When to go
The Best Time to Visit Sintra
Month-by-month climate data for Sintra, Portugal — daily highs and lows, rain days, and an honest verdict for every month of the year.
Timing is the first real decision when planning Sintra— it drives crowds, prices and what's actually open. Here's how the year breaks down so you can pick dates that fit the trip you're building, not just the weather.
April–June, September–October. Mild without August day-tripper crowds; mornings are foggy and atmospheric year-round.
Warmest in Sintra: Jul (25°C / 77°F) · Coolest: Jan (14°C / 57°F) · Wettest: Dec (~13 rain days)
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)
Sintra climate, month by month
January
14° / 8°C
~10 rain days
Good
February
16° / 9°C
~9 rain days
Good
March
17° / 10°C
~12 rain days
Good
April
18° / 11°C
~11 rain days
Excellent
May
21° / 13°C
~8 rain days
Excellent
June
22° / 15°C
~9 rain days
Excellent
July
25° / 16°C
~1 rain days
Excellent
August
25° / 17°C
~1 rain days
Excellent
September
24° / 16°C
~8 rain days
Excellent
October
22° / 15°C
~12 rain days
Excellent
November
18° / 12°C
~11 rain days
Excellent
December
15° / 10°C
~13 rain days
Good
Plan around it
Dates locked in? Start from the Sintra travel guide or jump straight to a 3-day, 5-day or 7-day itinerary.