Stérna, Greece experiences average highs of 20°C (68°F) and lows of 10°C (50°F) throughout the year. The climate is relatively dry, with only 7 rainy days per month on average. Sunshine is abundant, averaging about 10 hours per day. Average highs have stayed broadly stable across the available records.
Stérna, Greece Weather & Climate 2026
Monthly climate averages for Stérna, Greece. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Feb–Oct 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.7/10
Best: May, June, July, August, September
UV Index
5
Low
Temperature 20°C / 10°C
Feels Like 18°C / 8°C
Rainy Days 7
Rainfall 48 mm
Sunshine 10 h
Humidity 67%
Wind Speed 17 km/h
Dew Point 9°C
Snow Days 2 days
Frost Days 7 days
Hottest Month
32°C
July
Avg Low 20°C
Rain 4 days
Coldest Month
0°C
January
Avg High 8°C
Rain 8 days
Driest Month
2 days
August
Avg High 32°C
Avg Low 20°C
Windiest Month
19 km/h
February (Gusts 37)
Worst Time to Visit
Consider avoiding January, February, December due to less favorable weather conditions.
Sun Position
Sunrise 05:53
Daylight 14.9h
Sunset 20:47
Live conditions —
Stérna on the map · live conditions
Stérna, Greece
- Continent
- Europe
- Country
- Greece
- City
- Stérna
- Population
- 815
- Coordinates
- 41.57°, 26.46°
Seasonal Breakdown
Spring
Mar–May
Avg High 19°C
Avg Low 8°C
Rain 9 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 31°C
Avg Low 19°C
Rain 4 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 21°C
Avg Low 11°C
Rain 6 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 10°C
Avg Low 2°C
Rain 8 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
High Low Shaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 8°C / 0°C . Feb: 11°C / 2°C . Mar: 14°C / 4°C . Apr: 19°C / 7°C . May: 23°C / 12°C . Jun: 29°C / 17°C . Jul: 32°C / 20°C . Aug: 32°C / 20°C . Sep: 28°C / 16°C . Oct: 21°C / 11°C . Nov: 15°C / 7°C . Dec: 10°C / 3°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 70 mm. Feb: 53 mm. Mar: 52 mm. Apr: 56 mm. May: 49 mm. Jun: 46 mm. Jul: 21 mm. Aug: 10 mm. Sep: 20 mm. Oct: 58 mm. Nov: 62 mm. Dec: 76 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 78%. Feb: 75%. Mar: 72%. Apr: 67%. May: 64%. Jun: 61%. Jul: 51%. Aug: 52%. Sep: 57%. Oct: 70%. Nov: 77%. Dec: 80%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 17 km/h . Feb: 19 km/h . Mar: 18 km/h . Apr: 16 km/h . May: 17 km/h . Jun: 16 km/h . Jul: 17 km/h . Aug: 19 km/h . Sep: 18 km/h . Oct: 15 km/h . Nov: 17 km/h . Dec: 17 km/h .
Sunshine
Sunshine
Sunshine: Jan: 6h. Feb: 7h. Mar: 9h. Apr: 11h. May: 12h. Jun: 13h. Jul: 13h. Aug: 13h. Sep: 11h. Oct: 8h. Nov: 6h. Dec: 6h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 6. May: UV 7. Jun: UV 7. Jul: UV 8. Aug: UV 7. Sep: UV 5. Oct: UV 4. Nov: UV 2. Dec: UV 2.
Monthly Daylight Hours
Daylight 12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow Days Snowfall
Snow Days: Jan: 4 days. Feb: 3 days. Mar: 1 days. Apr: 0 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 1 days. Dec: 2 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 35°C | Jul · 32°C |
| Coldest month | Feb 2025 · -1°C | Jan · 0°C |
| Wettest month | Oct 2025 · 123 mm | Dec · 76 mm |
| Windiest month | Aug 2025 · 20 km/h | Feb · 19 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Fair April
Good May best
Excellent June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Fair December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 8°C / 0°C | 5°C / -3°C | 8days (70 mm) Wet | 6.1h Fair | 78% Humid | 2.2 Moderate | Poor | View Details |
| February | 11°C / 2°C | 7°C / -2°C | 7days (53 mm) Good | 7.1h Good | 75% Muggy | 3 Moderate | Poor | View Details |
| March | 14°C / 4°C | 11°C / 1°C | 9days (52 mm) Wet | 8.6h Good | 72% Muggy | 4.4 Moderate | Fair | View Details |
| April | 19°C / 7°C | 17°C / 5°C | 8days (56 mm) Wet | 10.5h Excellent | 67% Muggy | 5.8 High | Good | View Details |
| May best | 23°C / 12°C | 23°C / 11°C | 9days (49 mm) Wet | 11.8h Excellent | 64% Muggy | 6.6 High | Excellent | View Details |
| June best | 29°C / 17°C | 30°C / 18°C | 7days (46 mm) Good | 13.2h Excellent | 61% Muggy | 7.4 Very High | Excellent | View Details |
| July best | 32°C / 20°C | 33°C / 20°C | 4days (21 mm) Good | 13.3h Excellent | 51% Moderate | 7.5 Very High | Excellent | View Details |
| August best | 32°C / 20°C | 32°C / 21°C | 2days (10 mm) Excellent | 12.5h Excellent | 52% Moderate | 6.8 High | Excellent | View Details |
| September best | 28°C / 16°C | 26°C / 16°C | 4days (20 mm) Good | 10.7h Excellent | 57% Moderate | 5.4 High | Excellent | View Details |
| October | 21°C / 11°C | 19°C / 9°C | 5days (58 mm) Good | 8.3h Good | 70% Muggy | 3.8 Moderate | Good | View Details |
| November | 15°C / 7°C | 13°C / 5°C | 8days (62 mm) Wet | 6.4h Fair | 77% Humid | 2.4 Moderate | Fair | View Details |
| December | 10°C / 3°C | 7°C / 0°C | 9days (76 mm) Wet | 5.7h Fair | 80% Humid | 1.9 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Stérna are May, June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Stérna, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Stérna is July, with average daytime highs of 32°C (90°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Stérna is January, with average overnight lows of 0°C (33°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Stérna is December, averaging 76mm of precipitation across 9 rainy days. An umbrella or waterproof jacket is essential.
Stérna receives approximately 114 sunshine hours per year. The sunniest month is July with around 13 hours. Based on climate data for Stérna.
The least favorable months to visit Stérna are January, February, December, primarily due to less favorable weather conditions. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Stérna is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Stérna is 67%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Stérna receives snow. Months with snowfall average 2 snow days and 5 cm (2 in) of accumulation, with about 7 frost days during winter.
Average wind speeds in Stérna are 17 km/h (11 mph). The windiest month is February with peak winds reaching 19 km/h (12 mph) (gusts up to 37 km/h / 23 mph).
Stérna averages 9 clear-sky days per month with overall cloud cover around 45%. The clearest skies occur in July.
The annual average dew point in Stérna is 9°C (48°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Stérna has a Hot-Summer Mediterranean climate, classified as Csa under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Stérna ranges from 8°C (46°F) to 18°C (64°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, July is a great time to visit Stérna. It earns a climate score of 8.7/10 with Excellent.
For July in Stérna, pack Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Sandals. With average highs of 32°C (90°F) and 4 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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