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Caldas da Rainha weather & best time to visit

Sun, sea & sand

Caldas da Rainha at a glance

Best time
Jun – Sep
Warmest month
Aug · 26°
Warmest sea
Aug · 18.6°
Sunshine a year
2,890 h
Rain a year
601 mm
Climate
Mediterranean
Time zone
UTC+0 / UTC+1
Elevation
60 m

Climate in Caldas da Rainha

Caldas da Rainha has a Mediterranean climate with warm to hot, dry summers and mild, wetter winters. August is the warmest month with average highs of 26 °C, while January is the coolest at 15 °C. With around 2,890 hours of sunshine a year, Caldas da Rainha is sunny; July is the sunniest month with 11.0 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Caldas da Rainha

The best time to visit Caldas da Rainha is from June to September. The sea stays too cool for a classic beach holiday: even in August it only reaches 18.6 °C. For sightseeing, day trips and hiking, conditions are most comfortable all year round except in January. The wettest month is November with 90 mm of precipitation.

Caldas da Rainha through the seasons

How the weather changes over the seasons, with averages for each.

Caldas da Rainha in spring

Mar – May

36

Poor

  • 18–21 °C by day
  • Sea 15 °C
  • 8.7 h of sun a day
  • 26 rainy days in all

Caldas da Rainha in summer

Jun – Aug

76

Good

  • 24–26 °C by day
  • Sea 18 °C
  • 10.8 h of sun a day
  • 5 rainy days in all

Caldas da Rainha in autumn

Sep – Nov

47

Fair

  • 18–25 °C by day
  • Sea 18 °C
  • 6.9 h of sun a day
  • 25 rainy days in all

Caldas da Rainha in winter

Dec – Feb

19

Poor

  • 15–16 °C by day
  • Sea 15 °C
  • 5.1 h of sun a day
  • 29 rainy days in all

Which month for what?

Beach & swimming

No month

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

All year except Jan

15–28 °C and not too much rain

Find your perfect month

Tell us what you like and we rate every month in Caldas da Rainha for you.

Swimming in the sea
Sunshine
Little rain

Your best months: July – August

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

45

Holiday weather in October

Fair

Best time to visit: June – September

Good forSightseeing & walks

A typical day in October

  1. Morning, 08:00: about 15°
  2. Midday, 13:00: about 21°
  3. Afternoon, 16:00: about 22°
  4. Evening, 20:00: about 19°
  5. Night, 23:00: about 17°

07:4518:59

Pleasant evenings; a light layer can help.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 07:28–08:21 · evening 18:23–19:16
Blue hour
Morning 07:18–07:28 · evening 19:16–19:26

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Caldas da Rainha compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 23° at the start of the month to 20° at the end. The sea cools from 18° to 17°. The days get 1.2 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high23°20°
Night-time low15°13°
Sea18°17°
Daylight11.8 h10.6 h

What is the weather like in Caldas da Rainha in October?

In October, Caldas da Rainha is warm: daytime highs average 22 °C, and nights cool down to about 15 °C. The sea averages 18.1 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 6.7 hours a day. Rain is frequent, with about 10 rainy days and 79 mm in total. All in all, October is a so-so month for a holiday in Caldas da Rainha.

More details for October

Daylight
11 h 14 min07:45 – 18:59
UV index
4 · moderateclear sky, noon (estimate)All months
Muggy days
1 daydew point 18 °C or moreAll months
Wind
22 km/haverage daily peakAll months
Cloud cover
53 %on averageAll months
Hot days
0 days30 °C or moreAll months
Time zone
UTC+1offset from UTC

How the score comes together

  • Temperatureweight 35 %48 %
  • Seaweight 25 %16 %
  • Sunshineweight 20 %62 %
  • Few rainy daysweight 20 %59 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in October

  • Wetsuit for longer swims
  • Sunscreen
  • A jumper for the evenings
  • Rain jacket or umbrella

Compare two months in Caldas da Rainha

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

August has the better holiday weather in Caldas da Rainha: score 81 against 45. In August, days are 4 °C warmer than in October. The sea is 1 °C warmer in August. August has 9 fewer rainy days. The sun shines 4 hours longer a day in August.

October vs August, Caldas da Rainha
MonthOctoberAugust
Holiday weather score4581better
Daytime high22°26°
Night-time low15°17°
Sea18.1°18.6°
Sunshine6.7 h10.5 hbetter
Rainy days101better
Rainfall79 mm5 mmbetter
Muggy days1better3

Based on the climate averages 1996–2025.

Caldas da Rainha month by month

The typical weather for every month at a glance.

18January15° · Sea 15° · 5.0 h

In January, Caldas da Rainha is cool: daytime highs average 15 °C, and nights cool down to about 9 °C. The sea averages 14.8 °C – swimming is only for the hardy. Expect around 5.0 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 80 mm in total. All in all, January is not an ideal month for a holiday in Caldas da Rainha.

Caldas da Rainha in January
24February16° · Sea 14° · 6.1 h

In February, Caldas da Rainha is cool: daytime highs average 16 °C, and nights cool down to about 9 °C. The sea averages 14.2 °C – swimming is only for the hardy. Expect around 6.1 hours of sunshine a day. Rain falls on about 8 days, adding up to 55 mm. All in all, February is not an ideal month for a holiday in Caldas da Rainha.

Caldas da Rainha in February
27March18° · Sea 14° · 7.6 h

In March, Caldas da Rainha is mild: daytime highs average 18 °C, and nights cool down to about 10 °C. The sea averages 14.3 °C – swimming is only for the hardy. The sun shines for around 7.6 hours a day. Rain is frequent, with about 10 rainy days and 64 mm in total. All in all, March is not an ideal month for a holiday in Caldas da Rainha.

Caldas da Rainha in March
31April19° · Sea 15° · 8.7 h

In April, Caldas da Rainha is mild: daytime highs average 19 °C, and nights cool down to about 12 °C. The sea averages 15.2 °C – swimming is only for the hardy. The sun shines for around 8.7 hours a day. Rain is frequent, with about 10 rainy days and 56 mm in total. All in all, April is not an ideal month for a holiday in Caldas da Rainha.

Caldas da Rainha in April
50May21° · Sea 16° · 9.9 h

In May, Caldas da Rainha is warm: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 16.2 °C – swimming is only for the hardy. With around 9.9 hours of sunshine a day, there is plenty of sun. Rain falls on about 6 days, adding up to 41 mm. All in all, May is a so-so month for a holiday in Caldas da Rainha.

Caldas da Rainha in May
69June24° · Sea 18° · 10.8 h

In June, Caldas da Rainha is warm: daytime highs average 24 °C, and nights cool down to about 16 °C. The sea averages 17.6 °C – bracing, so a wetsuit helps for longer swims. With around 10.8 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 12 mm in total. All in all, June is a good month for a holiday in Caldas da Rainha.

Caldas da Rainha in June
79July25° · Sea 18° · 11.0 h

In July, Caldas da Rainha is warm: daytime highs average 25 °C, and nights cool down to about 17 °C. The sea averages 18.2 °C – bracing, so a wetsuit helps for longer swims. With around 11.0 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, July is a good month for a holiday in Caldas da Rainha.

Caldas da Rainha in July
81August26° · Sea 19° · 10.5 h

In August, Caldas da Rainha is warm: daytime highs average 26 °C, and nights cool down to about 17 °C. The sea averages 18.6 °C – bracing, so a wetsuit helps for longer swims. With around 10.5 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, August is an excellent month for a holiday in Caldas da Rainha.

Caldas da Rainha in August
77September25° · Sea 19° · 8.8 h

In September, Caldas da Rainha is warm: daytime highs average 25 °C, and nights cool down to about 16 °C. The sea averages 18.6 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8.8 hours a day. Rain is rare: about 5 days bring 32 mm in total. All in all, September is a good month for a holiday in Caldas da Rainha.

Caldas da Rainha in September
45October22° · Sea 18° · 6.7 h

In October, Caldas da Rainha is warm: daytime highs average 22 °C, and nights cool down to about 15 °C. The sea averages 18.1 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 6.7 hours a day. Rain is frequent, with about 10 rainy days and 79 mm in total. All in all, October is a so-so month for a holiday in Caldas da Rainha.

Caldas da Rainha in October
18November18° · Sea 17° · 5.3 h

In November, Caldas da Rainha is mild: daytime highs average 18 °C, and nights cool down to about 12 °C. The sea averages 16.9 °C – swimming is only for the hardy. Expect around 5.3 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 90 mm in total. All in all, November is not an ideal month for a holiday in Caldas da Rainha.

Caldas da Rainha in November
15December16° · Sea 16° · 4.3 h

In December, Caldas da Rainha is cool: daytime highs average 16 °C, and nights cool down to about 10 °C. The sea averages 15.5 °C – swimming is only for the hardy. Expect around 4.3 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 84 mm in total. All in all, December is not an ideal month for a holiday in Caldas da Rainha.

Caldas da Rainha in December

Climate in detail

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Caldas da Rainha

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Cool 8–15°
  • Pleasant 15–20°

PleasantOctober: nights around 15°. Ideal for sleeping, often with the window open. Muggy on about 1 day (dew point 18 °C or more).

The coolest nights are in January (9°), the warmest in August (17°). Nights are pleasant for sleeping (15 to 20 °C) from June to October.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 22°Night 15°Sea 18°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan1815°9°14.8°5.0 h1080
FebruaryFeb2416°9°14.2°6.1 h855
MarchMar2718°10°14.3°7.6 h1064
AprilApr3119°12°15.2°8.7 h1056
MayMay5021°14°16.2°9.9 h641
JuneJun6924°16°17.6°10.8 h312
JulyJul7925°17°18.2°11.0 h14
AugustAug8126°17°18.6°10.5 h15
SeptemberSep7725°16°18.6°8.8 h532
OctoberOct4522°15°18.1°6.7 h1079
NovemberNov1818°12°16.9°5.3 h1190
DecemberDec1516°10°15.5°4.3 h1084

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

39.40° N, 9.14° W · 60 m · Europe/Lisbon

Swimming calendar

Sea temperature in Caldas da Rainha

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October18.1°Cfresh

8 in 10 years: 17.0 – 19.2 °C

Swimming season: Always below 20 °C

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 18.1°8 in 10 years 17.0° – 19.2°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Caldas da Rainha ranges from 14.2 °C in February to 18.6 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

The sea temperature varies from year to year: in August, eight out of ten years were between 17.7 and 19.7 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan14.8°14.1°15.8°cold
FebruaryFeb14.2°13.3°15.0°cold
MarchMar14.3°13.6°15.0°cold
AprilApr15.2°14.3°16.3°cold
MayMay16.2°15.3°17.1°cold
JuneJun17.6°16.7°18.4°fresh
JulyJul18.2°17.5°18.9°fresh
AugustAug18.6°17.7°19.7°fresh
SeptemberSep18.6°17.5°19.6°fresh
OctoberOct18.1°17.0°19.2°fresh
NovemberNov16.9°15.5°18.1°cold
DecemberDec15.5°14.7°16.6°cold
Sunshine

Sunshine hours in Caldas da Rainha

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
2,890 hours
Sunniest month
Jul · 11.0 h a day
Least sunshine
Dec · 4.3 h a day
OctoberSunshine 6.7 hDaylight 11.2 hShare of daylight 60 %
SunshineDaylight

In October, the sun shines for about 6.7 of 11.2 hours of daylight in Caldas da Rainha, 60 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain

Rain in Caldas da Rainha: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
601 mm on 85 days
Wettest month
Nov · 90 mm
Driest month
Jul · 4 mm
OctoberRainy days 10Rainfall 79 mm

In October, Caldas da Rainha has about 10 rainy days with 79 mm of rain in total.

Sun protection

UV index in Caldas da Rainha

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
4 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.

The sun is strongest in June (UV 10).

Minutes until sunburn in October

Very fair skin
about 30 min
Fair skin
about 40 min
Light brown skin
about 55 min
Olive skin
about 70 min

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds

Wind and clouds in Caldas da Rainha

How breezy and how cloudy Caldas da Rainha is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
23 km/h · moderate breeze
Windiest month
Jul · 24 km/h
Calmest month
Sep · 21 km/h
OctoberWind 22 km/hBeaufort 4
20
WindBeaufort 4

In October, the wind in Caldas da Rainha typically peaks at 22 km/h during the day: Beaufort 4, moderate breeze.

Breezy months for windsurfing and kiting

From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting, and here it is that strong all year.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
48 % · variable cloud
Clearest month
Jul · 32 %
Cloudiest month
Dec · 57 %
OctoberCloud cover 53 %Sunshine 6.7 h

In October, cloud covers on average 53 % of the sky over Caldas da Rainha: variable cloud, with about 6.7 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Heat & humidity

Heat and humidity in Caldas da Rainha

How often the day gets hot in Caldas da Rainha (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
9 days
Hottest month
Aug · 26 °C
Hot months
none

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Daytime high 22 °C

In October, Caldas da Rainha has about 0 hot days, with an average daytime high of 22 °C: pleasant. Heat plays no part this month.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Planning a trip to Caldas da Rainha

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Caldas da Rainha in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Caldas da Rainha has its best school-holiday weather during the summer holidays (score 80) and its weakest during the Christmas holidays (score 17).

  • Easter holidays

    Mar – Apr

    30

    Poor

    • 19 °C by day
    • Sea 15 °C
    • 8.4 h of sun a day
    • 10 rainy days a month

    Good for: Sightseeing & walks

  • May half-term

    May – Jun

    54

    Fair

    • 22 °C by day
    • Sea 16 °C
    • 10.1 h of sun a day
    • 6 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    80

    ExcellentBest holidays

    • 26 °C by day
    • Sea 18 °C
    • 10.7 h of sun a day
    • 1 rainy day a month

    Good for: Sightseeing & walks

  • October half-term

    Oct

    45

    Fair

    • 22 °C by day
    • Sea 18 °C
    • 6.7 h of sun a day
    • 10 rainy days a month

    Good for: Sightseeing & walks

  • Christmas holidays

    Dec – Jan

    17

    Poor

    • 15 °C by day
    • Sea 15 °C
    • 4.7 h of sun a day
    • 10 rainy days a month

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 2 h 20 min
Distance
1,500 km
Time zone
UTC+1
Jet lag
Hardly any (under 3 h)

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Compare & alternatives

Compare

Caldas da Rainha compared

Put Caldas da Rainha side by side with another destination.

Nearby:
Compare with home:

Caldas da Rainha vs Óbidos

In October the holiday weather in Caldas da Rainha and Óbidos is about equally good (score 45 vs 45). During the day it is about as warm in Óbidos as in Caldas da Rainha. The sea is about equally warm.

Caldas da Rainha vs Óbidos, in October
in OctoberCaldas da RainhaÓbidos
Holiday weather score4545
Daytime high22°22°
Sea18°18°
Sunshine7 h7 h
Rainy days1010
Best timeJun – SepJun – Sep

Through the year

OctoberCaldas da Rainha 22°Óbidos 22°
Caldas da RainhaÓbidos
Go to Óbidos
Ranking

Portugal in October: the best places

In October, Caldas da Rainha ranks 22 among the 31 nearest destinations in this country.

  1. Beja24°84
  2. 2Évora24°83
  3. 3Tomar24°82
  4. 4Sintra21°82
  5. 5Amadora22°19°82
  6. 6Lisbon22°19°82
  7. 7Torres Vedras22°80
  8. 8Santarém24°80
  9. 22Caldas da RainhaThis page22°18°45
All destinations: Portugal

Near Caldas da Rainha

Other destinations close by.

Places with a climate like Caldas da Rainha

Destinations whose weather through the year is closest to Caldas da Rainha's – good alternatives.

  1. 84 % similar55SagresPortugal22°19°Best time: Jun – Sep
  2. 83 % similar60Lagos, AlgarvePortugal23°20°Best time: Jun – Sep
  3. 83 % similar58SinesPortugal23°19°Best time: Jun – Sep
  4. 78 % similar64AljezurPortugal24°19°Best time: Jun – Sep

Frequently asked questions about Caldas da Rainha

When is the best time to visit Caldas da Rainha?

The best time to visit Caldas da Rainha is from June to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Caldas da Rainha?

The sea temperature in Caldas da Rainha ranges from 14.2 °C in February to 18.6 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

Can you swim in Caldas da Rainha in October?

Only if you don't mind cold water: in October the sea averages just 18.1 °C. Comfortable swimming temperatures are not reached at any time of year.

What is the warmest month in Caldas da Rainha?

August is the warmest month, with average highs of 26 °C and nights around 17 °C. January is the coolest month at 15 °C.

When does it rain most in Caldas da Rainha?

The wettest month is November with 90 mm of precipitation. The driest month is July with 4 mm.

How many hours of sunshine does Caldas da Rainha get?

Caldas da Rainha gets around 2,890 hours of sunshine a year. The sunniest month is July with 11.0 hours a day; in December there are 4.3 hours a day.

What time zone is Caldas da Rainha in?

Caldas da Rainha is on UTC+0 in January and UTC+1 in July.

How long is the flight from London to Caldas da Rainha?

A nonstop flight from London to Caldas da Rainha takes about 2 h 20 min, for a straight-line distance of about 1,500 km.

Which school holidays are best for Caldas da Rainha?

Caldas da Rainha has its best school-holiday weather during the summer holidays (score 80) and its weakest during the Christmas holidays (score 17). Holiday ratings (0–100): Easter holidays 30, May half-term 54, summer holidays 80, October half-term 45, Christmas holidays 17.