St. Julian's weather in December
In December, St. Julian's sees average daytime highs of 17°C and overnight lows near 15°C, with 69 mm of rain across 9.5 wet days and about 9.6 hours of daylight. It is the 8th-warmest and 2nd-wettest month of the year here.
Highs ease over the month, from about 18°C in the first days to 16°C by the end. The sky is clear or mostly clear about 48% of the time in December, and the air most often feels dry.
Daylight stretches from about 9 h 42 min at the start of December to 9 h 36 min by month's end. Set against the rest of the year, December is St. Julian's's 11th-clearest and 1st-windiest month. For the whole year in context, see St. Julian's's year-round climate.
- Daytime high
- 17°
- 8th warmest
- Overnight low
- 15°
- 4th coldest
- Rainfall
- 69 mm
- 9.5 wet days
- Daylight
- 9 h 36 min
- 7:11 AM – 4:45 PM
- Cloud cover
- 46%
- 11th clearest
- Wind
- 27 km/h
- 1st windiest
- Solar energy
- 2.31 kWh/m²
- Travel score
- 5.6
- out of 10
St. Julian's is locality in Malta.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Highs ease over the month, from about 18°C in the first days to 16°C by the end.
A typical December day in St. Julian's reaches about 17°C in the afternoon and slips back to 15°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 19°C. Set against its neighbours, December runs about 3°C cooler than November and about 2°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) | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Avg low (°C) | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 18 | 16 |
| 2 | 18 | 16 |
| 3 | 18 | 16 |
| 4 | 18 | 16 |
| 5 | 18 | 16 |
| 6 | 18 | 16 |
| 7 | 17 | 16 |
| 8 | 17 | 16 |
| 9 | 17 | 16 |
| 10 | 17 | 16 |
| 11 | 17 | 15 |
| 12 | 17 | 15 |
| 13 | 17 | 15 |
| 14 | 17 | 15 |
| 15 | 17 | 15 |
| 16 | 17 | 15 |
| 17 | 17 | 15 |
| 18 | 17 | 15 |
| 19 | 16 | 15 |
| 20 | 16 | 15 |
| 21 | 16 | 15 |
| 22 | 16 | 15 |
| 23 | 16 | 15 |
| 24 | 16 | 14 |
| 25 | 16 | 14 |
| 26 | 16 | 14 |
| 27 | 16 | 14 |
| 28 | 16 | 14 |
| 29 | 16 | 14 |
| 30 | 16 | 14 |
| 31 | 16 | 14 |
St. Julian's weather by month
How December compares with the rest of the year at a glance. December is the 8th-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 | 15° / 13° | 53 | 9.5 | 9.8 | 4.8 |
| Feb | 15° / 13° | 51 | 8 | 10.6 | 4.7 |
| Mar | 15° / 14° | 34 | 5.5 | 11.7 | 5.4 |
| Apr | 17° / 15° | 15 | 3.4 | 12.9 | 6.5 |
| May | 20° / 18° | 4 | 1.2 | 13.9 | 8.1 |
| Jun | 23° / 22° | 2 | 0.4 | 14.4 | 9.3 |
| Jul | 26° / 24° | 0 | 0.1 | 14.2 | 9.4 |
| Aug | 27° / 25° | 4 | 0.7 | 13.4 | 9.0 |
| Sep | 25° / 24° | 35 | 4.2 | 12.2 | 8.4 |
| Oct | 23° / 21° | 56 | 6.8 | 11.1 | 7.7 |
| Nov | 20° / 18° | 70 | 9.5 | 10.1 | 6.6 |
| Dec | 17° / 15° | 69 | 9.5 | 9.6 | 5.6 |
Cloud cover in December
The sky is clear or mostly clear about 48% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 20% of December, with mostly cloudy or overcast conditions the remaining 33%.
| 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 (%) | 65 | 65 | 65 | 65 | 67 | 67 | 68 | 68 | 67 | 68 | 68 | 68 | 67 | 68 | 68 | 68 | 67 | 67 | 67 | 67 | 66 | 66 | 67 | 67 | 67 | 67 | 67 | 68 | 69 | 69 | 69 |
| Cloudier (%) | 35 | 35 | 35 | 35 | 33 | 33 | 32 | 32 | 33 | 32 | 32 | 32 | 33 | 32 | 32 | 32 | 33 | 33 | 33 | 33 | 34 | 34 | 33 | 33 | 33 | 33 | 33 | 32 | 31 | 31 | 31 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 65 | 35 |
| 2 | 65 | 35 |
| 3 | 65 | 35 |
| 4 | 65 | 35 |
| 5 | 67 | 33 |
| 6 | 67 | 33 |
| 7 | 68 | 32 |
| 8 | 68 | 32 |
| 9 | 67 | 33 |
| 10 | 68 | 32 |
| 11 | 68 | 32 |
| 12 | 68 | 32 |
| 13 | 67 | 33 |
| 14 | 68 | 32 |
| 15 | 68 | 32 |
| 16 | 68 | 32 |
| 17 | 67 | 33 |
| 18 | 67 | 33 |
| 19 | 67 | 33 |
| 20 | 67 | 33 |
| 21 | 66 | 34 |
| 22 | 66 | 34 |
| 23 | 67 | 33 |
| 24 | 67 | 33 |
| 25 | 67 | 33 |
| 26 | 67 | 33 |
| 27 | 67 | 33 |
| 28 | 68 | 32 |
| 29 | 69 | 31 |
| 30 | 69 | 31 |
| 31 | 69 | 31 |
Chance of precipitation in December
St. Julian's gets around 69 mm of rain over 9.5 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 30% and peaks near 33% 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 (%) | 33 | 33 | 33 | 33 | 33 | 32 | 32 | 31 | 31 | 31 | 31 | 31 | 30 | 30 | 30 | 30 | 29 | 29 | 28 | 28 | 28 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Rain chance (%) | |
|---|---|
| 1 | 33 |
| 2 | 33 |
| 3 | 33 |
| 4 | 33 |
| 5 | 33 |
| 6 | 32 |
| 7 | 32 |
| 8 | 31 |
| 9 | 31 |
| 10 | 31 |
| 11 | 31 |
| 12 | 31 |
| 13 | 30 |
| 14 | 30 |
| 15 | 30 |
| 16 | 30 |
| 17 | 29 |
| 18 | 29 |
| 19 | 28 |
| 20 | 28 |
| 21 | 28 |
| 22 | 29 |
| 23 | 29 |
| 24 | 30 |
| 25 | 30 |
| 26 | 30 |
| 27 | 30 |
| 28 | 30 |
| 29 | 30 |
| 30 | 30 |
| 31 | 30 |
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 80% 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 (%) | 62 | 64 | 66 | 68 | 70 | 72 | 74 | 76 | 77 | 77 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 83 | 84 | 84 | 84 | 85 | 85 | 86 | 86 | 87 | 87 | 88 | 88 | 88 | 88 |
| Comfortable (%) | 30 | 29 | 28 | 26 | 25 | 24 | 22 | 21 | 20 | 20 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 12 |
| Humid (%) | 8 | 7 | 6 | 6 | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| 1 | 62 | 30 | 8 |
| 2 | 64 | 29 | 7 |
| 3 | 66 | 28 | 6 |
| 4 | 68 | 26 | 6 |
| 5 | 70 | 25 | 5 |
| 6 | 72 | 24 | 4 |
| 7 | 74 | 22 | 4 |
| 8 | 76 | 21 | 3 |
| 9 | 77 | 20 | 3 |
| 10 | 77 | 20 | 3 |
| 11 | 79 | 19 | 2 |
| 12 | 80 | 18 | 2 |
| 13 | 81 | 18 | 1 |
| 14 | 81 | 18 | 1 |
| 15 | 82 | 17 | 1 |
| 16 | 82 | 17 | 1 |
| 17 | 82 | 17 | 1 |
| 18 | 83 | 17 | 0 |
| 19 | 84 | 16 | 0 |
| 20 | 84 | 16 | 0 |
| 21 | 84 | 16 | 0 |
| 22 | 85 | 15 | 0 |
| 23 | 85 | 15 | 0 |
| 24 | 86 | 14 | 0 |
| 25 | 86 | 14 | 0 |
| 26 | 87 | 13 | 0 |
| 27 | 87 | 13 | 0 |
| 28 | 88 | 12 | 0 |
| 29 | 88 | 12 | 0 |
| 30 | 88 | 12 | 0 |
| 31 | 88 | 12 | 0 |
Wind in December
Winds average 27 km/h in December, the windiest month of the year.
Across December, daily wind ranges from about 26 km/h on the calmest days to 27 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) | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
| 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 | 26 | breezy |
| 2 | 26 | breezy |
| 3 | 26 | breezy |
| 4 | 26 | breezy |
| 5 | 26 | breezy |
| 6 | 26 | breezy |
| 7 | 26 | breezy |
| 8 | 26 | breezy |
| 9 | 26 | breezy |
| 10 | 26 | breezy |
| 11 | 27 | breezy |
| 12 | 27 | breezy |
| 13 | 27 | breezy |
| 14 | 27 | breezy |
| 15 | 27 | breezy |
| 16 | 27 | breezy |
| 17 | 27 | breezy |
| 18 | 27 | breezy |
| 19 | 27 | breezy |
| 20 | 27 | breezy |
| 21 | 27 | breezy |
| 22 | 27 | breezy |
| 23 | 27 | breezy |
| 24 | 27 | breezy |
| 25 | 27 | breezy |
| 26 | 27 | breezy |
| 27 | 27 | breezy |
| 28 | 27 | breezy |
| 29 | 27 | breezy |
| 30 | 27 | breezy |
| 31 | 27 | breezy |
Sunrise & sunset in December
Daylight runs from about 9 h 42 min at the start of December to 9 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 6 minutes over December. Sunrise moves from 7:00 AM to 7:17 AM, and sunset from 4:44 PM to 4:53 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) | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 |
| Sunrise (AM) | 7:00 | 7:00 | 7:01 | 7:02 | 7:03 | 7:04 | 7:05 | 7:05 | 7:06 | 7:07 | 7:08 | 7:08 | 7:09 | 7:10 | 7:10 | 7:11 | 7:12 | 7:12 | 7:13 | 7:13 | 7:14 | 7:14 | 7:15 | 7:15 | 7:16 | 7:16 | 7:16 | 7:17 | 7:17 | 7:17 | 7:17 |
| Sunset (PM) | 4:44 | 4:44 | 4:44 | 4:44 | 4:44 | 4:44 | 4:44 | 4:44 | 4:44 | 4:44 | 4:44 | 4:44 | 4:45 | 4:45 | 4:45 | 4:45 | 4:46 | 4:46 | 4:46 | 4:47 | 4:47 | 4:48 | 4:48 | 4:49 | 4:49 | 4:50 | 4:50 | 4:51 | 4:52 | 4:52 | 4:53 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 9.7 | 7:00 | 4:44 |
| 2 | 9.7 | 7:00 | 4:44 |
| 3 | 9.7 | 7:01 | 4:44 |
| 4 | 9.7 | 7:02 | 4:44 |
| 5 | 9.7 | 7:03 | 4:44 |
| 6 | 9.7 | 7:04 | 4:44 |
| 7 | 9.7 | 7:05 | 4:44 |
| 8 | 9.6 | 7:05 | 4:44 |
| 9 | 9.6 | 7:06 | 4:44 |
| 10 | 9.6 | 7:07 | 4:44 |
| 11 | 9.6 | 7:08 | 4:44 |
| 12 | 9.6 | 7:08 | 4:44 |
| 13 | 9.6 | 7:09 | 4:45 |
| 14 | 9.6 | 7:10 | 4:45 |
| 15 | 9.6 | 7:10 | 4:45 |
| 16 | 9.6 | 7:11 | 4:45 |
| 17 | 9.6 | 7:12 | 4:46 |
| 18 | 9.6 | 7:12 | 4:46 |
| 19 | 9.6 | 7:13 | 4:46 |
| 20 | 9.6 | 7:13 | 4:47 |
| 21 | 9.6 | 7:14 | 4:47 |
| 22 | 9.6 | 7:14 | 4:48 |
| 23 | 9.6 | 7:15 | 4:48 |
| 24 | 9.6 | 7:15 | 4:49 |
| 25 | 9.6 | 7:16 | 4:49 |
| 26 | 9.6 | 7:16 | 4:50 |
| 27 | 9.6 | 7:16 | 4:50 |
| 28 | 9.6 | 7:17 | 4:51 |
| 29 | 9.6 | 7:17 | 4:52 |
| 30 | 9.6 | 7:17 | 4:52 |
| 31 | 9.6 | 7:17 | 4:53 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 2.31 kWh/m² — the year's lowest.
For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 7.64 kWh/m² in June across the year — December's 2.31 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) | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.4 | Moderate |
| 2 | 2.4 | Moderate |
| 3 | 2.4 | Moderate |
| 4 | 2.4 | Moderate |
| 5 | 2.4 | Moderate |
| 6 | 2.4 | Moderate |
| 7 | 2.3 | Moderate |
| 8 | 2.3 | Moderate |
| 9 | 2.3 | Moderate |
| 10 | 2.3 | Moderate |
| 11 | 2.3 | Moderate |
| 12 | 2.3 | Moderate |
| 13 | 2.3 | Moderate |
| 14 | 2.3 | Moderate |
| 15 | 2.3 | Moderate |
| 16 | 2.3 | Moderate |
| 17 | 2.3 | Moderate |
| 18 | 2.3 | Moderate |
| 19 | 2.3 | Moderate |
| 20 | 2.3 | Moderate |
| 21 | 2.3 | Moderate |
| 22 | 2.3 | Moderate |
| 23 | 2.3 | Moderate |
| 24 | 2.3 | Moderate |
| 25 | 2.3 | Moderate |
| 26 | 2.3 | Moderate |
| 27 | 2.4 | Moderate |
| 28 | 2.4 | Moderate |
| 29 | 2.4 | Moderate |
| 30 | 2.4 | Moderate |
| 31 | 2.4 | Moderate |
Hazard calendar for St. Julian's
None of St. Julian's's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
St. Julian's sees seasonal dust haze (April–June), heaviest in April.
Is December a good time to visit St. Julian's?
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 St. Julian's for sightseeing.
What to pack for St. Julian's in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, St. Julian's sees daytime highs around 17°C and nights near 15°C. Worth packing: a warm layer, rain gear and a windbreaker. About 10 days see rain.
Sea temperature near St. Julian's in December
The nearest coast averages about 18°C in December — 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 February near 15°C.
It's comfortable for a long swim from May 29 to Nov 27 — 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 St. Julian's 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 St. Julian's 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 St. Julian's in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in St. Julian's 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 St. Julian's?
St. Julian's sits at 35.9°N, 14.5°E, 0 m above sea level, in Malta. The nearest listed city is Sliema, 1.0 km away.
Topography around St. Julian's
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of St. Julian's.
Within 3 km, the terrain around St. Julian's has only modest variations in elevation — a maximum elevation change of 143 m around an average of 30 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 249 m.
The land around St. Julian's is covered by water (42%) 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 St. Julian's (35.9184°, 14.4898°, elevation 0 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).