Summer in Tbilisi, Georgia brings warm days, clear skies, and a steady rhythm of sunshine that really sets the mood for the season. You’ll see average high temperatures in July and August hitting the mid to upper 80s °F (around 30°C), while nights drop into the mid to upper 60s °F (about 18–20°C).
This mix of daytime heat and cooler nights keeps the city’s summer climate lively and surprisingly comfortable for exploring.
What stands out about Tbilisi’s summer is the combo of long daylight hours and mostly dry weather. Clouds barely show up, especially in July and August, so blue skies are the norm.
Rain does happen, but not as much as in spring, and showers usually don’t stick around for long.
These patterns make the season feel open and inviting. It’s great for wandering the city, hanging out at outdoor cafes, or heading into the hills for a day trip.
With steady warmth, bright skies, and lots of daylight, summer in Tbilisi gives you a fantastic backdrop to experience both the city and the scenery nearby.
Typical Summer Temperatures in Tbilisi
Tbilisi’s summer brings warm to hot days, with steady heat and cooler, more comfortable nights. Highs usually stay in the upper 20s to low 30s °C, and July and August really bring the heat.
Nights stay mild, making evenings perfect for getting outside.
Average Highs and Lows
During summer, average daytime highs land between 26°C and 30°C (78°F–86°F). July and August push toward the upper end, and heatwaves sometimes send temps close to 40°C (104°F).
Nighttime is much more forgiving. Average lows go from 15°C in June up to about 19°C in August.
These cooler nights take the edge off the daytime heat, which makes Tbilisi feel a bit nicer than places with sticky humidity.
This day-night contrast matters for travelers. You’ll want light clothes for the day, but a thin jacket or sweater might come in handy at night, especially in June.
Monthly Temperature Trends
The summer season in Tbilisi gets rolling with June averaging highs of about 26.5°C and lows near 15.6°C. July heats up, with highs around 29°C and lows near 18.7°C.
August keeps things warm, averaging 28.8°C in the day and 19.1°C at night.
| Month | Avg High (°C) | Avg Low (°C) |
|---|---|---|
| June | 26.5 | 15.6 |
| July | 28.9 | 18.7 |
| August | 28.8 | 19.1 |
You’ll see a steady climb from June into July, then things level off a bit in August. If you’re planning a trip, expect July and August to be the hottest and driest, while June is just a touch cooler.
Temperature Variability by Time of Day
Tbilisi heats up fast after sunrise, with the hottest stretch usually between 2 p.m. and 5 p.m. That’s when the sun and lack of clouds really crank things up.
As the sun drops, so do the temperatures—by 8–10°C compared to the afternoon. Late evenings and nights feel much more pleasant for walking, dining outside, or just exploring.
Mornings are the sweet spot for getting out and about. You’ll get cooler temps and gentler sunlight, which is honestly the best time if you want to dodge the midday heat.
This daily cycle doesn’t really change much between June and August, so you can count on it when planning your days.
Cloud Cover and Sky Conditions
In summer, Tbilisi’s sky shifts from more cloud cover in early June to mostly clear by late August. You’ll notice a steady uptick in sunny days, with the clearest skies showing up in the middle of summer.
Partly Cloudy and Clear Days
Partly cloudy and clear days really own the summer months. By late July and early August, skies are clear or mostly clear more than 85–90% of the time.
That makes outdoor plans easier, since rain and clouds rarely mess things up. The clearest day usually lands in early August, when the odds of clear skies hit their peak.
If you’re into sightseeing, photos, or outdoor dining, this is your window. Just remember the sunshine means UV is stronger, so don’t forget sun protection if you’re out at midday.
Cloudy Skies Frequency
Cloudy skies get less common as summer goes on. In early June, overcast or mostly cloudy weather happens about a third of the time.
By late August, that drops to roughly 10% or even less.
You’ll rarely deal with long stretches of gray skies. When clouds do pop up, they usually don’t stick around, and you won’t see thick layers very often.
Compared to spring, summer feels much more open and bright. If you’re planning events that need dry, sunny weather, summer’s definitely your friend in Tbilisi.
Seasonal Changes in Cloudiness
As summer moves from June to August, you’ll see a quick shift in sky conditions. June starts with a mix of partly cloudy and some lingering overcast days.
July brings a sharp drop in cloudy skies.
By mid-summer, Tbilisi gets its clearest skies of the whole year. August stands out, with some days giving you nearly nonstop sunshine.
This pattern makes late summer a favorite for travel, since you get long, sunny days and barely any cloud cover. The clear skies also show off the city’s landscape, from the surrounding hills to the old buildings downtown.
Rainfall and Precipitation Patterns
Tbilisi’s summer brings warm weather and moderate rain. Rain usually arrives in short, sometimes heavy bursts, and the amount shifts from month to month.
Knowing how much rain to expect, how often it falls, and how long it lasts helps you plan your outdoor time.
Rainfall Amounts by Month
Rain in Tbilisi during summer doesn’t show up evenly. May and June are the wettest months, with June often getting close to 100–110 mm of rain.
July and August dry out a bit, with 40–60 mm each month.
By September, rain picks up again, averaging 70–80 mm. So, you’ll see more unsettled weather in early and late summer, while mid-summer is drier.
| Month | Avg. Rainfall (mm) | Rainy Days (approx.) |
|---|---|---|
| May | 110 | 15 |
| June | 90–100 | 12–14 |
| July | 45–55 | 7–9 |
| August | 50–60 | 8–10 |
| September | 70–80 | 10–12 |
So, while rain is fairly common, it doesn’t really define the season.
Chance of Wet Days
You’ll notice a decent chance of rain on many summer days in Tbilisi, but it rarely rains all day. May and June bring about a 40–50% shot at a wet day, making them the months with the most showers.
In July and August, your odds drop to 25–30%, so you get more dry days for being outside. By September, rain chances climb again to about 35–40%.
Showers tend to be scattered, so one part of the city might see rain while another stays dry. This lets you keep outdoor plans flexible, especially if you avoid the afternoons when storms pop up more.
Duration and Intensity of Rain
Summer rain in Tbilisi comes in short, sometimes intense bursts, not long stretches. Afternoon thunderstorms show up a lot, especially in May, June, and September.
These storms can dump a lot of rain in less than an hour.
In July and August, showers are usually lighter and don’t last long, but a quick downpour can still happen. It almost never rains all day, so you’ll often get dry mornings and evenings even if storms roll through.
The city’s hilly terrain means rainfall can really vary by neighborhood. You might see heavy rain in one spot and just a drizzle a few streets away.
This local twist is a big part of Tbilisi’s summer weather.
Sunshine and Daylight Hours
Tbilisi’s summer brings long, bright days packed with sunshine. You get strong sunlight around midday, and extended daylight makes planning outdoor stuff a breeze.
Average Daily Sunshine
June, July, and August deliver the most sunshine all year in Tbilisi. July usually wins out, with about 8 hours and 45 minutes of direct sun per day.
June and August are close, with more than 8 hours daily.
That’s about 60% of daylight hours in midsummer spent in the sun. By comparison, winter only offers 3 to 4 hours of sunshine a day, so summer feels like a different world.
The sun can get pretty intense, especially midday. It’s smart to plan walks or sightseeing in the morning or late afternoon, when the light is softer and it’s not so hot.
Length of Daylight
Daylight in Tbilisi jumps up fast from spring into summer. Around late June, the longest days last over 15 hours.
In July, you still get nearly 14 hours and 50 minutes of daylight.
August days start to shrink, but you’ll still see about 13 hours and 50 minutes. Even early September gives you more than 12 hours of daylight, which is above the global average.
All this daylight means you can fit in sightseeing, meals, and events without feeling rushed. It’s honestly one reason summer draws so many visitors to Georgia.
Sunrise and Sunset Times
In summer, the sun rises early and sets late in Tbilisi. Around the solstice in late June, sunrise hits close to 5:30 AM, and sunset lands after 8:30 PM.
By July, sunrise comes a bit later, around 5:45 AM, with sunset near 8:20 PM. In August, days shorten, so sunrise is about 6:15 AM and sunset is around 7:45 PM.
These long evenings with natural light are perfect for outdoor dining or wandering the city’s old neighborhoods. The slow change in sunrise and sunset times helps you adjust your plans as summer moves along.
Humidity and Wind in Summer
Tbilisi’s summer weather mixes warm highs with moderate humidity and gentle breezes. These details really shape how comfortable things feel and can affect your outdoor plans.
Average Humidity Levels
Humidity in Tbilisi during summer stays lower than in other seasons, so the heat doesn’t feel as sticky. July usually brings the lowest relative humidity, about 61%, while June and August hover closer to 65–68%.
The air can still feel a bit heavy on the hottest days, especially in August when highs reach around 30°C (86°F). At these humidity levels, it might feel a little warmer than the thermometer says.
Evenings offer some relief, as humidity rises a bit when temperatures drop. Nights feel cooler, but not damp.
If you’re out walking or sitting outside, the air will feel more comfortable than it does at midday.
Wind Speeds and Patterns
In Tbilisi, summer winds usually stay light to moderate, with speeds around 7–12 km/h (4–7 mph). Breezes tend to drift in from the northwest or southeast, depending on what’s happening with the local pressure and how air moves through the valley.
These winds can take the edge off hot afternoons, especially when humidity climbs. They don’t really interrupt outdoor plans, but they do make things a bit more pleasant.
You’ll notice calm stretches too, particularly after sunset. The air feels warmer and a bit still, especially if you’re in the middle of the city.
If you hang out on higher ground or somewhere open, you might catch stronger breezes than you’d feel downtown.
Travel Tips for Visiting Tbilisi in Summer
Tbilisi in summer means long days, warm weather, and a packed schedule of cultural happenings. It’s smart to plan for the heat, pack light clothing, and mix up your time between indoor and outdoor spots that suit the season.
Best Months for Travel
Summer here runs from June through August. Highs start out in the upper 70s°F (25°C) in early June, then climb to the upper 80s°F (31°C) by late July. Rain gets less common as summer goes on, so July and August are usually drier and sunnier.
If you’re after cooler days and smaller crowds, early June feels like a sweet spot. July brings the most cultural events—think Tbilisi Jazz Festival—but you’ll also deal with higher temps and more visitors.
Late August stays warm, but things quiet down a little, and evenings cool off. It’s a nice window for walking tours or day trips outside the city.
Quick Guide:
- June: Warm, some rain, lighter crowds
- July: Hottest, busiest, major festivals
- August: Hot days, clearer skies, fewer tourists than July
Packing Recommendations
You’ll want lightweight, breathable clothes since daytime highs often push past 30°C (86°F). Cotton and linen work best. Toss in a wide-brimmed hat, sunglasses, and sunscreen—those long hours outside can sneak up on you.
Evenings, especially in June, might surprise you with a chill, so a light jacket or sweater comes in handy. Good walking shoes are a must, thanks to Tbilisi’s cobblestone streets and all those hills.
Don’t forget a refillable water bottle. Staying hydrated is key in this heat. If you’re heading for the mountains or lakes nearby, pack some layers, since it can get cool outside the city.
Checklist:
- Light shirts and shorts
- Sun protection (hat, sunscreen, sunglasses)
- Comfortable walking shoes
- Light jacket for evenings
- Refillable water bottle
Popular Summer Activities
Summer always feels like the perfect time to get outside and soak up Tbilisi’s open spaces. I love grabbing a seat at an open-air cafe, or heading up to Mtatsminda Park for those sweeping city views.
On especially hot days, I’ll cool off at Turtle Lake or Lisi Lake, both just a short ride away.
July brings a bunch of festivals and concerts, which draw in locals and visitors alike. If you’re into music or cultural events, you might want to plan your trip around those dates.
Summer evenings in Tbilisi have their own magic. I often find myself wandering along Rustaveli Avenue, or just exploring the glowing Narikala Fortress as the sun sets.
When the heat gets to be too much, I usually duck into a museum or treat myself to some time in Tbilisi’s historic sulfur baths.
If you’re up for a little adventure, day trips to the Kakheti wine region or the mountain areas north of the city offer fresh air and cooler weather.
Top Picks:
- Outdoor cafes and parks
- Turtle Lake or Lisi Lake
- Tbilisi Jazz Festival (July)
- Sulfur baths in Abanotubani
- Evening walks in the old town
- Wine tours in Kakheti