If you’re planning a summer trip to Liverpool, it’s smart to know what kind of weather you’ll run into. Average summer temperatures in Liverpool stay mild, with daytime highs around 18–20°C (65–68°F), making it comfortable for walking the city or exploring the waterfront. You won’t deal with extreme heat, but the skies can change on a dime.
You’ll get a mix of cloudy stretches, light rain, and some brighter moments. Rain falls pretty evenly through the season, so tossing a light jacket or umbrella in your bag makes sense.
Humidity and coastal breezes shape how warm or cool it feels as you wander around. Sometimes the breeze cools you down just when the sun peeks out.
Daylight sticks around well into the evening, so you get long hours to enjoy outdoor spaces, festivals, and those classic seaside views. The Irish Sea nearby doesn’t just affect the air temperature, it also gives the coast its own atmosphere, adding to Liverpool’s distinct summer vibe.
Typical Summer Temperatures in Liverpool
Liverpool’s summers feel mild compared to a lot of European cities. Daytime temperatures stay comfortable, nights are cool, and you won’t really see much extreme heat.
You’ll notice steady patterns with only small changes from June through August.
Average Highs and Lows
During summer, Liverpool’s daytime highs usually land between 65°F (18°C) and 68°F (20°C). Nights cool off, dropping to lows of 50°F (10°C) to 54°F (12°C).
These temperatures keep things pleasant for walking, sightseeing, or grabbing dinner outside. No need to worry about stifling heat.
You almost never see highs above 77°F (25°C) or lows below 44°F (7°C). So, pack a light jacket for evenings, especially if you’ll be near the water.
Unlike southern Europe, Liverpool’s lower humidity means the air feels comfortable, even on warmer days.
Conditions stay steady, so you don’t have to brace for sudden heatwaves. Just expect moderate warmth by day and cool, refreshing nights.
Monthly Temperature Variations
June kicks off with highs around 64°F (18°C) and lows near 50°F (10°C). The long days give you extra daylight to explore.
By July, things peak with average highs of 67–68°F (19–20°C) and lows about 56°F (13°C). August holds onto similar highs but starts a slow cooling trend.
By late August, nights dip back to 52°F (11°C), hinting at autumn’s approach. Even with these changes, the month-to-month variation is pretty small compared to many places.
For quick reference:
| Month | Avg High | Avg Low |
|---|---|---|
| June | 64°F / 18°C | 50°F / 10°C |
| July | 67–68°F / 19–20°C | 56°F / 13°C |
| August | 66–67°F / 19°C | 52°F / 11°C |
You can plan your clothing and activities without stressing about wild swings in temperature.
Record Summer Temperatures
Liverpool doesn’t really see extreme summer heat. The hottest days might hit the upper 70s°F (mid-20s°C), with only rare spikes above that.
The Irish Sea helps regulate things, keeping records lower than you might expect for a city this far south.
On the hottest day of the year, late July usually brings highs around 68°F (20°C) and lows near 56°F (13°C). Temperatures above 80°F (27°C) are rare and don’t last long.
Cold extremes in summer barely happen. Nighttime lows almost never drop below 44°F (7°C), even in early June. So, you can count on mild, predictable conditions all season.
Rainfall and Precipitation Patterns
Liverpool’s summer brings moderate rainfall, spread fairly evenly across the months. Expect regular showers, but they’re usually light or moderate, not heavy downpours.
Average Summer Rainfall
During summer, Liverpool gets about 60–80 mm of rainfall per month. That’s pretty standard for its maritime climate—no long dry spells, but not constant rain either.
Rainfall totals bounce around a bit from year to year, but summer stays steadier than wetter months like December. Heavy seasonal flooding isn’t much of a worry, though you’ll still want to plan for wet weather.
Compared to other UK cities, Liverpool’s summer rainfall is moderate. London often sees less, while places like Manchester and Wales get more.
Frequency of Rainy Days
Liverpool averages 10 to 13 rainy days per summer month. If there’s more than 0.2 mm of rain, it counts as a “rainy day,” so this includes everything from light sprinkles to heavier showers.
The city’s spot on the coast means you get frequent but short-lived showers. Rain might show up on plenty of days, but it rarely sticks around all day.
You’ll often get cloudy skies on these rainy days. Sunshine hours aren’t as generous as in southern England, but the clouds do break up after showers.
Wettest and Driest Summer Months
August usually sees the most rainfall, averaging close to 80 mm. Humid air masses sometimes bring heavier showers and even a thunderstorm or two.
June is often the driest summer month, with totals closer to 60 mm. Rain in June tends to be lighter and less frequent, which makes it a good month for outdoor plans.
July lands somewhere in between, with steady rainfall but not much in the way of extremes. If you’re picking a time to visit, June and July offer mild temperatures and manageable rain. August just needs a bit more rain prep.
Humidity and Dew Point in Summer
Liverpool’s summer weather feels mild, but the steady humidity and moderate dew points give the air a damp touch. These factors shape how warm days actually feel and affect your comfort outdoors.
Typical Humidity Levels
In summer, Liverpool’s relative humidity usually hangs between 76% and 82%. May is the least humid, while July and August stick close to the yearly average of about 82%.
So, even when it’s only 18–20°C (64–68°F), the air’s moisture can make it feel heavier than you’d expect.
Humidity here rarely drops to “dry.” Instead, it stays “humid,” especially in the mornings and evenings. The city’s marine west coast climate and proximity to the Irish Sea keep it that way.
Dew Point Trends
Dew points in Liverpool’s summer usually run from 12°C to 15°C (54–59°F). That means the air feels moist but not tropical.
When dew points hit 15°C, you may notice a sticky feeling, especially if you’re walking or biking around. Cooler days with dew points closer to 12°C feel fresher and more comfortable.
Dew points stay pretty steady from June through August. Liverpool almost never gets dew points above 17°C, so the air doesn’t feel oppressive. This balance makes summer weather here easier to tolerate than in many inland cities.
Comfort Levels for Visitors
If you’re visiting, expect moderate humidity and mid-range dew points. The air can feel damp but not overwhelming.
You might get warm faster when walking uphill or spending time in crowds, even if the temperature seems mild. Packing light, breathable clothes helps a lot, and quick-dry fabrics are handy since humid air slows sweat evaporation.
If you’re sensitive to humidity, try outdoor activities earlier in the day when dew points are slightly lower. Evenings, especially near the water, can feel more humid, so an extra layer might come in handy if you’re out late.
Sunshine and Daylight Hours
Liverpool’s summer weather brings moderate sunshine and long daylight hours. Cloud cover often dims the brightness, though.
You’ll get steady daylight in June and July, but clear skies can be hit or miss. The city feels less sunny than southern Europe, but that’s just how it is up north.
Average Daily Sunshine
During summer, Liverpool averages about 5 to 7 hours of sunshine per day. May and June are usually the brightest, with May peaking at around 7.0 hours daily.
July and August are close, with about 5 to 6 hours on average. Compared to southern Europe, that’s not much, but it’s normal for northern England.
Even when the sun’s out, you’ll notice it often trades places with passing clouds.
A quick comparison:
- Liverpool (summer daily average): 5–7 hours
- Athens, Greece: 10–12 hours
- Reykjavík, Iceland: 4–6 hours
So, Liverpool’s sunshine is steady but not intense. That’s actually nice for outdoor activities—no need to hide from scorching heat.
Longest and Shortest Days
Day length changes quickly in Liverpool because it’s so far north. In late June, right around the summer solstice, you can get over 17 hours of daylight.
The sun rises before 5 a.m. and sets close to 10 p.m. By late August, daylight drops to about 14 hours, and by September it falls even more.
During midsummer, twilight lingers, giving evenings a softer, stretched-out light. In winter, you get less than 8 hours of daylight in December. Summer really opens up your options for outdoor plans.
Cloud Cover Patterns
Cloud cover is a big part of Liverpool’s summer. Skies are overcast or mostly cloudy about half the time.
July is usually the sunniest summer month, but even then, clouds often break up the sunshine.
You’ll see partly cloudy skies more often than long runs of clear blue. Sunshine comes in intervals, not all-day stretches.
Travelers get a mix of conditions. You might start with a bright morning and end with a cloudy afternoon, or the other way around. Light layers help since clouds can make it feel cooler than the numbers say.
Wind and Atmospheric Conditions
Liverpool’s summer brings steady breezes, moderate wind speeds, and fairly stable air pressure. These factors shape how comfortable the weather feels, especially along the coast and in town.
Prevailing Wind Directions
In summer, winds in Liverpool mostly come from the west and southwest. The Irish Sea influences this, moderating temperatures and keeping the air moving.
When winds blow in from the west, they bring mild, moist air. This can cause light showers, but summer rain is less frequent than in autumn or winter.
Sometimes winds shift to the north or east, though it’s less common. Northerly winds feel cooler and fresher, while easterly winds are drier and can clear out the clouds for a bit.
This airflow explains why Liverpool summers rarely feel hot or stagnant. You’ll get a mix of mild warmth, cloud breaks, and comfortable breezes.
Average Wind Speeds
Wind speeds in Liverpool during summer usually run between 10 to 15 km/h (6 to 9 mph). You’ll notice them, but they’re not disruptive.
Stronger gusts sometimes show up near the coast, especially if the weather gets unsettled. Compared to winter, summer winds are less intense and don’t show up as often.
This makes it easier to enjoy outdoor events, strolls by the water, or even a ferry ride across the Mersey.
For sailing or wind sports, summer gives you steady but not wild winds. You can count on consistent breezes without worrying about sudden storms.
The city’s layout cuts wind speeds a bit in the center, but open areas near the docks and beaches stay breezier.
Air Pressure and Weather Stability
In summer, air pressure in Liverpool stays more stable than during colder months. Average sea-level pressure usually sits between 1012 and 1018 hPa, which keeps conditions fairly settled.
High pressure brings clearer skies and lighter winds. These stretches can last several days, giving you dry, pleasant weather for exploring.
When low pressure moves through, you’ll get more clouds and maybe a shower or two. But these systems aren’t as strong as those in autumn or winter, so unsettled spells don’t last long.
This moderate pressure keeps Liverpool’s summer weather steady, so you won’t have to deal with many extremes in temperature or wind.
Sea Temperature and Coastal Influence
Liverpool sits right on the Irish Sea, and that really shapes both the water temperature and the local climate. The sea stays pretty cool most of the year, but honestly, it keeps summers mild and winters not nearly as harsh as you might expect inland.
Average Sea Temperatures
The water around Liverpool never really gets warm, even in the height of summer. Average sea temperatures go from about 6°C (43°F) in March up to maybe 16°C (61°F) in August.
You’ll probably notice the sea barely creeps above the mid-teens in Celsius. So yeah, it feels brisk, even when the sun’s out in July. Late spring and early summer bring a slow warming, and July and August are about as mild as it gets for swimming.
Here’s a simple look at the seasonal range:
| Month | Avg. Sea Temp °C | Avg. Sea Temp °F |
|---|---|---|
| March | ~6°C | ~43°F |
| June | ~13°C | ~55°F |
| August | ~16°C | ~61°F |
You can see that even when the air feels comfortable, the sea lags behind and stays much cooler.
Impact of the Irish Sea on Weather
The Irish Sea really shapes Liverpool’s climate. Because the city hugs the coast, it mostly dodges the wild temperature swings you’ll find inland.
In summer, the sea keeps daytime highs in check, so you’re usually looking at 19–22°C (66–72°F) instead of anything scorching. At night, the water gives back some stored warmth, which stops temperatures from dropping too sharply.
Winters feel a bit easier here. While inland towns freeze more often, Liverpool usually stays a few degrees warmer, thanks to the sea’s influence. Rain falls pretty evenly throughout the year, and all that nearby water brings plenty of cloud cover.
Living by the coast means you get a steadier, more predictable climate. Honestly, it’s nice not having too many surprises.
Best Months for Swimming
You can swim in Liverpool’s waters, but honestly, you should expect it to feel pretty cool. Most people say August is your best bet, since the average temperature climbs to around 16°C (61°F).
Even then, the water feels chilly, especially if you’ve ever dipped your toes in the sea further south in Europe.
Some folks try their luck in July or early September too, though the water drops a bit cooler. Wetsuits pop up everywhere—people wear them for comfort and, let’s face it, a bit of extra safety.
If you really want the nicest experience, late summer is the way to go. Catching a swim on a sunny day with calm seas just makes everything feel easier.
Local beaches like Crosby and Formby get pretty popular around this time.