AI-generatedSintra at a glance
- Best time
- May – Sep
- Warmest month
- Aug · 24°
- Sunshine a year
- 2,750 h
- Rain a year
- 565 mm
- Climate
- Mediterranean
- Time zone
- UTC+0 / UTC+1
- Elevation
- 197 m
Climate in Sintra
Sintra has a Mediterranean climate with warm to hot, dry summers and mild, wetter winters. August is the warmest month with average highs of 24 °C, while January is the coolest at 14 °C. With around 2,750 hours of sunshine a year, Sintra is sunny; July is the sunniest month with 11.1 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Excellent
Best time to visit: May – September
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 15°
- Midday, 13:00: about 20°
- Afternoon, 16:00: about 20°
- Evening, 20:00: about 18°
- Night, 23:00: about 17°
07:4519:01
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 07:29–08:21 · evening 18:25–19:17
- Blue hour
- Morning 07:19–07:29 · evening 19:17–19:28
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.
What is the weather like in Sintra in October?
In October, Sintra is mild: daytime highs average 20 °C, and nights cool down to about 15 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 75 mm in total. All in all, October is an excellent month for a holiday in Sintra.
More details for October
- Daylight
- 11 h 15 min07:45 – 19:01
- 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
- 51 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+1Europe/Lisbon
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %52 %
- Few rainy daysweight 30 %64 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Sunshine hours in Sintra
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 6.1 of 11.3 hours of daylight in Sintra, 54 % of the day.
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.
UV index in Sintra
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 it, 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.
Rain in Sintra: 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.
In October, Sintra has about 9 rainy days with 75 mm of rain in total.
Wind and clouds in Sintra
How breezy and how cloudy Sintra 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.
In October, the wind in Sintra typically peaks at 22 km/h during the day: Beaufort 4, moderate breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 51 % of the sky over Sintra: variable cloud, with about 6.1 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.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Sintra
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 days (dew point 18 °C or more).
The coolest nights are in January (9°), the warmest in August (18°). 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.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 52 | 14° | 9° | 4.9 h | 9 | 71 |
| FebruaryFeb | 63 | 14° | 9° | 5.8 h | 7 | 52 |
| MarchMar | 70 | 16° | 10° | 6.8 h | 9 | 62 |
| AprilApr | 79 | 17° | 12° | 7.8 h | 9 | 52 |
| MayMay | 97 | 19° | 13° | 9.2 h | 6 | 38 |
| JuneJun | 100 | 22° | 16° | 10.6 h | 2 | 11 |
| JulyJul | 100 | 24° | 17° | 11.1 h | 1 | 2 |
| AugustAug | 100 | 24° | 18° | 10.0 h | 1 | 4 |
| SeptemberSep | 96 | 23° | 17° | 8.2 h | 4 | 31 |
| OctoberOct | 80 | 20° | 15° | 6.1 h | 9 | 75 |
| NovemberNov | 65 | 16° | 12° | 5.0 h | 10 | 85 |
| DecemberDec | 55 | 14° | 10° | 4.6 h | 10 | 83 |
Climate averages 1996–2025, 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
38.80° N, 9.38° W · 197 m · Europe/Lisbon
Best time to visit Sintra
The best time to visit Sintra is from May to September. For sightseeing, day trips and hiking, conditions are most comfortable from March to November. The wettest month is November with 85 mm of precipitation.
Sintra through the seasons
How the weather changes over the seasons, with averages for each.
Sintra in spring
Mar – May
Excellent
- 16–19 °C by day
- 8 h of sun a day
- 24 rainy days in all
Sintra in summer
Jun – Aug
Excellent
- 22–24 °C by day
- 11 h of sun a day
- 4 rainy days in all
Sintra in autumn
Sep – Nov
Excellent
- 16–23 °C by day
- 6 h of sun a day
- 24 rainy days in all
Sintra in winter
Dec – Feb
Fair
- 14 °C by day
- 5 h of sun a day
- 26 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Sintra for you.
Your best months: June – August
Based on the climate averages; tap a month to see its details.
Compare two months in Sintra
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
June has the better holiday weather in Sintra: score 100 against 80. In June, days are 2 °C warmer than in October. June has 7 fewer rainy days. The sun shines 5 hours longer a day in June.
| Month | October | June |
|---|---|---|
| Weather score | 80 | 100better |
| Day high | 20° | 22° |
| Night low | 15° | 16° |
| Sunshine | 6.1 h | 10.6 hbetter |
| Rainy days | 9 | 2better |
| Rainfall | 75 mm | 11 mmbetter |
| Muggy days | 1 | 0better |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Mar – Nov
15–28 °C and not too much rain
Sintra month by month
The typical weather for every month at a glance.
52January14° · 5 h
In January, Sintra is cool: daytime highs average 14 °C, and nights cool down to about 9 °C. Expect around 5 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 71 mm in total. All in all, January is a so-so month for a holiday in Sintra.
Sintra in January63February14° · 6 h
In February, Sintra is cool: daytime highs average 14 °C, and nights cool down to about 9 °C. Expect around 6 hours of sunshine a day. Rain falls on about 7 days, adding up to 52 mm. All in all, February is a good month for a holiday in Sintra.
Sintra in February70March16° · 7 h
In March, Sintra is cool: daytime highs average 16 °C, and nights cool down to about 10 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 9 rainy days and 62 mm in total. All in all, March is a good month for a holiday in Sintra.
Sintra in March79April17° · 8 h
In April, Sintra is mild: daytime highs average 17 °C, and nights cool down to about 12 °C. The sun shines for around 8 hours a day. Rain falls on about 9 days, adding up to 52 mm. All in all, April is a good month for a holiday in Sintra.
Sintra in April97May19° · 9 h
In May, Sintra is mild: daytime highs average 19 °C, and nights cool down to about 13 °C. With around 9 hours of sunshine a day, there is plenty of sun. Rain falls on about 6 days, adding up to 38 mm. All in all, May is an excellent month for a holiday in Sintra.
Sintra in May100June22° · 11 h
In June, Sintra is warm: daytime highs average 22 °C, and nights cool down to about 16 °C. With around 11 hours of sunshine a day, there is plenty of sun. Rain is rare: about 2 days bring 11 mm in total. All in all, June is an excellent month for a holiday in Sintra.
Sintra in June100July24° · 11 h
In July, Sintra is warm: daytime highs average 24 °C, and nights cool down to about 17 °C. With around 11 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, July is an excellent month for a holiday in Sintra.
Sintra in July100August24° · 10 h
In August, Sintra is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. With around 10 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 Sintra.
Sintra in August96September23° · 8 h
In September, Sintra is warm: daytime highs average 23 °C, and nights cool down to about 17 °C. The sun shines for around 8 hours a day. Rain is rare: about 4 days bring 31 mm in total. All in all, September is an excellent month for a holiday in Sintra.
Sintra in September80October20° · 6 h
In October, Sintra is mild: daytime highs average 20 °C, and nights cool down to about 15 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 75 mm in total. All in all, October is an excellent month for a holiday in Sintra.
Sintra in October65November16° · 5 h
In November, Sintra is mild: daytime highs average 16 °C, and nights cool down to about 12 °C. Expect around 5 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 85 mm in total. All in all, November is a good month for a holiday in Sintra.
Sintra in November55December14° · 5 h
In December, Sintra is cool: daytime highs average 14 °C, and nights cool down to about 10 °C. Expect around 5 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 83 mm in total. All in all, December is a so-so month for a holiday in Sintra.
Sintra in DecemberSintra compared
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Sintra vs. Cascais
In October the holiday weather in Sintra and Cascais is about equally good (score 80 vs. 79). During the day Cascais is 2 °C warmer than Sintra.
| in October | Sintra | Cascais |
|---|---|---|
| Holiday score | 80 | 79 |
| Daytime high | 20° | 22° |
| Sea | – | 19° |
| Sunshine | 6 h | 6 h |
| Rainy days | 9 | 9 |
| Best time | May – Sep | Jun – Sep |
Through the year
Portugal in October: the best places
In October, Sintra ranks 1 of 24 destinations in this country.
- SintraThis page20°80
- 2Amadora21°19°80
- 3Lisbon21°19°80
- 4Fátima21°74
- 5Coimbra22°74
- 6Funchal21°23°74
- 7Porto21°17°69
- 8Guimarães20°68
Planning a trip to Sintra
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Sintra 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.
Sintra has its best school-holiday weather during the summer holidays (score 100) and its weakest during the Christmas holidays (score 54).
- 76
Easter holidays
Mar – Apr
Good
- 16 °C by day
- 7.5 h of sun a day
- 9 rainy days a month
Good for: Sightseeing & walks
- 98
May half-term
May – Jun
Excellent
- 20 °C by day
- 9.5 h of sun a day
- 5 rainy days a month
Good for: Sightseeing & walks
- 100
Summer holidays
Jul – Aug
ExcellentBest holidays
- 24 °C by day
- 10.4 h of sun a day
- 1 rainy day a month
Good for: Sightseeing & walks
- 80
October half-term
Oct
Excellent
- 20 °C by day
- 6.1 h of sun a day
- 9 rainy days a month
Good for: Sightseeing & walks
- 54
Christmas holidays
Dec – Jan
Fair
- 14 °C by day
- 4.8 h of sun a day
- 9 rainy days a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 2 h 25 min
- Distance
- 1,570 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.
Frequently asked questions about Sintra
When is the best time to visit Sintra?
The best time to visit Sintra is from May to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Sintra?
August is the warmest month, with average highs of 24 °C and nights around 18 °C. January is the coolest month at 14 °C.
When does it rain most in Sintra?
The wettest month is November with 85 mm of precipitation. The driest month is July with 2 mm.
How many hours of sunshine does Sintra get?
Sintra gets around 2,750 hours of sunshine a year. The sunniest month is July with 11.1 hours a day; in December there are 4.6 hours a day.
What time zone is Sintra in?
Sintra uses the time zone Europe/Lisbon: UTC+0 in January and UTC+1 in July.
How long is the flight from London to Sintra?
A nonstop flight from London to Sintra takes about 2 h 25 min, for a straight-line distance of about 1,570 km.
Which school holidays are best for Sintra?
Sintra has its best school-holiday weather during the summer holidays (score 100) and its weakest during the Christmas holidays (score 54). Holiday ratings (0–100): Easter holidays 76, May half-term 98, Summer holidays 100, October half-term 80, Christmas holidays 54.
Near Sintra
Other destinations close by.
Places with a climate like Sintra
Destinations whose weather through the year is closest to Sintra's – good alternatives.