Impact-Site-Verification: e97618de-a52b-470d-b945-7e81282bcff0
Sintra, Portugal

Sintra, Portugal

Best Time to Visit Sintra

Weather month by month, from 20 years of weather-station records.

Best months
May, June, and September
Warmest month
August, 29°C
Wettest month
November, 135 mm

Sintra weather by month

Average daily high and low, total rainfall and days with at least 2.5 mm of rain.

MonthHigh / lowRainVerdict
January15°C / 9°C105 mm · 8 daysFair
February16°C / 9°C92 mm · 7 daysFair
March18°C / 11°C92 mm · 7 daysFair
April20°C / 13°C76 mm · 7 daysGreat
May23°C / 15°C44 mm · 4 daysGreat
June26°C / 17°C18 mm · 2 daysGreat
July28°C / 18°C1 mm · 0 daysGood
August29°C / 19°C5 mm · 0 daysGood
September27°C / 18°C35 mm · 3 daysGreat
October23°C / 16°C114 mm · 7 daysGreat
November18°C / 12°C135 mm · 8 daysFair
December15°C / 10°C103 mm · 7 daysFair

Sintra by season

Spring

Spring (April-June) is arguably the best time to visit. The gardens are in spectacular bloom, temperatures are mild (15-22°C), and the famous mist adds atmosphere without being oppressive.

  • + Ideal weather for hiking
  • + Gardens like Monserrate are at their peak
  • + Longer daylight hours
  • − Can still be busy, especially on weekends
  • − Occasional rain showers

Summer

Summer (July-August) brings warm, dry weather (up to 25-28°C in the town, cooler in the hills) but also the largest crowds. The palaces are packed, and queues are at their longest.

  • + Guaranteed sunny days
  • + All attractions open longest hours
  • + Vibrant atmosphere
  • − Overwhelming tourist crowds
  • − Long waits for transport and entry

Autumn

Autumn (September-October) offers a second peak season with pleasant temperatures, thinning crowds, and the forests turning beautiful shades of gold and red.

  • + Comfortable sightseeing weather
  • + Harvest season for local foods
  • + Beautiful autumn foliage in the parks
  • − Increasing chance of rain towards November
  • − Shorter days

Winter

Winter (November-March) is cool (8-15°C), damp, and often shrouded in thick mist, creating an intensely moody and atmospheric experience with very few tourists.

  • + Minimal crowds at major attractions
  • + Deeply atmospheric, gothic feel
  • + Lowest accommodation rates
  • − Some outdoor cafes close
  • − Cold and wet conditions require proper gear

Sintra month by month

Sintra in January

Fair

In January, Sintra averages highs of 15°C and lows of 9°C, with about 8 rainy days and 105 mm of rain. Expect mixed weather, with comfortable spells.

Sintra in February

Fair

In February, Sintra averages highs of 16°C and lows of 9°C, with about 7 rainy days and 92 mm of rain. Expect mixed weather, with comfortable spells.

Sintra in March

Fair

In March, Sintra averages highs of 18°C and lows of 11°C, with about 7 rainy days and 92 mm of rain. Expect mixed weather, with comfortable spells.

Sintra in April

Great

In April, Sintra averages highs of 20°C and lows of 13°C, with about 7 rainy days and 76 mm of rain. It is one of the most comfortable months for sightseeing.

Sintra in May

Great

In May, Sintra averages highs of 23°C and lows of 15°C, with about 4 rainy days and 44 mm of rain. It is one of the most comfortable months for sightseeing.

Sintra in June

Great

In June, Sintra averages highs of 26°C and lows of 17°C, with about 2 rainy days and 18 mm of rain. It is one of the most comfortable months for sightseeing.

Sintra in July

Good

In July, Sintra averages highs of 28°C and lows of 18°C, with about 0 rainy days and 1 mm of rain. It is a good month to visit.

Sintra in August

Good

In August, Sintra averages highs of 29°C and lows of 19°C, with about 0 rainy days and 5 mm of rain. It is a good month to visit.

Sintra in September

Great

In September, Sintra averages highs of 27°C and lows of 18°C, with about 3 rainy days and 35 mm of rain. It is one of the most comfortable months for sightseeing.

Sintra in October

Great

In October, Sintra averages highs of 23°C and lows of 16°C, with about 7 rainy days and 114 mm of rain. It is one of the most comfortable months for sightseeing.

Sintra in November

Fair

In November, Sintra averages highs of 18°C and lows of 12°C, with about 8 rainy days and 135 mm of rain. Expect mixed weather, with comfortable spells.

Sintra in December

Fair

In December, Sintra averages highs of 15°C and lows of 10°C, with about 7 rainy days and 103 mm of rain. Expect mixed weather, with comfortable spells.

Top tours and experiences in Sintra

The tours and tickets travellers book most, with ratings and reviews from Viator.

Private Tour Sintra from Lisbon Palaces of Pena and Regaleira

Private Tour Sintra from Lisbon Palaces of Pena and Regaleira

5.0762 reviews8h
Private Sintra Tour Palaces and Coast by Vintage Car or Jeep

Private Sintra Tour Palaces and Coast by Vintage Car or Jeep

5.0421 reviews4h
Sintra Historical Jeep Adventure - Palaces & Secret Routes

Sintra Historical Jeep Adventure - Palaces & Secret Routes

5.0414 reviews7h
Private Half Day Tour to Sintra and Pena Palace from Lisbon

Private Half Day Tour to Sintra and Pena Palace from Lisbon

4.7305 reviews4h
All things to do in Sintra →

Tours and prices from Viator, a Tripadvisor company. Prices change with your dates. We may earn a commission if you book, at no extra cost to you.

Plan your Sintra trip

Best time to visit Sintra: FAQ

What is the best month to visit Sintra?+

May is the most comfortable month on average, with highs of 23°C. June and September are close behind.

What is the rainiest month in Sintra?+

November is the wettest month, with about 135 mm of rain.

How hot does Sintra get?+

August is the warmest month, with average highs of 29°C and lows of 19°C. The coldest nights come in January, averaging 9°C.

Averages for 2006–2025 from the LISBOA GEOFISICA weather station (23 km from the centre), NOAA Global Historical Climatology Network. Verdicts rate sightseeing comfort from daytime highs and rainy days.