 13 | 14 | 17 | 21 | 24 | 25 | 24 | 21 | 17 | 15 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Warm | Refreshing | Refreshing | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 13 | Bracing |
| Mar | 13 | Bracing |
| Apr | 14 | Bracing |
| May | 17 | Cool |
| Jun | 21 | Refreshing |
| Jul | 24 | Refreshing |
| Aug | 25 | Warm |
| Sep | 24 | Refreshing |
| Oct | 21 | Refreshing |
| Nov | 17 | Cool |
| Dec | 15 | Bracing |
UV index (midday) in Caldes de Montbui by month
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 Caldes de Montbui 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 7 | 6 | 8 | 9 | 8 | 6 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 6 | High |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Average hourly UV index in Caldes de Montbui
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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV ≥ 3 (h/day) | 0 | 0.5 | 4.5 | 6.5 | 7 | 8 | 8.5 | 7.5 | 6 | 2.5 | 0 | 0 |
| UV ≥ 6 (h/day) | 0 | 0 | 0 | 2.5 | 2 | 5 | 5.5 | 4 | 0 | 0 | 0 | 0 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 0 | 0 |
| Feb | 0.5 | 0 |
| Mar | 4.5 | 0 |
| Apr | 6.5 | 2.5 |
| May | 7 | 2 |
| Jun | 8 | 5 |
| Jul | 8.5 | 5.5 |
| Aug | 7.5 | 4 |
| Sep | 6 | 0 |
| Oct | 2.5 | 0 |
| Nov | 0 | 0 |
| Dec | 0 | 0 |
Growing season
Caldes de Montbui is mild enough that a frost-free day stays more likely than not even in midwinter. Nights are reliably above freezing from about March 10 to November 18 (254 days); outside that window a hard frost is an occasional risk.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 65 | 74 | 92 | 99 | 100 | 100 | 100 | 100 | 100 | 100 | 92 | 72 |
| Frost nights | 31 | 28 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 31 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 65 | 31 |
| Feb | 74 | 28 |
| Mar | 92 | 11 |
| Apr | 99 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 100 | 0 |
| Nov | 92 | 12 |
| Dec | 72 | 31 |
Growing degree days
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. Caldes de Montbui banks about 1,734 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 0 | 0 | 6 | 60 | 176 | 292 | 386 | 384 | 264 | 150 | 16 | 0 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 6 |
| Apr | 60 |
| May | 176 |
| Jun | 292 |
| Jul | 386 |
| Aug | 384 |
| Sep | 264 |
| Oct | 150 |
| Nov | 16 |
| Dec | 0 |
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.
Caldes de Montbui receives about 4.2 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 1.8 and 6.7 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 6.6 kWh/m² (intense).
The dimmest month is December, down near 1.8 kWh/m² — roughly 72% less than the June peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.1 | 3.0 | 4.2 | 5.3 | 6.1 | 6.6 | 6.5 | 5.7 | 4.3 | 3.1 | 2.2 | 1.8 |
| Level | Moderate | Moderate | Bright | Bright | Intense | Intense | Intense | Bright | Bright | Moderate | Moderate | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 2.1 | Moderate |
| Feb | 3.0 | Moderate |
| Mar | 4.2 | Bright |
| Apr | 5.3 | Bright |
| May | 6.1 | Intense |
| Jun | 6.6 | Intense |
| Jul | 6.5 | Intense |
| Aug | 5.7 | Bright |
| Sep | 4.3 | Bright |
| Oct | 3.1 | Moderate |
| Nov | 2.2 | Moderate |
| Dec | 1.8 | Dim |
Where is Caldes de Montbui?
Caldes de Montbui sits at 41.6°N, 2.2°E, 232 m above sea level, in Spain. The nearest listed city is Castellar del Vallès, 7.0 km away.
Topography around Caldes de Montbui
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Caldes de Montbui.
Within 3 km, the terrain around Caldes de Montbui has significant variations in elevation — a maximum elevation change of 413 m around an average of 273 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,055 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,518 m.
The land around Caldes de Montbui is covered by trees (51%) within 3 km, trees (56%) within 16 km, and trees (50%) and water (25%) within 80 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
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 Caldes de Montbui (41.6333°, 2.1667°, elevation 232 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).