Your July weather guide
HotWeather in Mellieha in July
July is a good time to visit Mellieha if you want warm sea swimming and reliably dry weather, but less suitable if you prefer cool evenings. Daytime highs average 27°C, nights stay around 23°C and the sea reaches about 25°C. For a UK traveller, that means summer clothing can do most of the work. The main catch is the combination of humidity and long sunny days, which makes shade and a relaxed pace useful.
Long-term climate averages for Mellieħa, not a forecast · 1991-2020
Mellieha, month by month
Your snapshot
At a glance
The useful details for Mellieħa.
- Average daytime high
- 26.8°C
- 9 in 10 days stay below 29°C
- Average night-time low
- 22.6°C
- coldest 10% of nights: 21°C or lower
- Compared with London
- +5.0°C
- London averages 21.8°C in July
- Sea temperature
- 25.2°C
- year to year: 24°C to 26°C
- Sunshine per day (est.)
- 13.7h
- 96% of 14.2 h of daylight
- Rainy days (1 mm+)
- 0
- 0 mm over the month
- Humidity
- 76%
- Days over 25°C
- 89%
- 4% over 30°C
- Record high 1991-2020
- 34.0°C
- 2017-07-24
- Record low 1991-2020
- 17.0°C
- 1991-07-03
- Flight from London
- ≈ 3 h 18 min
- 2048 km, short-haul (estimate for a direct flight)
Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.
How July compares
July is the 2nd warmest month of the year in Mellieha. Within Malta it is 4th of 4 (Malta in July). Against London's average high of 21.8°C in July, Mellieha is 5.0°C warmer by day and 9.1°C warmer at night.
Daytime and night-time in July
The typical July day in Mellieha peaks at 26.8°C, but that is an average: the warmest 10% of days reach 28.9°C or more. About 89% of days top 25°C and 1 in 23 pass 30°C. Nights average 22.6°C; one night in ten drops to 20.6°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest July day here reached 34.0°C (2017-07-24) and the coldest night 17.0°C (1991-07-03).
Rain in July
Dry (3 rainy days or fewer): about 0 days with 1 mm or more, 0 mm in total. Year to year it varies a lot - the wettest July was 1992 with 3 mm, the driest 1991 with 0 mm. Humidity averages 76%.
Sea temperature in July
The sea averages 25.2°C - warm enough to swim (22°c+). Depending on the year it ranges from 24.3°C to 26.3°C. For the warmest sea here, come in August (26.6°C).
Sunshine and daylight
Around 13.7 hours of sunshine a day (estimated from cloud cover), 14.2 hours of daylight: the sun rises about 05:58 and sets about 20:20 local time in mid-July. Average cloud cover is 4%.
Is July a good time to visit Mellieha?
Yes - it is one of the better months: hot days, little rain and long sunny days. The best months for Mellieha on our scoring are July, June, August; months averaging 25°C or more: Jul, Aug, Sep.
Warm days, with little cooling after dark
Mellieha in July suits travellers who enjoy consistent warmth rather than those hoping for fresh walking weather. Days reach 25°C around 89% of the time, so plan outdoor activity with heat in mind rather than waiting for a cooler day. Highs of 30°C are uncommon, but humidity averages 76%, which can make the warmth feel less comfortable, particularly when you are active. Put more demanding outings towards the morning and leave room for shade at midday. Evenings remain warm enough for light clothing, and accommodation with cooling is a sensible priority if you struggle to sleep in warm conditions.
Good swimming weather, with long sunny afternoons
The sea is a strong reason to choose July: at an average of 25.2°C, it is warm enough for swimming without the bracing feel of cooler months. Sunshine averages about 13.7 hours a day, giving you plenty of scope to swim earlier or later rather than spend the middle of the day exposed to the sun. Pack swimwear, breathable clothes, a hat and sun protection; rainwear is unlikely to earn much space in your bag. This weather works well for a holiday centred on swimming and taking things slowly, but offers little relief if you find prolonged sunshine tiring.
A little perspective
Mellieha through the year
July is highlighted. See how it compares with the rest of the year.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| January | 14.2°C | 11.6°C | 16.1°C | 5.2 | 56 | 9 | 0% |
| February | 14.0°C | 11.1°C | 15.2°C | 6.1 | 52 | 8 | 0% |
| March | 15.1°C | 12.1°C | 15.2°C | 7.2 | 32 | 6 | 0% |
| April | 17.0°C | 13.7°C | 16.1°C | 8.3 | 16 | 4 | 0% |
| May | 20.1°C | 16.5°C | 18.5°C | 9.9 | 6 | 2 | 1% |
| Junebest | 24.0°C | 19.9°C | 22.2°C | 12.2 | 3 | 1 | 31% |
| JulySelectedbest | 26.8°C | 22.6°C | 25.2°C | 13.7 | 0 | 0 | 89% |
| Augustbest | 27.8°C | 23.7°C | 26.6°C | 12.4 | 3 | 1 | 99% |
| September | 25.6°C | 22.3°C | 25.7°C | 8.9 | 32 | 4 | 66% |
| October | 22.8°C | 19.7°C | 23.8°C | 6.5 | 52 | 7 | 10% |
| November | 19.2°C | 16.4°C | 21.1°C | 5.3 | 69 | 9 | 0% |
| December | 15.9°C | 13.3°C | 18.1°C | 4.9 | 73 | 10 | 0% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
Keep exploring
Similar in July
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Mellieha in July FAQs
Plain answers, grounded in the averages.
Is Mellieha hot in July?
Mellieha is hot in July: the average daytime high is 26.8°C and nights average 22.6°C. About 89% of July days reach 25°C or more.
Can you swim in the sea in Mellieha in July?
The sea around Mellieha averages 25.2°C in July, which is warm enough for most people to swim comfortably. Between 1991 and 2020 it ranged from 24°C to 26°C depending on the year.
How much does it rain in Mellieha in July?
Mellieha sees about 0 rainy days (1 mm or more) and 0 mm of rain in a typical July. The wettest July between 1991 and 2020 was 1992 (3 mm) and the driest was 1991 (0 mm).
How sunny is Mellieha in July?
Mellieha gets around 13.7 hours of sunshine a day in July out of 14.2 hours of daylight (estimated from average cloud cover).
How does Mellieha compare with the UK in July?
Mellieha is on average 5.0°C warmer than London by day in July (26.8°C against 21.8°C).
What is the hottest July on record in Mellieha?
Between 1991 and 2020 the hottest July day in Mellieha reached 34.0°C on 2017-07-24, and the coldest night dropped to 17.0°C on 1991-07-03.
How much warmer is Mellieha than London in July?
Mellieha's average daytime high is 5°C warmer than London's in July: 26.8°C compared with 21.8°C. That makes it a warmer choice, while the warm nights mean you should not expect much of an evening cool-down.
Is rain likely to disrupt a July holiday?
Rain is unlikely to shape your plans, with about 0 rainy days in a typical July. It makes sense to prepare mainly for sunshine and heat, although that dry average is not a guarantee for every stay.
Is July a good month for sea swimming?
Yes. The sea averages 25.2°C, with a year-to-year range of 24°C to 26°C, so July suits travellers who prefer warmer water. Earlier or later swims also let you make use of the long daylight without lingering in midday sunshine.
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Mellieħa. Sea temperature from the nearest 5 km sea cell, 2.3 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C