Sliema in Winter
In winter (December, January and February), Sliema sees average daytime highs around 15°C and overnight lows near 14°C, with 176 mm of rain over about 27 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 18°C in early December to 15°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 Sliema's weakest season of the year to visit on our travel score. For the whole year in context, see Sliema's year-round climate.
- Avg daytime high
- 15°C
- coldest season of the year
- Avg overnight low
- 14°C
- Rainfall
- 176 mm
- 27 wet days
- Avg wind
- 26 km/h
- Travel score
- 5.0
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Sliema in Winter
Over the season highs ease from about 18°C in early December to 15°C by late February.
A typical winter day in Sliema reaches about 15°C and drops to 14°C overnight. The warmest of the three months is December, the coolest February.
Sliema 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 | 15° / 13° | 54 | 9.4 | 9.8 | 4.7 |
| Feb | 14° / 13° | 50 | 8 | 10.6 | 4.7 |
| Mar | 15° / 14° | 32 | 5.4 | 11.7 | 5.4 |
| Apr | 17° / 15° | 14 | 3.3 | 12.9 | 6.5 |
| May | 19° / 18° | 6 | 1.4 | 13.9 | 8.0 |
| Jun | 23° / 22° | 3 | 0.4 | 14.4 | 9.3 |
| Jul | 26° / 24° | 0 | 0.1 | 14.2 | 9.5 |
| Aug | 27° / 25° | 3 | 0.6 | 13.4 | 9.0 |
| Sep | 25° / 24° | 33 | 4 | 12.2 | 8.4 |
| Oct | 23° / 21° | 52 | 6.5 | 11.1 | 7.7 |
| Nov | 20° / 18° | 69 | 9.3 | 10.1 | 6.6 |
| Dec | 17° / 15° | 72 | 9.8 | 9.6 | 5.6 |
Cloud cover in Winter
The sky is clear or mostly clear about 49% of the time across winter.
Chance of precipitation in Winter
Sliema gets around 176 mm of rain over 27 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 26 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 9 h 42 min in early December to 11 h 06 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 2.9 kWh/m².
Hazard calendar for Sliema
None of Sliema's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Sliema sees seasonal dust haze (April–June), heaviest in April.
Is winter a good time to visit Sliema?
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 a reasonable time to visit Sliema for sightseeing.
What to pack for Sliema in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Sliema sees daytime highs around 15°C and nights near 14°C. Worth packing: a warm layer, rain gear and a windbreaker. About 27 days see rain.
Sea temperature near Sliema in Winter
The nearest coast averages about 17°C across winter — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 16 | 15 | 15 | 16 | 19 | 22 | 25 | 27 | 26 | 24 | 21 | 18 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Refreshing | Warm | Warm | Warm | Refreshing | Refreshing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 16 | Cool |
| Feb | 15 | Cool |
| Mar | 15 | Cool |
| Apr | 16 | Cool |
| May | 19 | Cool |
| Jun | 22 | Refreshing |
| Jul | 25 | Warm |
| Aug | 27 | Warm |
| Sep | 26 | Warm |
| Oct | 24 | Refreshing |
| Nov | 21 | Refreshing |
| Dec | 18 | Cool |
UV index in Sliema in Winter
Clear-sky midday UV across winter averages around 3. 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 4 | 6 | 5 | 6 | 10 | 10 | 9 | 7 | 6 | 3 | 2 |
| Level | Low | Moderate | High | Moderate | High | Very high | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 4 | Moderate |
| Mar | 6 | High |
| Apr | 5 | Moderate |
| May | 6 | High |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 9 | Very high |
| Sep | 7 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Air quality in Sliema 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 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 14 | 15 | 14 | 12 | 9 | 9 | 9 | 9 | 11 | 10 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 14 | Moderate |
| Mar | 15 | Moderate |
| Apr | 14 | Moderate |
| May | 12 | Good |
| Jun | 9 | Good |
| Jul | 9 | Good |
| Aug | 9 | Good |
| Sep | 9 | Good |
| Oct | 11 | Good |
| Nov | 10 | Good |
| Dec | 10 | Good |
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.
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.
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
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.