Summer in Valletta, Malta means long days full of sunshine, warm air, and calm seas. These elements shape the city’s daily rhythm in ways you’ll notice right away.
Expect average daytime highs in the upper 70s to mid-80s Fahrenheit (about 26–30°C). Nights usually stay mild and comfortable, so you don’t have to worry about chilly evenings.
This steady warmth, mixed with almost no rainfall, makes summer perfect for wandering historic streets, sitting at outdoor cafés, or exploring the coastline.
You’ll see clear skies most days, especially in July, which locals often call the sunniest time of year. The Mediterranean Sea warms up fast, hitting great swimming temperatures by August.
Gentle breezes off the water help take the edge off the heat. This combination creates a reliable pattern that makes planning outside activities a breeze.
If you understand Valletta’s summer climate, you’ll know when the air feels most humid, how long the sun stays up, and what to expect from the odd breeze or quick shower.
Overview of Valletta’s Summer Climate
In Valletta, Malta, you get long sunny days, warm temperatures, and almost no rain in summer.
The Mediterranean climate brings predictable patterns, so you can plan outdoor fun without much guesswork.
Mediterranean Climate Characteristics
Valletta falls into the hot-summer Mediterranean climate (Csa) zone. Summers here are hot and dry, while winters turn mild and wetter.
In summer, daytime highs usually sit between 28°C and 32°C (82°F to 89°F). Nights cool down to 20°C to 24°C (68°F to 75°F).
Humidity stays moderate, but the dry air makes it feel a bit less sticky than you might expect. Rain almost disappears, with less than 5 mm in June and July, sometimes not even that.
Sunshine dominates, giving you 10–12 hours of daylight most days. The UV index hits 9–10, so don’t forget the sunscreen if you’re out and about.
The sea helps too. Sea surface temperatures climb from 22°C (72°F) in June to 26°C (79°F) in August. That keeps coastal spots a little cooler, even on the hottest afternoons.
Seasonal Weather Patterns
The summer season in Valletta runs from June through August. June starts out warm and dry, with highs near 28°C (82°F) and barely any rain.
By July, the heat peaks, bringing average highs of 30°C (87°F) and almost no rainfall at all.
August stays hot, matching July’s heat, and sometimes feels a touch more humid. Nights don’t really cool off, rarely dipping below 21°C (70°F), so evenings are great for outdoor dinners or harbor walks.
Clouds barely show up, covering the sky about 10–15% of the time. Winds usually stay light to moderate, mostly coming from the northwest, which helps cool things off without bringing storms.
Average Summer Temperatures in Valletta
Summer in Valletta brings steady warmth and plenty of sun. Hot afternoons and mild evenings are the norm, and temperatures don’t swing much from month to month.
Daytime and Nighttime Temperature Ranges
During summer, daytime highs typically land between 78°F and 88°F (25°C to 31°C). The hottest stretch usually shows up in early August, when average highs get close to 88°F.
At night, it stays comfortable, rarely dropping below 65°F (18°C) in June and reaching about 74°F (23°C) in August. You can eat outdoors or stroll the waterfront without grabbing a jacket.
Valletta’s coastal spot helps keep things stable. The sea stops big temperature swings, so you don’t get wild differences between day and night. Usually, there’s just a 10°F (5°C to 6°C) difference.
Monthly Temperature Trends
In June, temperatures feel warm but not too hot, with highs around 78°F (25°C) and lows near 65°F (18°C).
By July, things heat up, with highs averaging 83°F (28°C) and lows about 70°F (21°C).
August usually brings the hottest weather. Highs average 85°F to 88°F (29°C to 31°C), and lows stay close to 73°F (23°C). Nights in August tend to feel more humid than in June.
Here’s a quick look:
| Month | Avg High | Avg Low |
|---|---|---|
| June | 78°F / 25°C | 65°F / 18°C |
| July | 83°F / 28°C | 70°F / 21°C |
| August | 85–88°F / 29–31°C | 73°F / 23°C |
As summer goes on, you’ll want to pack light clothes—especially for July and August.
Temperature Extremes and Records
Most summer days stay within a tight range, but sometimes the heat spikes. Daytime highs can briefly reach 94°F (34°C) during heatwaves.
Nights hardly ever dip below 61°F (16°C), even early in the season. Valletta’s maritime climate keeps things stable, so you avoid the wild temperature drops you might get inland.
Usually, the hottest day of the year comes in early August, with nights averaging 74°F (23°C) and afternoons hitting 88°F (31°C). Valletta’s summer really leans into steady warmth instead of extremes.
Sunshine and Daylight Hours
Valletta’s summer hands you long, bright days and lots of direct sunlight. You get some of the highest sunshine totals in Europe, so outdoor plans are easy.
Average Daily Sunshine
In Valletta, summer months bring loads of sunshine. July stands out with about 12.4 hours of sunshine per day, adding up to roughly 372 hours for the month.
June and August keep things nearly as sunny, with close to 11–12 hours daily.
This high level of sunshine means clear skies most days. Clouds rarely show up, and rain is almost nonexistent.
Valletta gets over 3,000 hours of sunshine per year, beating out many other Mediterranean cities. Summer is when you’ll see the most of it, so it’s a great time to be outside.
Duration of Daylight in Summer
Daylight stretches out in Valletta during summer. In June, the longest days hit about 14.5 hours of daylight, giving you plenty of time to explore.
By July, daylight stays long, only trimming back a little as summer moves on.
In August, you still get around 13.5 hours of daylight. That’s more than enough for sightseeing, swimming, or evening walks by the sea.
Long daylight and tons of sunshine mean you rarely feel rushed. You can do morning activities, rest in the afternoon, and still have daylight left for late outings.
Precipitation and Rainfall Patterns
Valletta’s summer is dry, with barely any rain. Most of the city’s annual precipitation falls in the cooler months.
You’ll notice long stretches of sunny days in summer. Rain, if it happens at all, is usually light and quick.
Rainfall Amounts and Frequency
Rainfall in Valletta isn’t spread evenly through the year. In June, July, and August, the city almost never records measurable rain.
July averages less than 1 mm of precipitation, and some years don’t see a single rainy day.
The wettest months show up in late autumn and winter. December usually brings the most, with 100–110 mm of rainfall over about 13 rainy days. November and January are also pretty wet, each with 80–90 mm.
Valletta gets about 430–600 mm of rain annually, depending on the source. That’s moderate compared to many European cities. Only about 90–100 days per year see measurable rain.
| Month | Avg Rainfall (mm) | Avg Rainy Days |
|---|---|---|
| July | ~0.5 mm | 0 days |
| October | 85–90 mm | 9–10 days |
| December | 100–112 mm | 13 days |
Seasonal Changes in Precipitation
You’ll spot a sharp seasonal shift in Valletta’s rainfall. Summer is almost entirely dry, making it great for outdoor plans.
Stable high-pressure systems keep things dry in the central Mediterranean during summer.
From October through January, the pattern flips. Low-pressure systems from the Atlantic and North Africa bring more showers and the occasional storm. These months bring most of the year’s rain.
Spring and early autumn act as transitional times. In April and May, you’ll get light rain now and then—more than in midsummer, but not much. By September, showers start to return, but they’re still light compared to winter.
So, if you’re after dry, sunny days, summer is your window. For wetter, cooler weather, late autumn and winter are your seasons.
Humidity, Wind, and Sea Breezes
Summer in Valletta feels warm and sometimes sticky, thanks to high humidity. Steady winds and coastal breezes help take the edge off, though.
The mix of moist air and Mediterranean winds really shapes how comfortable your days and nights feel.
Humidity Levels in Summer
Humidity rises in Valletta during peak summer, especially in July and August. The dew point often hits around 22°C (72°F), making the air feel heavy and a bit damp.
If you’re sensitive to humidity, afternoons might feel muggy unless you find shade or air conditioning.
Nights stay humid too, so you might want a fan or AC to sleep comfortably. High humidity, paired with temps above 30°C (86°F), can make it feel warmer than the thermometer says.
By early September, things start to dry out a bit, but it’s still more humid than in spring or fall. The sticky feeling is strongest away from the coast, where breezes don’t reach as much.
For comfort, try outdoor activities in the morning or late evening. Bring water and wear light, breathable clothes to handle the Mediterranean humidity.
Typical Wind Conditions
Winds in Valletta range from light summer breezes to stronger gusts, depending on the season. In summer, average winds sit between 10–20 km/h (6–12 mph), with August usually being the calmest.
These lighter winds make the air feel warmer and more humid.
The northwest “Mistral” winds sometimes sweep into Malta, bringing drier, cooler air that gives you a break from the humidity. On other days, sea breezes from the Mediterranean offer natural cooling, especially near the water.
February is actually the windiest month, but in summer, winds stay moderate and pretty predictable. Evenings tend to calm down, making outdoor dining and harbor walks pleasant.
If you’re into sailing or water sports, summer’s steady but gentle winds create good conditions. The balance between humidity and breezes really defines Valletta’s summer weather.
Cloud Cover and Sky Conditions
In Valletta, summer skies usually stay clear. You’ll notice far less cloud cover than other times of year. This really affects how warm it feels and how much sunlight you get during the day.
Clear and Cloudy Days
Valletta enjoys some of the clearest summer skies in the Mediterranean. From June to early September, you’ll see clear, mostly clear, or just partly cloudy skies almost every day. July stands out, with clear skies about 98% of the time.
Cloudy days? Pretty rare in summer. Only a handful of days bring anything more than light clouds. So, you can expect long stretches of uninterrupted sunshine, especially in July and August.
Here’s a quick look at how often you’ll get clear versus cloudy skies in summer:
| Month | Clearer Skies | Cloudier Skies |
|---|---|---|
| June | ~84% | ~16% |
| July | ~98% | ~2% |
| August | ~94% | ~6% |
Valletta really delivers if you’re chasing predictable sunny weather.
Impact of Cloud Cover on Weather
With skies so clear, the sun heats up the city quickly each day. There’s barely any shade from clouds, so daytime highs often hit the upper 80s °F (around 30°C). Nights don’t cool off much either, since all that heat from the day sticks around without clouds to trap it.
Rain barely happens in summer. July usually brings less than half a day of measurable rain, and you’ll see total rainfall for the month at about 0.1 inches (2–3 mm). Valletta’s summer is the driest stretch of the year.
Clear skies mean strong UV rays, too. You’ll get intense sunlight for most of the day, especially around noon when the sun is highest. Sun protection isn’t optional—clouds won’t help you out much during these months.
Travel Tips for Experiencing Valletta’s Summer Weather
High temperatures and endless sunshine set the pace for daily life in Valletta during summer. Staying comfortable really comes down to picking the right times for activities and dressing smart.
Best Times of Day for Outdoor Activities
Daytime highs often reach 30–33°C in July and August. That hot sun and almost no rain make midday a tough time for walking tours or outdoor adventures. Mornings and evenings? Way better for exploring.
Try sightseeing between 7:00–11:00 a.m. Streets are cooler, crowds are lighter, and museums and shops open early so you can duck inside before it gets too hot.
Late afternoons and evenings are perfect for waterfront strolls, outdoor dinners, or catching a festival. After sunset, temperatures drop into the low 20s°C, and the city feels a lot more inviting.
If you’re after a swim, hit the beaches or lidos in the morning. The sea is warm, but the sun isn’t brutal yet, so you’re less likely to burn.
What to Pack for a Summer Visit
Go for light, breathable clothes—cotton or linen usually feels best in the heat. You’ll want a wide-brimmed hat, UV sunglasses, and some reef-safe sunscreen, since that Mediterranean sun can be relentless.
Toss a reusable water bottle in your bag. Honestly, dehydration creeps up fast in this kind of weather. Luckily, you can fill up at public fountains or just ask at a café.
Valletta’s streets are hilly and made of stone, so comfortable walking shoes really do make a difference. Sandals work for evenings, but during the day, shoes with good grip are just smarter if you’re sightseeing.
A small day bag helps keep things organized. I always stash sunscreen, a light scarf for shade, and a portable fan if the heat gets to me. If you fly in through Malta International Airport, you’ll spot shops with most of this stuff before you even leave for the city.