Sintra weather in December
In December, Sintra sees average daytime highs of 15°C and overnight lows near 13°C, with 89 mm of rain across 10.6 wet days and about 9.3 hours of daylight. It is the 9th-warmest and 2nd-wettest month of the year here.
Day-to-day highs hold fairly steady near 15°C through the month. The sky is clear or mostly clear about 35% of the time in December, and the air most often feels dry.
Daylight stretches from about 9 h 30 min at the start of December to 9 h 18 min by month's end. Set against the rest of the year, December is Sintra's 12th-clearest and 2nd-windiest month. For the whole year in context, see Sintra's year-round climate.
- Daytime high
- 15°
- 9th warmest
- Overnight low
- 13°
- 4th coldest
- Rainfall
- 89 mm
- 10.6 wet days
- Daylight
- 9 h 18 min
- 7:55 AM – 5:13 PM
- Cloud cover
- 56%
- 12th clearest
- Wind
- 24 km/h
- 2nd windiest
- Solar energy
- 2.01 kWh/m²
- Travel score
- 4.6
- out of 10
Sintra is town seat of Sintra municipality, Lisbon District, Portugal.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Day-to-day highs hold fairly steady near 15°C through the month.
A typical December day in Sintra reaches about 15°C in the afternoon and slips back to 13°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 17°C. Set against its neighbours, December runs about 1°C cooler than November and about 1°C warmer than January.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Avg low (°C) | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 16 | 14 |
| 2 | 15 | 13 |
| 3 | 15 | 13 |
| 4 | 15 | 13 |
| 5 | 15 | 13 |
| 6 | 15 | 13 |
| 7 | 15 | 13 |
| 8 | 15 | 13 |
| 9 | 15 | 13 |
| 10 | 15 | 13 |
| 11 | 15 | 13 |
| 12 | 15 | 13 |
| 13 | 15 | 13 |
| 14 | 15 | 13 |
| 15 | 15 | 13 |
| 16 | 15 | 13 |
| 17 | 15 | 13 |
| 18 | 15 | 13 |
| 19 | 15 | 13 |
| 20 | 15 | 13 |
| 21 | 15 | 13 |
| 22 | 15 | 13 |
| 23 | 15 | 13 |
| 24 | 15 | 13 |
| 25 | 15 | 13 |
| 26 | 15 | 13 |
| 27 | 15 | 13 |
| 28 | 15 | 13 |
| 29 | 15 | 13 |
| 30 | 15 | 13 |
| 31 | 15 | 13 |
Sintra weather by month
How December compares with the rest of the year at a glance. December is the 9th-warmest and 2nd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 14° / 12° | 81 | 10.2 | 9.6 | 4.3 |
| Feb | 14° / 12° | 60 | 8.2 | 10.5 | 4.3 |
| Mar | 15° / 13° | 56 | 8.1 | 11.7 | 4.7 |
| Apr | 15° / 14° | 50 | 7.8 | 13 | 5.1 |
| May | 17° / 15° | 40 | 5.4 | 14.1 | 6.1 |
| Jun | 18° / 17° | 8 | 1.8 | 14.7 | 7.5 |
| Jul | 19° / 18° | 2 | 0.6 | 14.4 | 8.2 |
| Aug | 19° / 18° | 4 | 0.8 | 13.5 | 8.2 |
| Sep | 19° / 18° | 27 | 3.8 | 12.3 | 7.5 |
| Oct | 19° / 17° | 80 | 9 | 11 | 6.3 |
| Nov | 17° / 15° | 95 | 10.6 | 9.9 | 5.3 |
| Dec | 15° / 13° | 89 | 10.6 | 9.3 | 4.6 |
Cloud cover in December
The sky is clear or mostly clear about 35% of the time in December, the cloudiest month of the year.
Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 52%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 49 | 49 | 49 | 49 | 49 | 49 | 48 | 47 | 47 | 48 | 47 | 47 | 47 | 46 | 47 | 47 | 48 | 47 | 48 | 49 | 49 | 49 | 49 | 49 | 49 | 50 | 50 | 50 | 50 | 50 | 50 |
| Cloudier (%) | 51 | 51 | 51 | 51 | 51 | 51 | 52 | 53 | 53 | 52 | 53 | 53 | 53 | 54 | 53 | 53 | 52 | 53 | 52 | 51 | 51 | 51 | 51 | 51 | 51 | 50 | 50 | 50 | 50 | 50 | 50 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 49 | 51 |
| 2 | 49 | 51 |
| 3 | 49 | 51 |
| 4 | 49 | 51 |
| 5 | 49 | 51 |
| 6 | 49 | 51 |
| 7 | 48 | 52 |
| 8 | 47 | 53 |
| 9 | 47 | 53 |
| 10 | 48 | 52 |
| 11 | 47 | 53 |
| 12 | 47 | 53 |
| 13 | 47 | 53 |
| 14 | 46 | 54 |
| 15 | 47 | 53 |
| 16 | 47 | 53 |
| 17 | 48 | 52 |
| 18 | 47 | 53 |
| 19 | 48 | 52 |
| 20 | 49 | 51 |
| 21 | 49 | 51 |
| 22 | 49 | 51 |
| 23 | 49 | 51 |
| 24 | 49 | 51 |
| 25 | 49 | 51 |
| 26 | 50 | 50 |
| 27 | 50 | 50 |
| 28 | 50 | 50 |
| 29 | 50 | 50 |
| 30 | 50 | 50 |
| 31 | 50 | 50 |
Chance of precipitation in December
Sintra gets around 89 mm of rain over 10.6 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 34% and peaks near 37% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 36 | 35 | 35 | 35 | 34 | 34 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 34 | 35 | 35 | 35 | 36 | 36 | 36 | 37 | 37 | 37 |
| Rain chance (%) | |
|---|---|
| 1 | 36 |
| 2 | 35 |
| 3 | 35 |
| 4 | 35 |
| 5 | 34 |
| 6 | 34 |
| 7 | 33 |
| 8 | 33 |
| 9 | 33 |
| 10 | 33 |
| 11 | 33 |
| 12 | 33 |
| 13 | 33 |
| 14 | 33 |
| 15 | 33 |
| 16 | 33 |
| 17 | 33 |
| 18 | 33 |
| 19 | 34 |
| 20 | 34 |
| 21 | 34 |
| 22 | 34 |
| 23 | 35 |
| 24 | 35 |
| 25 | 35 |
| 26 | 36 |
| 27 | 36 |
| 28 | 36 |
| 29 | 37 |
| 30 | 37 |
| 31 | 37 |
Humidity in December
Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the dry band about 81% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 78 | 79 | 79 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 81 | 81 | 81 | 81 | 80 | 81 | 81 | 81 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 81 | 81 | 81 | 81 | 82 | 83 |
| Comfortable (%) | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 17 | 17 |
| Humid (%) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| 1 | 78 | 21 | 1 |
| 2 | 79 | 21 | 0 |
| 3 | 79 | 21 | 0 |
| 4 | 80 | 20 | 0 |
| 5 | 80 | 20 | 0 |
| 6 | 80 | 20 | 0 |
| 7 | 80 | 20 | 0 |
| 8 | 80 | 20 | 0 |
| 9 | 80 | 20 | 0 |
| 10 | 80 | 20 | 0 |
| 11 | 81 | 19 | 0 |
| 12 | 81 | 19 | 0 |
| 13 | 81 | 19 | 0 |
| 14 | 81 | 19 | 0 |
| 15 | 80 | 19 | 1 |
| 16 | 81 | 18 | 1 |
| 17 | 81 | 18 | 1 |
| 18 | 81 | 18 | 1 |
| 19 | 82 | 17 | 1 |
| 20 | 82 | 17 | 1 |
| 21 | 82 | 17 | 1 |
| 22 | 82 | 17 | 1 |
| 23 | 82 | 17 | 1 |
| 24 | 82 | 17 | 1 |
| 25 | 82 | 17 | 1 |
| 26 | 81 | 18 | 1 |
| 27 | 81 | 18 | 1 |
| 28 | 81 | 18 | 1 |
| 29 | 81 | 18 | 1 |
| 30 | 82 | 17 | 1 |
| 31 | 83 | 17 | 0 |
Wind in December
Winds average 24 km/h in December.
Across December, daily wind ranges from about 24 km/h on the calmest days to 25 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 24 | breezy |
| 2 | 24 | breezy |
| 3 | 24 | breezy |
| 4 | 24 | breezy |
| 5 | 24 | breezy |
| 6 | 24 | breezy |
| 7 | 24 | breezy |
| 8 | 24 | breezy |
| 9 | 24 | breezy |
| 10 | 24 | breezy |
| 11 | 24 | breezy |
| 12 | 24 | breezy |
| 13 | 24 | breezy |
| 14 | 24 | breezy |
| 15 | 24 | breezy |
| 16 | 24 | breezy |
| 17 | 24 | breezy |
| 18 | 24 | breezy |
| 19 | 25 | breezy |
| 20 | 25 | breezy |
| 21 | 25 | breezy |
| 22 | 25 | breezy |
| 23 | 25 | breezy |
| 24 | 25 | breezy |
| 25 | 25 | breezy |
| 26 | 24 | breezy |
| 27 | 24 | breezy |
| 28 | 24 | breezy |
| 29 | 24 | breezy |
| 30 | 24 | breezy |
| 31 | 24 | breezy |
Sunrise & sunset in December
Daylight runs from about 9 h 30 min at the start of December to 9 h 18 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 12 minutes over December. Sunrise moves from 7:43 AM to 8:01 AM, and sunset from 5:12 PM to 5:20 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.5 | 9.5 | 9.4 | 9.4 | 9.4 | 9.4 | 9.4 | 9.4 | 9.4 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 |
| Sunrise (AM) | 7:43 | 7:44 | 7:45 | 7:46 | 7:46 | 7:47 | 7:48 | 7:49 | 7:50 | 7:51 | 7:51 | 7:52 | 7:53 | 7:53 | 7:54 | 7:55 | 7:55 | 7:56 | 7:57 | 7:57 | 7:58 | 7:58 | 7:59 | 7:59 | 7:59 | 8:00 | 8:00 | 8:00 | 8:01 | 8:01 | 8:01 |
| Sunset (PM) | 5:12 | 5:12 | 5:11 | 5:11 | 5:11 | 5:11 | 5:11 | 5:11 | 5:11 | 5:11 | 5:11 | 5:12 | 5:12 | 5:12 | 5:12 | 5:13 | 5:13 | 5:13 | 5:14 | 5:14 | 5:14 | 5:15 | 5:15 | 5:16 | 5:16 | 5:17 | 5:18 | 5:18 | 5:19 | 5:20 | 5:20 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 9.5 | 7:43 | 5:12 |
| 2 | 9.5 | 7:44 | 5:12 |
| 3 | 9.4 | 7:45 | 5:11 |
| 4 | 9.4 | 7:46 | 5:11 |
| 5 | 9.4 | 7:46 | 5:11 |
| 6 | 9.4 | 7:47 | 5:11 |
| 7 | 9.4 | 7:48 | 5:11 |
| 8 | 9.4 | 7:49 | 5:11 |
| 9 | 9.4 | 7:50 | 5:11 |
| 10 | 9.3 | 7:51 | 5:11 |
| 11 | 9.3 | 7:51 | 5:11 |
| 12 | 9.3 | 7:52 | 5:12 |
| 13 | 9.3 | 7:53 | 5:12 |
| 14 | 9.3 | 7:53 | 5:12 |
| 15 | 9.3 | 7:54 | 5:12 |
| 16 | 9.3 | 7:55 | 5:13 |
| 17 | 9.3 | 7:55 | 5:13 |
| 18 | 9.3 | 7:56 | 5:13 |
| 19 | 9.3 | 7:57 | 5:14 |
| 20 | 9.3 | 7:57 | 5:14 |
| 21 | 9.3 | 7:58 | 5:14 |
| 22 | 9.3 | 7:58 | 5:15 |
| 23 | 9.3 | 7:59 | 5:15 |
| 24 | 9.3 | 7:59 | 5:16 |
| 25 | 9.3 | 7:59 | 5:16 |
| 26 | 9.3 | 8:00 | 5:17 |
| 27 | 9.3 | 8:00 | 5:18 |
| 28 | 9.3 | 8:00 | 5:18 |
| 29 | 9.3 | 8:01 | 5:19 |
| 30 | 9.3 | 8:01 | 5:20 |
| 31 | 9.3 | 8:01 | 5:20 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 2.01 kWh/m² — the year's lowest.
For context, solar energy here swings from a low near 2.01 kWh/m² to a high of 7.51 kWh/m² in July across the year — December's 2.01 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.1 | Moderate |
| 2 | 2.1 | Moderate |
| 3 | 2.1 | Moderate |
| 4 | 2.1 | Moderate |
| 5 | 2.1 | Moderate |
| 6 | 2.1 | Moderate |
| 7 | 2.0 | Moderate |
| 8 | 2.0 | Moderate |
| 9 | 2.0 | Moderate |
| 10 | 2.0 | Moderate |
| 11 | 2.0 | Moderate |
| 12 | 2.0 | Moderate |
| 13 | 2.0 | Moderate |
| 14 | 2.0 | Dim |
| 15 | 2.0 | Dim |
| 16 | 2.0 | Dim |
| 17 | 2.0 | Dim |
| 18 | 2.0 | Dim |
| 19 | 2.0 | Dim |
| 20 | 2.0 | Dim |
| 21 | 2.0 | Dim |
| 22 | 2.0 | Dim |
| 23 | 2.0 | Moderate |
| 24 | 2.0 | Moderate |
| 25 | 2.0 | Moderate |
| 26 | 2.0 | Moderate |
| 27 | 2.0 | Moderate |
| 28 | 2.0 | Moderate |
| 29 | 2.0 | Moderate |
| 30 | 2.0 | Moderate |
| 31 | 2.0 | Moderate |
Hazard calendar for Sintra
In December, Sintra sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
Sintra's rainy season runs October–April, when most of the year's rain falls.
Is December a good time to visit Sintra?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a reasonable time to visit Sintra for sightseeing.
What to pack for Sintra in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Sintra sees daytime highs around 15°C and nights near 13°C. Worth packing: a warm layer, rain gear and a windbreaker. About 11 days see rain.
Sea temperature near Sintra in December
The nearest coast averages about 16°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 20 km away) is warmest in September at about 19°C and coldest in February near 15°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 15 | 15 | 15 | 15 | 16 | 18 | 18 | 19 | 19 | 18 | 17 | 16 |
| Comfort | Cool | Bracing | Bracing | Cool | Cool | Cool | Cool | Cool | Cool | Cool | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 15 | Cool |
| Feb | 15 | Bracing |
| Mar | 15 | Bracing |
| Apr | 15 | Cool |
| May | 16 | Cool |
| Jun | 18 | Cool |
| Jul | 18 | Cool |
| Aug | 19 | Cool |
| Sep | 19 | Cool |
| Oct | 18 | Cool |
| Nov | 17 | Cool |
| Dec | 16 | Cool |
UV index in Sintra in December
Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Sintra peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 6 | 8 | 7 | 9 | 9 | 9 | 6 | 5 | 3 | 2 |
| Level | Low | Moderate | High | Very high | Very high | Very high | Very high | Very high | High | High | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 6 | High |
| Apr | 8 | Very high |
| May | 7 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 9 | Very high |
| Sep | 6 | High |
| Oct | 5 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Where is Sintra?
Sintra sits at 38.8°N, 9.4°W, 197 m above sea level, in Portugal. The nearest listed city is Algueirão, 3.0 km away.
Topography around Sintra
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sintra.
Within 3 km, the terrain around Sintra has significant variations in elevation — a maximum elevation change of 460 m around an average of 198 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 513 m; within 80 km, large variations in elevation — a maximum elevation change of 651 m.
The land around Sintra is covered by trees (49%), grassland (27%) and artificial surfaces (22%) within 3 km, water (28%), grassland (27%) and trees (24%) within 16 km, and water (47%) and grassland (24%) within 80 km.
Portugal travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / E / F
- 230 V · 50 Hz
- Prices
- ≈ 60% of US
- price level, 2025
- GDP per capita
- $32,082
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 95%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2022
- Road deaths
- 8.2
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 612
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sintra (38.801°, -9.3783°, elevation 197 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).