Sliema weather in January

In January, Sliema sees average daytime highs of 15°C and overnight lows near 13°C, with 54 mm of rain across 9.4 wet days and about 9.8 hours of daylight. It is the 11th-warmest and 3rd-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 46% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 36 min at the start of January to 10 h 12 min by month's end. Set against the rest of the year, January is Sliema's 10th-clearest and 3rd-windiest month. For the whole year in context, see Sliema's year-round climate.

Daytime high
15°
11th warmest
Overnight low
13°
2nd coldest
Rainfall
54 mm
9.4 wet days
Daylight
9 h 48 min
7:17 AM – 5:06 PM
Cloud cover
46%
10th clearest
Wind
26 km/h
3rd windiest
Solar energy
2.68 kWh/m²
Travel score
4.7
out of 10

Sliema is resort town on the east coast of the Mediterranean island of Malta.

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 Sliema reaches about 15°C in the afternoon and slips back to 13°C overnight — a 1°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 2°C cooler than December and on par with February.

10°13°15°18°20°151015202531
Avg high (°C)Avg low (°C)
11514
21514
31514
41514
51514
61514
71514
81514
91514
101514
111514
121514
131514
141514
151513
161513
171513
181513
191513
201513
211513
221513
231513
241513
251513
261513
271513
281513
291513
301513
311513

Sliema weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan15° / 13°549.49.84.7
Feb14° / 13°50810.64.7
Mar15° / 14°325.411.75.4
Apr17° / 15°143.312.96.5
May19° / 18°61.413.98.0
Jun23° / 22°30.414.49.3
Jul26° / 24°00.114.29.5
Aug27° / 25°30.613.49.0
Sep25° / 24°33412.28.4
Oct23° / 21°526.511.17.7
Nov20° / 18°699.310.16.6
Dec17° / 15°729.89.65.6

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 21% of January, with mostly cloudy or overcast conditions the remaining 33%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16931
27030
37030
47030
57030
66931
76931
86931
96832
106733
116733
126634
136535
146535
156436
166436
176436
186436
196436
206436
216436
226535
236535
246634
256733
266733
276832
286832
296931
307030
317030

Chance of precipitation in January

Any precipitation

Sliema gets around 54 mm of rain over 9.4 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 31% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
131
230
330
430
530
629
729
829
929
1029
1129
1229
1329
1430
1530
1631
1732
1832
1933
2033
2133
2233
2333
2433
2533
2633
2733
2833
2932
3032
3132

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 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
19010
29010
39010
49010
59010
69010
7919
8919
9919
10919
11928
12928
13928
14937
15937
16937
17946
18946
19946
20955
21955
22955
23955
24955
25955
26955
27955
28955
29955
30964
31964

Wind in January

Winds average 26 km/h in January.

Across January, daily wind ranges from about 25 km/h on the calmest days to 26 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
126breezy
226breezy
326breezy
426breezy
526breezy
626breezy
725breezy
825breezy
925breezy
1025breezy
1125breezy
1225breezy
1325breezy
1425breezy
1525breezy
1625breezy
1725breezy
1825breezy
1925breezy
2026breezy
2126breezy
2226breezy
2326breezy
2426breezy
2526breezy
2626breezy
2726breezy
2826breezy
2926breezy
3026breezy
3126breezy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 36 min at the start of January to 10 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over January. Sunrise moves from 7:17 AM to 7:10 AM, and sunset from 4:53 PM to 5:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.67:174:53
29.67:174:54
39.67:174:55
49.67:184:55
59.67:184:56
69.77:184:57
79.77:184:58
89.77:184:59
99.77:184:59
109.77:185:00
119.77:185:01
129.77:185:02
139.87:175:03
149.87:175:04
159.87:175:05
169.87:175:06
179.87:175:07
189.97:165:08
199.97:165:09
209.97:165:09
219.97:155:10
229.97:155:11
2310.07:155:12
2410.07:145:13
2510.07:145:14
2610.07:135:15
2710.17:135:16
2810.17:125:17
2910.17:115:19
3010.17:115:20
3110.27:105:21

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.68 kWh/m².

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 7.63 kWh/m² in June across the year — January's 2.68 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.4Moderate
32.5Moderate
42.5Moderate
52.5Moderate
62.5Moderate
72.5Moderate
82.5Moderate
92.6Moderate
102.6Moderate
112.6Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.6Moderate
162.7Moderate
172.7Moderate
182.7Moderate
192.7Moderate
202.7Moderate
212.8Moderate
222.8Moderate
232.8Moderate
242.8Moderate
252.9Moderate
262.9Moderate
272.9Moderate
283.0Moderate
293.0Moderate
303.0Moderate
313.1Moderate
Planning a trip in January

Hazard calendar for Sliema

In seasonPeak

None of Sliema's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Sliema sees seasonal dust haze (April–June), heaviest in April.

Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Sliema?

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

4.7
Sightseeing
11th-best month of the year
0.1
Beach & pool
11th-best month of the year

January is a reasonable time to visit Sliema for sightseeing.

What to pack for Sliema in January

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

In January, Sliema sees daytime highs around 15°C and nights near 13°C. Worth packing: a warm layer, rain gear and a windbreaker. About 9 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Sliema in January

The nearest coast averages about 16°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 27°C and coldest in March near 15°C.

It's comfortable for a long swim from May 29 to Nov 25 — about 6 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar15Cool
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Refreshing
Nov21Refreshing
Dec18Cool

UV index in Sliema 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 Sliema peaks around July 13 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighHighVery highHighModerateJul 13UV 10Jan 10UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar6High
Apr5Moderate
May6High
Jun10Very high
Jul10Very high
Aug9Very high
Sep7Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Sliema in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Sliema is worst in March — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (July, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 1615 µg/m³Jul 229 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb14Moderate
Mar15Moderate
Apr14Moderate
May12Good
Jun9Good
Jul9Good
Aug9Good
Sep9Good
Oct11Good
Nov10Good
Dec10Good
Location & terrain

Where is Sliema?

Sliema sits at 35.9°N, 14.5°E, 40 m above sea level, in Malta. The nearest listed city is St. Julian's, 1.0 km away.

BirkirkaraQormiŻabbarMostaMarsaxlokkSan Pawl il-Baħar

Topography around Sliema

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sliema.

Within 3 km, the terrain around Sliema has only modest variations in elevation — a maximum elevation change of 121 m around an average of 18 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 253 m; within 80 km, only modest variations in elevation — a maximum elevation change of 246 m.

The land around Sliema is covered by water (51%) and artificial surfaces (38%) within 3 km, water (70%) within 16 km, and water (96%) within 80 km.

3 km
121 m
16 km
253 m
80 km
246 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: St. Julian's 1.0 km · Valletta 2.0 km · Birkirkara 4.0 km · Qormi 5.0 km · Żabbar 5.0 km · Mosta 7.0 km · Marsaxlokk 9.0 km · San Pawl il-Baħar 9.0 km

Malta travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type G
230 V · 50 Hz
Prices
≈ 66% of US
price level, 2025
GDP per capita
$47,907
2025
Happiness
6.4 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.6
per 100k, 2023
Road deaths
4.1
per 100k/yr, 2019
Income group
High
World Bank
Religion
Roman Catholic more than 90%

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 Sliema (35.9125°, 14.5017°, elevation 40 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).