January in Sintra — reliably good (9th best month)
Good · 7.2/10January averages 11°C (52°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 84 mm, so plan one flexible day in three; you still get about 26 sunny days and 9.8 hours of daylight.
It scores 7.2/10 here, 9th of 12 months, against 9.7/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
If your dates are flexible, May is materially better in Sintra — 2.5 points higher on the same scale.
February in Sintra — reliably good (7th best month)
Good · 8.2/10February averages 12°C (54°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 58 mm, so plan one flexible day in three; you still get about 24 sunny days and 10.8 hours of daylight.
It scores 8.2/10 here, 7th of 12 months, against 9.7/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
If your dates are flexible, May is materially better in Sintra — 1.5 points higher on the same scale.
March in Sintra — reliably good (10th best month)
Good · 7.2/10March averages 13°C (55°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 116 mm this is a genuinely wet month: about 26 sunny days in total, and outdoor plans need an indoor fallback.
It scores 7.2/10 here, 10th of 12 months, against 9.7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
If your dates are flexible, May is materially better in Sintra — 2.5 points higher on the same scale.
April in Sintra — the year's strongest window
Best window · 9.3/10April averages 15°C (58°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Expect 44 mm of rain — occasional showers rather than washed-out days — alongside about 28 sunny days and 13.2 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Sintra at 9.3/10 — the reference point every other month on this page is measured against.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening.
May in Sintra — the year's strongest window
Best window · 9.7/10May averages 17°C (62°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Expect 25 mm of rain — occasional showers rather than washed-out days — alongside about 30 sunny days and 14.3 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Sintra at 9.7/10 — the reference point every other month on this page is measured against.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening.
June in Sintra — the year's strongest window
Best window · 9/10June averages 18°C (65°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 50 mm, so plan one flexible day in three; you still get about 29 sunny days and 14.8 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Sintra at 9/10 — the reference point every other month on this page is measured against.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
July in Sintra — the year's strongest window
Best window · 9.6/10July averages 20°C (69°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rain is a non-issue at 3 mm for the month, with about 31 sunny days and 14.6 hours of daylight to work with.
On our climate-comfort scale this is the top-ranked month of the year for Sintra at 9.6/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection.
August in Sintra — the year's strongest window
Best window · 9.6/10August averages 20°C (69°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rain is a non-issue at 1 mm for the month, with about 31 sunny days and 13.6 hours of daylight to work with.
On our climate-comfort scale this is the top-ranked month of the year for Sintra at 9.6/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection.
September in Sintra — the year's strongest window
Best window · 8.7/10September averages 19°C (66°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rainfall runs 61 mm, so plan one flexible day in three; you still get about 27 sunny days and 12.4 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Sintra at 8.7/10 — the reference point every other month on this page is measured against.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
October in Sintra — reliably good (11th best month)
Good · 7.2/10October averages 18°C (65°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 128 mm this is a genuinely wet month: about 22 sunny days in total, and outdoor plans need an indoor fallback.
It scores 7.2/10 here, 11th of 12 months, against 9.7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
If your dates are flexible, May is materially better in Sintra — 2.5 points higher on the same scale.
November in Sintra — reliably good (8th best month)
Good · 7.4/10November averages 15°C (59°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 96 mm, so plan one flexible day in three; you still get about 21 sunny days and 10.1 hours of daylight.
It scores 7.4/10 here, 8th of 12 months, against 9.7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
If your dates are flexible, May is materially better in Sintra — 2.3 points higher on the same scale.
December in Sintra — workable with trade-offs
Trade-offs · 6.6/10December averages 12°C (54°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 112 mm this is a genuinely wet month: about 23 sunny days in total, and outdoor plans need an indoor fallback.
It scores 6.6/10 here, 12th of 12 months, against 9.7/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
If your dates are flexible, May is materially better in Sintra — 3.1 points higher on the same scale.
