Mellieħa weather in May

In May, Mellieħa sees average daytime highs of 19°C and overnight lows near 18°C, with 5 mm of rain across 1.1 wet days and about 13.9 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 18°C in the first days to 21°C by the end. The sky is clear or mostly clear about 72% of the time in May, and the air most often feels humid.

Daylight stretches from about 13 h 24 min at the start of May to 14 h 12 min by month's end. Set against the rest of the year, May is Mellieħa's 5th-clearest and 7th-windiest month. For the whole year in context, see Mellieħa's year-round climate.

Daytime high
19°
7th warmest
Overnight low
18°
6th coldest
Rainfall
5 mm
1.1 wet days
Daylight
13 h 54 min
5:02 AM – 6:56 PM
Cloud cover
27%
5th clearest
Wind
20 km/h
7th windiest
Solar energy
7.09 kWh/m²
Travel score
8.1
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 18°C in the first days to 21°C by the end.

A typical May day in Mellieħa reaches about 19°C in the afternoon and slips back to 18°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 21°C. Set against its neighbours, May runs about 3°C warmer than April and about 4°C cooler than June.

15°18°20°23°25°151015202531
Avg high (°C)Avg low (°C)
11817
21817
31817
41817
51817
61817
71917
81917
91917
101918
111918
121918
131918
141918
151918
161918
172018
182018
192018
202019
212019
222019
232019
242019
252019
262019
272119
282119
292119
302120
312120

Mellieħa weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan15° / 14°549.59.84.8
Feb15° / 13°517.710.64.8
Mar15° / 14°335.911.75.4
Apr17° / 15°153.312.96.5
May19° / 18°51.113.98.1
Jun23° / 22°20.514.49.3
Jul26° / 24°00.114.29.5
Aug27° / 25°30.613.49.1
Sep25° / 24°334.112.28.4
Oct23° / 21°586.911.17.7
Nov20° / 18°729.510.16.6
Dec17° / 15°719.79.65.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 72% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 10% of May, with mostly cloudy or overcast conditions the remaining 18%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18020
28119
38119
48119
58218
68218
78218
88218
98218
108119
118119
128119
138020
148020
158020
168020
178020
188020
198119
208218
218218
228218
238317
248317
258416
268416
278515
288515
298614
308614
318614

Chance of precipitation in May

Any precipitation

Mellieħa gets around 5 mm of rain over 1.1 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 4% and peaks near 8% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
18
28
37
47
56
66
75
85
94
104
114
124
133
143
153
163
173
183
193
203
213
223
233
243
253
263
273
283
293
303
313

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid band about 43% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12067130
21966150
31766170
41665190
51563220
61561240
71459270
81358290
91355320
101353340
111252360
121249390
131147411
141045431
15944452
16942472
17840493
18738514
19736525
20634546
21632557
22530578
235295610
244275811
254255912
263245914
273225916
282206018
292195920
302175922
312155825

Wind in May

Winds average 20 km/h in May.

Across May, daily wind ranges from about 18 km/h on the calmest days to 22 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
122breezy
221breezy
321breezy
421breezy
521breezy
621breezy
721breezy
821breezy
921breezy
1021breezy
1121breezy
1221breezy
1321breezy
1421breezy
1520breezy
1620breezy
1720breezy
1820breezy
1920breezy
2020light breeze
2120light breeze
2220light breeze
2319light breeze
2419light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 24 min at the start of May to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over May. Sunrise moves from 5:16 AM to 4:53 AM, and sunset from 6:43 PM to 7:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:166:43
213.55:156:44
313.55:146:45
413.55:136:46
513.65:126:46
613.65:116:47
713.65:106:48
813.75:096:49
913.75:086:50
1013.75:076:51
1113.85:066:52
1213.85:056:52
1313.85:046:53
1413.85:046:54
1513.95:036:55
1613.95:026:56
1713.95:016:57
1814.05:006:57
1914.05:006:58
2014.04:596:59
2114.04:587:00
2214.04:587:01
2314.14:577:01
2414.14:567:02
2514.14:567:03
2614.14:557:04
2714.24:557:04
2814.24:547:05
2914.24:547:06
3014.24:537:06
3114.24:537:07

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.09 kWh/m².

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 — May's 7.09 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.8Intense
46.9Intense
56.9Intense
66.9Intense
76.9Intense
87.0Intense
97.0Intense
107.0Intense
117.0Intense
127.0Intense
137.0Intense
147.0Intense
157.0Intense
167.1Intense
177.1Intense
187.1Intense
197.1Intense
207.1Intense
217.2Intense
227.2Intense
237.2Intense
247.2Intense
257.2Intense
267.2Intense
277.3Intense
287.3Intense
297.3Intense
307.3Intense
317.3Intense
Planning a trip in May

Hazard calendar for Mellieħa

In seasonPeak

In May, Mellieħa sits inside its dust season. The full year is below, with each hazard's peak months called out.

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

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

Is May a good time to visit Mellieħa?

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

8.1
Sightseeing
5th-best month of the year
3.8
Beach & pool
6th-best month of the year

May is one of the better times to visit Mellieħa for general sightseeing.

What to pack for Mellieħa in May

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

In May, Mellieħa sees daytime highs around 19°C and nights near 18°C. Pack sun protection. Worth having: a windbreaker.

sun protectiona windbreaker

Sea temperature near Mellieħa in May

The nearest coast averages about 19°C in May — 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.

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 Mellieħa in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mellieħa 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 Mellieħa in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Mellieħa 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 Mellieħa?

Mellieħa sits at 36.0°N, 14.4°E, 0 m above sea level, in Malta. The nearest listed city is San Pawl il-Baħar, 5.0 km away.

San Pawl il-BaħarMostaMdinaRabatBirkirkaraSt. Julian'sQormiSliema

Topography around Mellieħa

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

Within 3 km, the terrain around Mellieħa has only modest variations in elevation — a maximum elevation change of 152 m around an average of 41 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 Mellieħa is covered by grassland (44%) and water (28%) within 3 km, water (71%) within 16 km, and water (96%) within 80 km.

3 km
152 m
16 km
253 m
80 km
249 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: San Pawl il-Baħar 5.0 km · Mosta 8.0 km · Mdina 9.0 km · Rabat 9.0 km · Birkirkara 11 km · St. Julian's 12 km · Qormi 13 km · Sliema 13 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 Mellieħa (35.9566°, 14.3626°, 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).