Blaj in Summer
In summer (June, July and August), Blaj sees average daytime highs around 27°C and overnight lows near 15°C, with 208 mm of rain over about 32 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Over the season highs climb from about 24°C in early June to 26°C by late August. The sky is clear or mostly clear about 40% of the time across summer, and the air most often feels comfortable.
Summer is Blaj's best season of the year to visit on our travel score. For the whole year in context, see Blaj's year-round climate.
- Avg daytime high
- 27°C
- warmest season of the year
- Avg overnight low
- 15°C
- Rainfall
- 208 mm
- 32 wet days
- Avg wind
- 6 km/h
- Travel score
- 6.4
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Blaj in Summer
Over the season highs climb from about 24°C in early June to 26°C by late August.
A typical summer day in Blaj reaches about 27°C and drops to 15°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Blaj
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Blaj 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 | 2° / -5° | 24 | 6.7 | 4.1 | 8.8 | 0.0 |
| Feb | 5° / -3° | 23 | 6.2 | 3.7 | 10 | 0.3 |
| Mar | 11° / 1° | 34 | 8 | 1.8 | 11.6 | 2.8 |
| Apr | 17° / 6° | 51 | 9.8 | 0.5 | 13.3 | 5.4 |
| May | 22° / 10° | 71 | 12.6 | 0 | 14.7 | 6.3 |
| Jun | 26° / 14° | 84 | 12.1 | 0 | 15.5 | 6.4 |
| Jul | 28° / 16° | 71 | 11.7 | 0 | 15.2 | 6.2 |
| Aug | 28° / 15° | 53 | 8.3 | 0 | 14 | 6.5 |
| Sep | 23° / 11° | 52 | 8 | 0 | 12.3 | 7.2 |
| Oct | 17° / 6° | 42 | 7 | 0 | 10.7 | 5.7 |
| Nov | 9° / 1° | 30 | 6.3 | 1.3 | 9.2 | 2.2 |
| Dec | 3° / -3° | 30 | 6.9 | 3.1 | 8.5 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 40% of the time across summer.
Chance of precipitation in Summer
Blaj gets around 208 mm of rain over 32 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 6 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 18 min in early June to 13 h 12 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 5.7 kWh/m².
Is summer a good time to visit Blaj?
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 a reasonable time to visit Blaj for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Blaj in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Blaj sees daytime highs around 27°C and nights near 15°C. Pack light clothes. Worth having: rain gear and sun protection. About 32 days see rain.
UV index in Blaj in Summer
Clear-sky midday UV across summer averages around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Blaj peaks around July 16 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 7 | 6 | 8 | 8 | 8 | 5 | 3 | 2 | 1 |
| Level | Low | Low | Moderate | Very high | High | Very high | Very high | Very high | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 7 | Very high |
| May | 6 | High |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 8 | Very high |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Blaj?
Blaj sits at 46.2°N, 23.9°E, 246 m above sea level, in Romania. The nearest listed city is Aiud, 21 km away.
Topography around Blaj
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Blaj.
Within 3 km, the terrain around Blaj has only modest variations in elevation — a maximum elevation change of 242 m around an average of 296 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 324 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,196 m.
The land around Blaj is covered by cropland (37%), grassland (29%) and trees (21%) within 3 km, cropland (42%) and grassland (39%) within 16 km, and trees (45%), grassland (31%) and cropland (22%) within 80 km.
Romania travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 44% of US
- price level, 2025
- GDP per capita
- $22,538
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 82%
- of population, 2024
- Homicide rate
- 1.1
- per 100k, 2023
- Road deaths
- 10.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 605
- 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 Blaj (46.1751°, 23.9158°, elevation 246 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.