Mégara in Summer
In summer (June, July and August), Mégara sees average daytime highs around 29°C and overnight lows near 22°C, with 13 mm of rain over about 3 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 25°C in early June to 29°C by late August. The sky is clear or mostly clear about 92% of the time across summer, and the air most often feels humid.
Summer is Mégara's best season of the year to visit on our travel score. For the whole year in context, see Mégara's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 22°C
- Rainfall
- 13 mm
- 3 wet days
- Avg wind
- 10 km/h
- Travel score
- 7.3
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Mégara in Summer
Over the season highs climb from about 25°C in early June to 29°C by late August.
A typical summer day in Mégara reaches about 29°C and drops to 22°C overnight. The warmest of the three months is July, the coolest June.
Mégara weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 11° / 7° | 55 | 8 | 0.5 | 9.7 | 3.0 |
| Feb | 12° / 7° | 48 | 7.4 | 0.6 | 10.5 | 3.4 |
| Mar | 14° / 9° | 53 | 6.9 | 0.2 | 11.7 | 4.7 |
| Apr | 18° / 12° | 26 | 4.7 | 0 | 13 | 6.7 |
| May | 23° / 16° | 19 | 4.1 | 0 | 14 | 8.2 |
| Jun | 28° / 20° | 7 | 1.6 | 0 | 14.6 | 8.1 |
| Jul | 30° / 23° | 3 | 0.7 | 0 | 14.4 | 6.9 |
| Aug | 30° / 23° | 3 | 0.8 | 0 | 13.5 | 7.0 |
| Sep | 26° / 20° | 16 | 2.4 | 0 | 12.3 | 8.4 |
| Oct | 22° / 16° | 32 | 4.5 | 0 | 11 | 7.8 |
| Nov | 17° / 12° | 50 | 6.7 | 0 | 9.9 | 5.8 |
| Dec | 13° / 9° | 61 | 8.5 | 0.4 | 9.4 | 3.6 |
Cloud cover in Summer
The sky is clear or mostly clear about 92% of the time across summer.
Chance of precipitation in Summer
Mégara gets around 13 mm of rain over 3 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 10 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 24 min in early June to 12 h 54 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 7.1 kWh/m².
Is summer a good time to visit Mégara?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is one of the better times to visit Mégara for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Mégara in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Mégara sees daytime highs around 29°C and nights near 22°C. Pack light clothes and sun protection.
Sea temperature near Mégara in Summer
The nearest coast averages about 25°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 14 km away) is warmest in August at about 26°C and coldest in February near 15°C.
It's comfortable for a long swim from May 27 to Nov 17 — about 5.8 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 15 | 15 | 15 | 16 | 19 | 22 | 25 | 26 | 25 | 23 | 20 | 17 |
| Comfort | Cool | Bracing | Bracing | Cool | Cool | Refreshing | Warm | Warm | Warm | Refreshing | Refreshing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 15 | Cool |
| Feb | 15 | Bracing |
| Mar | 15 | Bracing |
| Apr | 16 | Cool |
| May | 19 | Cool |
| Jun | 22 | Refreshing |
| Jul | 25 | Warm |
| Aug | 26 | Warm |
| Sep | 25 | Warm |
| Oct | 23 | Refreshing |
| Nov | 20 | Refreshing |
| Dec | 17 | Cool |
UV index in Mégara in Summer
Clear-sky midday UV across summer averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Mégara peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 7 | 7 | 9 | 9 | 9 | 7 | 5 | 3 | 2 |
| Level | Low | Moderate | Moderate | Very high | High | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | Very high |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 9 | Very high |
| Sep | 7 | High |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Mégara in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Mégara is worst in August — around 21 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 11 | 13 | 15 | 15 | 14 | 12 | 18 | 21 | 11 | 10 | 10 | 8 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Good | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 13 | Moderate |
| Mar | 15 | Moderate |
| Apr | 15 | Moderate |
| May | 14 | Moderate |
| Jun | 12 | Good |
| Jul | 18 | Moderate |
| Aug | 21 | Moderate |
| Sep | 11 | Good |
| Oct | 10 | Good |
| Nov | 10 | Good |
| Dec | 8 | Good |
Where is Mégara?
Mégara sits at 38.0°N, 23.3°E, 35 m above sea level, in Greece. The nearest listed city is Salamína, 14 km away.
Topography around Mégara
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mégara.
Within 3 km, the terrain around Mégara has only modest variations in elevation — a maximum elevation change of 187 m around an average of 40 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,122 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,102 m.
The land around Mégara is covered by grassland (42%) and artificial surfaces (21%) within 3 km, water (38%) and trees (25%) within 16 km, and water (41%) and trees (26%) within 80 km.
Greece travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 60% of US
- price level, 2025
- GDP per capita
- $26,948
- 2025
- Happiness
- 5.7 / 10
- World Happiness, 2025
- Safe drinking water
- 97%
- of population, 2024
- Homicide rate
- 0.8
- per 100k, 2023
- Road deaths
- 8.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- High
- EF EPI 592
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Mégara (37.9947°, 23.3432°, elevation 35 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.