Zanjan in Summer

In summer (June, July and August), Zanjan sees average daytime highs around 28°C and overnight lows near 13°C, with 32 mm of rain over about 10 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 28°C by late August. The sky is clear or mostly clear about 82% of the time across summer, and the air most often feels dry.

Summer is Zanjan's best season of the year to visit on our travel score. For the whole year in context, see Zanjan's year-round climate.

Avg daytime high: 28°C; warmest season of the year
Avg overnight low: 13°C
Rainfall: 32 mm; 10 wet days
Avg wind: 10 km/h
Travel score: 7.5; best season of the year
Months: Jun · Jul · Aug

← Spring Zanjan year-round climate Fall →

Spring Summer Fall Winter

Temperature in Zanjan in Summer

Average highAverage lowShaded bands: 10–90% of days

Over the season highs climb from about 25°C in early June to 28°C by late August.

A typical summer day in Zanjan reaches about 28°C and drops to 13°C overnight. The warmest of the three months is August, the coolest June.

How summer really feels in Zanjan

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.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Zanjan 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° / -7°	43	8.9	8.5	9.8	0.0
Feb	4° / -6°	53	9.9	8.1	10.6	0.2
Mar	10° / -1°	68	12.7	6.8	11.7	2.2
Apr	16° / 4°	76	13.3	1.5	12.9	4.5
May	21° / 8°	58	12.5	0.1	13.9	6.4
Jun	26° / 12°	17	4.7	0	14.5	8.0
Jul	29° / 14°	10	2.8	0	14.3	7.4
Aug	29° / 14°	6	2.1	0	13.4	7.2
Sep	25° / 11°	8	2.2	0	12.2	8.6
Oct	19° / 6°	35	6.6	0.4	11.1	6.8
Nov	10° / 0°	55	8.8	3.6	10	2.5
Dec	5° / -4°	40	7.8	6.5	9.5	0.1

Cloud cover in Summer

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 82% of the time across summer.

Chance of precipitation in Summer

Any precipitation

Zanjan gets around 32 mm of rain over 10 wet days across summer. The line is the day-by-day chance of measurable precipitation.

Humidity in Summer

DryComfortableHumidMuggyOppressiveMiserable

Most of summer feels dry — 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

DaylightNight

Daylight runs from about 14 h 18 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

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across summer, about 7.1 kWh/m².

Planning a trip in summer

Is summer a good time to visit Zanjan?

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.

7.5

Sightseeing

1st-best month of the year

8.5

Beach & pool

1st-best month of the year

summer is one of the better times to visit Zanjan for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Zanjan in Summer

From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In summer, Zanjan sees daytime highs around 28°C and nights near 13°C. Pack light clothes and sun protection. About 10 days see rain.

light clothessun protection

UV index in Zanjan in Summer

LowModerateHighVery highExtreme

Clear-sky midday UV across summer averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Zanjan peaks around July 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 13 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	3	5	5	7	9	10	11	10	8	5	3	4
Level	Moderate	Moderate	Moderate	Very high	Very high	Extreme	Extreme	Extreme	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	3	Moderate
Feb	5	Moderate
Mar	5	Moderate
Apr	7	Very high
May	9	Very high
Jun	10	Extreme
Jul	11	Extreme
Aug	10	Extreme
Sep	8	Very high
Oct	5	High
Nov	3	Moderate
Dec	4	Moderate

Air quality in Zanjan in Summer

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.

Air quality in Zanjan is worst in April — around 25 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (July, 13 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Zanjan's WHO annual average of 17.5 µg/m³.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	16	17	23	25	23	17	13	14	15	16	16	15
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	16	Moderate
Feb	17	Moderate
Mar	23	Moderate
Apr	25	Moderate
May	23	Moderate
Jun	17	Moderate
Jul	13	Moderate
Aug	14	Moderate
Sep	15	Moderate
Oct	16	Moderate
Nov	16	Moderate
Dec	15	Moderate

Location & terrain

Where is Zanjan?

Zanjan sits at 36.7°N, 48.5°E, 1,666 m above sea level, in Iran. The nearest listed city is Qīdar, 63 km away.

Topography around Zanjan

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Zanjan.

Within 3 km, the terrain around Zanjan has only modest variations in elevation — a maximum elevation change of 175 m around an average of 1,672 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,155 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,101 m.

The land around Zanjan is covered by artificial surfaces (73%) within 3 km, grassland (51%) and cropland (30%) within 16 km, and grassland (53%) and cropland (36%) within 80 km.

3 km

175 m

artificial surfaces 73%

16 km

1,155 m

grassland 51%

80 km

3,101 m

grassland 53%

treesgrasslandcroplandartificial surfacesbare terrain

← Spring Zanjan year-round climate Fall →

Summer weather nearby: Qīdar 63 km · Manjīl 81 km · Khorramdarreh 81 km · Pādegān-e Manjīl 82 km · Abhar 87 km · Fūman 95 km · Māsāl 95 km · Şowme‘eh Sarā 101 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 Zanjan (36.6764°, 48.4963°, elevation 1,666 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.