San Bartolomé in Winter
In winter (December, January and February), San Bartolomé sees average daytime highs around 18°C and overnight lows near 17°C, with 43 mm of rain over about 8 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Over the season highs ease from about 20°C in early December to 18°C by late February. The sky is clear or mostly clear about 49% of the time across winter, and the air most often feels dry.
Winter is San Bartolomé's weakest season of the year to visit on our travel score. San Bartolomé has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see San Bartolomé's year-round climate.
- Avg daytime high
- 18°C
- coldest season of the year
- Avg overnight low
- 17°C
- Rainfall
- 43 mm
- 8 wet days
- Avg wind
- 25 km/h
- Travel score
- 7.1
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in San Bartolomé in Winter
Over the season highs ease from about 20°C in early December to 18°C by late February.
A typical winter day in San Bartolomé reaches about 18°C and drops to 17°C overnight. The warmest of the three months is December, the coolest February.
San Bartolomé weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 18° / 17° | 12 | 2.3 | 10.4 | 7.1 |
| Feb | 18° / 16° | 12 | 2.5 | 11 | 6.9 |
| Mar | 18° / 17° | 9 | 1.8 | 11.8 | 7.2 |
| Apr | 18° / 17° | 3 | 0.8 | 12.7 | 7.5 |
| May | 19° / 18° | 1 | 0.3 | 13.4 | 7.7 |
| Jun | 20° / 19° | 0 | 0.1 | 13.8 | 8.1 |
| Jul | 21° / 21° | 0 | 0 | 13.7 | 8.5 |
| Aug | 22° / 21° | 0 | 0 | 13 | 8.8 |
| Sep | 23° / 22° | 3 | 0.4 | 12.2 | 8.7 |
| Oct | 22° / 21° | 11 | 1.8 | 11.3 | 8.3 |
| Nov | 21° / 20° | 12 | 2.2 | 10.6 | 7.7 |
| Dec | 19° / 18° | 19 | 2.8 | 10.2 | 7.4 |
Cloud cover in Winter
The sky is clear or mostly clear about 49% of the time across winter.
Chance of precipitation in Winter
San Bartolomé gets around 43 mm of rain over 8 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 25 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 10 h 18 min in early December to 11 h 18 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 3.8 kWh/m².
Hazard calendar for San Bartolomé
None of San Bartolomé's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
San Bartolomé sees seasonal dust haze (July–August), heaviest in July.
Is winter a good time to visit San Bartolomé?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is one of the better times to visit San Bartolomé for general sightseeing.
What to pack for San Bartolomé in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, San Bartolomé sees daytime highs around 18°C and nights near 17°C. Worth packing: sun protection and a windbreaker. About 8 days see rain.
Sea temperature near San Bartolomé in Winter
The nearest coast averages about 19°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 14 km away) is warmest in September at about 23°C and coldest in March near 18°C.
It's comfortable for a long swim from May 29 to Dec 19 — about 6.7 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 19 | 18 | 18 | 19 | 20 | 21 | 22 | 22 | 23 | 23 | 22 | 20 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 19 | Cool |
| Feb | 18 | Cool |
| Mar | 18 | Cool |
| Apr | 19 | Cool |
| May | 20 | Cool |
| Jun | 21 | Refreshing |
| Jul | 22 | Refreshing |
| Aug | 22 | Refreshing |
| Sep | 23 | Refreshing |
| Oct | 23 | Refreshing |
| Nov | 22 | Refreshing |
| Dec | 20 | Refreshing |
UV index in San Bartolomé in Winter
Clear-sky midday UV across winter averages around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Bartolomé peaks around July 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 5 | 9 | 10 | 9 | 10 | 11 | 10 | 8 | 8 | 4 | 3 |
| Level | Moderate | High | Very high | Very high | Very high | Very high | Extreme | Extreme | Very high | Very high | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 5 | High |
| Mar | 9 | Very high |
| Apr | 10 | Very high |
| May | 9 | Very high |
| Jun | 10 | Very high |
| Jul | 11 | Extreme |
| Aug | 10 | Extreme |
| Sep | 8 | Very high |
| Oct | 8 | Very high |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in San Bartolomé in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in San Bartolomé is worst in February — around 17 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (June, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 13 | 17 | 11 | 8 | 8 | 7 | 10 | 11 | 8 | 10 | 8 | 14 |
| Level | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Good | Good | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 17 | Moderate |
| Mar | 11 | Good |
| Apr | 8 | Good |
| May | 8 | Good |
| Jun | 7 | Good |
| Jul | 10 | Good |
| Aug | 11 | Good |
| Sep | 8 | Good |
| Oct | 10 | Good |
| Nov | 8 | Good |
| Dec | 14 | Moderate |
Where is San Bartolomé?
San Bartolomé sits at 29.0°N, 13.6°W, 275 m above sea level, in Spain. The nearest listed city is Tías, 5.0 km away.
Topography around San Bartolomé
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Bartolomé.
Within 3 km, the terrain around San Bartolomé has significant variations in elevation — a maximum elevation change of 426 m around an average of 246 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 668 m; within 80 km, large variations in elevation — a maximum elevation change of 669 m.
The land around San Bartolomé is covered by grassland (62%) and bare terrain (22%) within 3 km, water (35%), bare terrain (31%) and grassland (28%) within 16 km, and water (84%) within 80 km.
Spain travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 65% of US
- price level, 2025
- GDP per capita
- $38,627
- 2025
- Happiness
- 6.5 / 10
- World Happiness, 2025
- Safe drinking water
- 99%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2023
- Road deaths
- 3.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 540
- 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 San Bartolomé (29.0009°, -13.613°, elevation 275 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.