Lāhījān in Summer
In summer (June, July and August), Lāhījān sees average daytime highs around 29°C and overnight lows near 21°C, with 220 mm of rain over about 30 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 26°C in early June to 28°C by late August. The sky is clear or mostly clear about 44% of the time across summer, and the air most often feels muggy.
Summer is Lāhījān's best season of the year to visit on our travel score. For the whole year in context, see Lāhījān's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 21°C
- Rainfall
- 220 mm
- 30 wet days
- Avg wind
- 8 km/h
- Travel score
- 5.8
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Lāhījān in Summer
Over the season highs climb from about 26°C in early June to 28°C by late August.
A typical summer day in Lāhījān reaches about 29°C and drops to 21°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Lāhījān
Once humidity and wind are folded in, summer brings about 29 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Lāhījān 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 | 12° / 4° | 116 | 12 | 1.6 | 9.7 | 2.9 |
| Feb | 12° / 4° | 121 | 12.3 | 2.2 | 10.6 | 2.9 |
| Mar | 15° / 7° | 115 | 13.3 | 0.4 | 11.7 | 4.1 |
| Apr | 19° / 10° | 81 | 10.5 | 0 | 12.9 | 5.8 |
| May | 23° / 15° | 50 | 8.5 | 0 | 14 | 7.0 |
| Jun | 27° / 19° | 64 | 8.4 | 0 | 14.5 | 6.7 |
| Jul | 29° / 22° | 72 | 9.9 | 0 | 14.3 | 5.5 |
| Aug | 30° / 22° | 84 | 11.7 | 0 | 13.4 | 5.2 |
| Sep | 26° / 19° | 158 | 14.1 | 0 | 12.3 | 6.0 |
| Oct | 22° / 15° | 174 | 14.3 | 0 | 11 | 6.1 |
| Nov | 17° / 10° | 168 | 13.6 | 0.2 | 10 | 4.9 |
| Dec | 13° / 6° | 124 | 11.5 | 0.7 | 9.5 | 3.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 44% of the time across summer.
Chance of precipitation in Summer
Lāhījān gets around 220 mm of rain over 30 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 8 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 6.0 kWh/m².
Hazard calendar for Lāhījān
None of Lāhījān's seasonal hazards peak in summer. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Lāhījān sees seasonal dust haze (May), heaviest in May.
Is summer a good time to visit Lāhījān?
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 Lāhījān for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Lāhījān in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Lāhījān sees daytime highs around 29°C and nights near 21°C. Pack light clothes and sun protection. Worth having: rain gear. About 30 days see rain.
Sea temperature near Lāhījān in Summer
The nearest coast averages about 26°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 22 km away) is warmest in August at about 28°C and coldest in February near 10°C.
It's comfortable for a long swim from May 24 to Nov 4 — about 5.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 12 | 10 | 11 | 13 | 19 | 24 | 27 | 28 | 26 | 23 | 19 | 15 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Warm | Warm | Warm | Warm | Refreshing | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 12 | Bracing |
| Feb | 10 | Bracing |
| Mar | 11 | Bracing |
| Apr | 13 | Bracing |
| May | 19 | Cool |
| Jun | 24 | Warm |
| Jul | 27 | Warm |
| Aug | 28 | Warm |
| Sep | 26 | Warm |
| Oct | 23 | Refreshing |
| Nov | 19 | Cool |
| Dec | 15 | Bracing |
UV index in Lāhījān 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 Lāhījān peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 4 | 4 | 6 | 8 | 8 | 9 | 8 | 6 | 5 | 3 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Very high | Very high | High | Moderate | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 4 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Air quality in Lāhījān 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 Lāhījān is worst in September — around 30 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (July, 15 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) | 18 | 19 | 26 | 21 | 20 | 16 | 15 | 21 | 30 | 28 | 22 | 18 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 19 | Moderate |
| Mar | 26 | Moderate |
| Apr | 21 | Moderate |
| May | 20 | Moderate |
| Jun | 16 | Moderate |
| Jul | 15 | Moderate |
| Aug | 21 | Moderate |
| Sep | 30 | Moderate |
| Oct | 28 | Moderate |
| Nov | 22 | Moderate |
| Dec | 18 | Moderate |
Where is Lāhījān?
Lāhījān sits at 37.2°N, 50.0°E, 4 m above sea level, in Iran. The nearest listed city is Āstāneh-ye Ashrafīyeh, 9.0 km away.
Topography around Lāhījān
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Lāhījān.
Within 3 km, the terrain around Lāhījān has significant variations in elevation — a maximum elevation change of 344 m around an average of 18 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,110 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,710 m.
The land around Lāhījān is covered by artificial surfaces (36%) and trees (34%) within 3 km, cropland (45%) and trees (43%) within 16 km, and water (43%) and trees (23%) within 80 km.
Iran travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Power plugs
- Type C / F
- 220 V · 50 Hz
- Prices
- ≈ 352% of US
- price level, 2025
- GDP per capita
- $3,924
- 2025
- Happiness
- 5.2 / 10
- World Happiness, 2025
- Safe drinking water
- 94%
- of population, 2024
- Homicide rate
- 2.4
- per 100k, 2014
- Road deaths
- 21.5
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 492
- 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 Lāhījān (37.2042°, 50.0092°, elevation 4 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.