Sant Antoni de Portmany weather in January

In January, Sant Antoni de Portmany sees average daytime highs of 15°C and overnight lows near 11°C, with 31 mm of rain across 5.5 wet days and about 9.6 hours of daylight. It is the 12th-warmest and 5th-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 49% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 18 min at the start of January to 10 hours by month's end. Set against the rest of the year, January is Sant Antoni de Portmany's 9th-clearest and 4th-windiest month. For the whole year in context, see Sant Antoni de Portmany's year-round climate.

Daytime high
15°
12th warmest
Overnight low
11°
2nd coldest
Rainfall
31 mm
5.5 wet days
Daylight
9 h 30 min
8:18 AM – 5:50 PM
Cloud cover
44%
9th clearest
Wind
18 km/h
4th windiest
Solar energy
2.52 kWh/m²
Travel score
5.3
out of 10

Sant Antoni de Portmany is municipal capital of the homonymous municipality of Ibiza, Spain.

Air quality
Good
PM10 16.8 µg/m³ · 2019
Density
172/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 15°C through the month.

A typical January day in Sant Antoni de Portmany reaches about 15°C in the afternoon and slips back to 11°C overnight — a 4°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, January runs about 1°C cooler than December and on par with February.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
11612
21512
31512
41511
51511
61511
71511
81511
91511
101511
111511
121511
131511
141511
151511
161511
171511
181511
191511
201511
211511
221511
231511
241511
251511
261511
271511
281511
291511
301511
311511

Sant Antoni de Portmany weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan15° / 11°315.59.65.3
Feb15° / 11°254.810.55.4
Mar17° / 12°214.111.76.4
Apr19° / 14°254.7137.1
May22° / 17°20314.18.1
Jun26° / 21°71.714.78.7
Jul29° / 23°30.414.57.7
Aug29° / 24°161.913.56.9
Sep27° / 22°414.612.37.7
Oct23° / 19°465.5117.8
Nov19° / 15°476.79.96.7
Dec16° / 12°365.39.35.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 17% of January, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26733
36733
46733
56733
66733
76733
86733
96733
106733
116733
126733
136634
146634
156634
166634
176535
186535
196535
206535
216535
226436
236436
246535
256535
266436
276535
286535
296634
306634
316634

Chance of precipitation in January

Any precipitation

Sant Antoni de Portmany gets around 31 mm of rain over 5.5 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 17% and peaks near 23% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
112
212
312
412
512
612
712
813
913
1013
1114
1214
1315
1416
1516
1617
1718
1819
1919
2020
2121
2222
2322
2422
2523
2623
2723
2823
2923
3022
3122

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1973
2973
3982
4982
5982
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in January

Winds average 18 km/h in January.

Across January, daily wind ranges from about 17 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze
3118light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 18 min at the start of January to 10 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over January. Sunrise moves from 8:19 AM to 8:09 AM, and sunset from 5:37 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.38:195:37
29.38:195:38
39.38:195:39
49.38:195:40
59.48:195:40
69.48:195:41
79.48:195:42
89.48:195:43
99.48:195:44
109.48:195:45
119.48:195:46
129.58:195:47
139.58:185:48
149.58:185:49
159.58:185:49
169.58:185:50
179.68:175:52
189.68:175:53
199.68:175:54
209.68:165:55
219.78:165:56
229.78:155:57
239.78:155:58
249.78:145:59
259.88:146:00
269.88:136:01
279.88:126:02
289.98:126:03
299.98:116:05
309.98:106:06
3110.08:096:07

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.52 kWh/m².

For context, solar energy here swings from a low near 2.18 kWh/m² to a high of 7.57 kWh/m² in June across the year — January's 2.52 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.3Moderate
22.3Moderate
32.3Moderate
42.3Moderate
52.3Moderate
62.3Moderate
72.4Moderate
82.4Moderate
92.4Moderate
102.4Moderate
112.4Moderate
122.4Moderate
132.5Moderate
142.5Moderate
152.5Moderate
162.5Moderate
172.5Moderate
182.5Moderate
192.6Moderate
202.6Moderate
212.6Moderate
222.6Moderate
232.7Moderate
242.7Moderate
252.7Moderate
262.8Moderate
272.8Moderate
282.8Moderate
292.9Moderate
302.9Moderate
312.9Moderate
Planning a trip in January

Is January a good time to visit Sant Antoni de Portmany?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.3
Sightseeing
12th-best month of the year
0.1
Beach & pool
12th-best month of the year

January is a reasonable time to visit Sant Antoni de Portmany for sightseeing.

What to pack for Sant Antoni de Portmany in January

From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In January, Sant Antoni de Portmany sees daytime highs around 15°C and nights near 11°C. Worth packing: a warm layer. About 6 days see rain.

a warm layer

Sea temperature near Sant Antoni de Portmany in January

The nearest coast averages about 15°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 13 km away) is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 2 to Nov 5 — about 5.2 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar15Bracing
Apr16Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Sant Antoni de Portmany in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sant Antoni de Portmany peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateHighVery highHighModerateLowJul 16UV 9Dec 18UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5High
Apr4Moderate
May7High
Jun9Very high
Jul10Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov2Moderate
Dec2Low
Location & terrain

Where is Sant Antoni de Portmany?

Sant Antoni de Portmany sits at 39.0°N, 1.3°E, 14 m above sea level, in Spain. The nearest listed city is Ibiza, 14 km away.

CalpCalviàOlivaAltea

Topography around Sant Antoni de Portmany

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sant Antoni de Portmany.

Within 3 km, the terrain around Sant Antoni de Portmany has only modest variations in elevation — a maximum elevation change of 240 m around an average of 34 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 485 m; within 80 km, significant variations in elevation — a maximum elevation change of 477 m.

The land around Sant Antoni de Portmany is covered by water (25%), trees (23%) and grassland (23%) within 3 km, water (51%) and trees (26%) within 16 km, and water (93%) within 80 km.

3 km
240 m
16 km
485 m
80 km
477 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Ibiza 14 km · Santa Eulària des Riu 20 km · Javea 101 km · Denia 105 km · Calp 115 km · Calvià 122 km · Oliva 123 km · Altea 125 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
Roman Catholic 58%atheist 16%agnostic 11%non-believer 11%

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 Sant Antoni de Portmany (38.9807°, 1.3036°, elevation 14 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).