Rainfall
In Adjara the coast receives the most rain, about 2,500 millimetres a year in Batumi. The alpine zone gets around 1,500 millimetres.
- Batumi
- about 2,500 mm a year
- Source
- Climate Change Strategy of Ajara, 2013
Batumi climate. Heavy rain, humid air and how owners deal with both.
In short
Batumi receives about 2,500 millimetres of rain a year, spread over 150 to 170 rainy days. Relative humidity in Adjara usually sits between 70 and 90%. Autumn is the wettest season and spring the driest. For owners that means airing, dehumidifying and having an empty flat looked after in winter.
The climate figuresA flat that stays locked for months over winter needs someone to air it and check on it.
What owners doClimate figures
What the measurements show.
The figures come from Adjara's 2013 climate change strategy, based on long-term measurements. For official measurements today, the body to ask is the National Environmental Agency.
Rainy days
On the coast it rains on 150 to 170 days a year. That is close to every other day.
- Coast
- 150 to 170 rainy days
- Source
- Climate Change Strategy of Ajara, 2013
Humidity
Relative humidity is high throughout Adjara, usually between 70 and 90%. Humid air and mild temperatures mean walls and fabrics dry slowly.
- Relative humidity
- 70 to 90%
- Source
- Climate Change Strategy of Ajara, 2013
Seasons
In the 1961 to 1990 reference period, autumn was the wettest season on the coast and spring the driest. With a long-term annual mean of 14.5 °C, Batumi is the warmest place in Adjara.
- Wettest season
- autumn
- Annual mean
- 14.5 °C
Checking monthly figures
Official weather and climate data in Georgia come from the National Environmental Agency, which is where to ask for monthly figures for Batumi. Internationally comparable climate normals for 1991 to 2020 are collected by the World Meteorological Organization. Figures on travel sites often give no measurement period.
- Official
- National Environmental Agency (meteo.gov.ge)
- International
- WMO climate normals 1991 to 2020
For owners
What the climate means for your flat.
In Batumi, damp is not a defect of the building but part of daily life. Plan for it and you avoid much of the damage.
Airing and dehumidifying
Open the windows wide for a few minutes when it is dry outside, and keep them shut in the rain. Many owners use the dry mode on the air conditioning or a dehumidifier, plus an extractor fan in the bathroom.
The empty flat in winter
A locked flat does not air itself. Arrange for someone to air it regularly, check windows and walls, and empty or check a dehumidifier fitted with a drain hose. Leave wardrobe doors slightly open.
Sea-facing facades
Wind drives rain against the seaward side and carries salt with it. At handover, check window seals, the joints around the balcony and the balcony drain. Metal in railings and frames should be suitable for coastal air.
Fitting out with damp in mind
When finishing a white-frame flat, choose damp-resistant materials in the bathroom, plan ventilation outlets and leave space for a dehumidifier with a drain. Wooden floors and wallpaper need more care in a flat that is rarely used.
Laundry and fabrics
Washing dries slowly in humid air. A tumble dryer or a sheltered spot on the balcony helps. In a holiday flat, bedding and cushions are best stored in closed boxes.
Life out of season
The city runs on the beach season. More than five times as many passengers arrived at the airport in August 2025 as in February. In winter many holiday flats stand empty, beach bars close and the city is quiet. If you plan to live there all year, spend a winter there first.
Projects in Batumi
Published new-build projects.
Each project page shows the finishing level, windows, position relative to the sea and running costs. Check there, too, how the flat faces the sea and the prevailing weather.
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Discover more locations and projects in search.
Go to project search
Frequently asked questions
Questions about Batumi's climate.
Rain, winter, humidity and the best time to visit.
How much rain does Batumi get per year?
About 2,500 millimetres, spread over 150 to 170 rainy days. That is the figure in Adjara's climate change strategy, based on long-term measurements. Autumn is the wettest season.
What is Batumi like in winter?
Mild and often wet. With a long-term annual mean of 14.5 °C, Batumi is the warmest place in Adjara. In winter the city is quiet, many holiday flats stand empty and beach bars are closed.
How do I prevent mould in a flat in Batumi?
Air the flat when it is dry outside and dehumidify, with the air conditioning or a dehumidifier. If the flat stands empty, someone should air and check it regularly. At handover, check the windows and the balcony joints.
When is the best time to visit Batumi?
For a beach holiday, the summer, which is also the main season. If you are buying, visit in autumn or winter as well. You will then see how the building and the district cope with rain and with life out of season.
Do I need a manager for my flat in winter?
It is not compulsory. But an empty flat in a humid climate should be aired and checked regularly. A rental manager, the building management for a fee or someone you trust can do it.
Last reviewed on 3 November 2026. Sources: Climate Change Strategy of Ajara (UNDP Georgia for the Autonomous Republic of Adjara, published 27 December 2013, undp.org): rainfall, rainy days, humidity, annual mean, 1961 to 1990 reference period, National Environmental Agency of Georgia (meteo.gov.ge): the body responsible for measurements, World Meteorological Organization: climate normals 1991 to 2020 (distributed by NOAA NCEI), TAV Airports: monthly arrivals at Batumi airport, 2025. This guide is not legal or tax advice.
Read next
More on Batumi.
Buying in Batumi, the figures on the season and tourism, and who looks after your flat when you are away.
Plan for the climate, then choose a flat.
Position relative to the sea, windows and finishing level all affect how much care a flat in Batumi needs.