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Zanjan weather & best time to visit

City break

Zanjan at a glance

Best time
Apr – Jun, Sep – Oct
Warmest month
Aug · 33°
Sunshine a year
2,900 h
Rain a year
466 mm
Climate
Temperate
Time zone
UTC+3:30
Elevation
1,666 m

Climate in Zanjan

Zanjan has a temperate climate with warm summers and cool winters. August is the warmest month with average highs of 33 °C, while January is the coolest at 6 °C. With around 2,900 hours of sunshine a year, Zanjan is sunny; June is the sunniest month with 11.5 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Zanjan

The best time to visit Zanjan is from April to June and from September to October. For sightseeing, day trips and hiking, conditions are most comfortable in October. From July to August it can get very hot, with highs of up to 33 °C. Rain is frequent in March; the wettest month is April with 77 mm.

Zanjan through the seasons

How the weather changes over the seasons, with averages for each.

Zanjan in spring

Mar – May

68

Good

  • 13–24 °C by day
  • 7.5 h of sun a day
  • 39 rainy days in all

Zanjan in summer

Jun – Aug

68

Good

  • 30–33 °C by day
  • 11.3 h of sun a day
  • 12 rainy days in all

Zanjan in autumn

Sep – Nov

78

Good

  • 14–29 °C by day
  • 7.9 h of sun a day
  • 18 rainy days in all

Zanjan in winter

Dec – Feb

27

Poor

  • 6–8 °C by day
  • 5.0 h of sun a day
  • 26 rainy days in all

Which month for what?

Beach & swimming

No sea nearby

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

Oct

15–28 °C and not too much rain

Peak heat

Jul – Aug

Highs of 33 °C or more

Rainy months

Mar

Rainy season or more than 12 rainy days

Snow

Nov – Mar

Snow on 2 or more days

Find your perfect month

Tell us what you like and we rate every month in Zanjan for you.

Sunshine
Little rain

Your best months: May, October

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

90

Holiday weather in October

Excellent

Best time to visit: April – June, September – October

Good forSightseeing & walks

A typical day in October

  1. Morning, 08:00: about 12°
  2. Midday, 13:00: about 22°
  3. Afternoon, 16:00: about 21°
  4. Evening, 20:00: about 14°
  5. Night, 23:00: about 11°

06:2217:41

Cool evenings: pack a jumper or a jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 06:06–06:57 · evening 17:06–17:57
Blue hour
Morning 05:56–06:06 · evening 17:57–18:07

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Zanjan compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 25° at the start of the month to 18° at the end. The days get 1.1 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high25°18°
Night-time low8°4°
Daylight11.9 h10.8 h

What is the weather like in Zanjan in October?

In October, Zanjan is warm: daytime highs average 22 °C, and nights cool down to about 6 °C. The sun shines for around 7.9 hours a day. Rain falls on about 7 days, adding up to 36 mm. All in all, October is an excellent month for a holiday in Zanjan.

More details for October

Daylight
11 h 19 min06:22 – 17:41
UV index
5 · moderateclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
13 km/haverage daily peakAll months
Cloud cover
42 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snowAll months
Time zone
UTC+3:30offset from UTC

How the score comes together

  • Temperatureweight 50 %100 %
  • Sunshineweight 20 %82 %
  • Few rainy daysweight 30 %80 %

Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.

What to pack in October

  • Sunscreen
  • A jumper for the evenings

Compare two months in Zanjan

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

October and September bring similar holiday weather to Zanjan (score 90 and 87). In September, days are 7 °C warmer than in October. September has 4 fewer rainy days. The sun shines 2 hours longer a day in September.

October vs September, Zanjan
MonthOctoberSeptember
Holiday weather score9087
Daytime high22°29°
Night-time low6°11°
Sunshine7.9 h10.3 hbetter
Rainy days73better
Rainfall36 mm11 mmbetter

Based on the climate averages 1996–2025.

Zanjan month by month

The typical weather for every month at a glance.

26January6° · 4.7 h

In January, Zanjan is cold: daytime highs average 6 °C, and nights often drop below freezing (−5 °C). Expect around 4.7 hours of sunshine a day. Rain falls on about 8 days, adding up to 41 mm. Snow falls on about 6 days. All in all, January is not an ideal month for a holiday in Zanjan.

Zanjan in January
27February8° · 5.7 h

In February, Zanjan is cold: daytime highs average 8 °C, and nights often drop below freezing (−3 °C). Expect around 5.7 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 47 mm in total. Snow falls on about 5 days. All in all, February is not an ideal month for a holiday in Zanjan.

Zanjan in February
49March13° · 6.3 h

In March, Zanjan is cool: daytime highs average 13 °C, and nights cool down to about 1 °C. Expect around 6.3 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 65 mm in total. Snow falls on about 4 days. All in all, March is a so-so month for a holiday in Zanjan.

Zanjan in March
75April19° · 7.3 h

In April, Zanjan is mild: daytime highs average 19 °C, and nights cool down to about 5 °C. The sun shines for around 7.3 hours a day. Rain is frequent, with about 13 rainy days and 77 mm in total. All in all, April is a good month for a holiday in Zanjan.

Zanjan in April
80May24° · 9.0 h

In May, Zanjan is warm: daytime highs average 24 °C, and nights cool down to about 8 °C. With around 9.0 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 13 rainy days and 66 mm in total. All in all, May is an excellent month for a holiday in Zanjan.

Zanjan in May
78June30° · 11.5 h

In June, Zanjan is hot: daytime highs average 30 °C, and nights cool down to about 12 °C. With around 11.5 hours of sunshine a day, there is plenty of sun. Rain falls on about 6 days, adding up to 18 mm. On about 16 days the thermometer climbs to 30 °C or more. All in all, June is a good month for a holiday in Zanjan.

Zanjan in June
63July33° · 11.3 h

In July, Zanjan is very hot: daytime highs average 33 °C, and nights cool down to about 15 °C. With around 11.3 hours of sunshine a day, there is plenty of sun. Rain is rare: about 4 days bring 13 mm in total. On about 23 days the thermometer climbs to 30 °C or more. All in all, July is a good month for a holiday in Zanjan.

Zanjan in July
62August33° · 11.2 h

In August, Zanjan is very hot: daytime highs average 33 °C, and nights cool down to about 15 °C. With around 11.2 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 8 mm in total. On about 24 days the thermometer climbs to 30 °C or more. All in all, August is a good month for a holiday in Zanjan.

Zanjan in August
87September29° · 10.3 h

In September, Zanjan is hot: daytime highs average 29 °C, and nights cool down to about 11 °C. With around 10.3 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 11 mm in total. On about 15 days the thermometer climbs to 30 °C or more. All in all, September is an excellent month for a holiday in Zanjan.

Zanjan in September
90October22° · 7.9 h

In October, Zanjan is warm: daytime highs average 22 °C, and nights cool down to about 6 °C. The sun shines for around 7.9 hours a day. Rain falls on about 7 days, adding up to 36 mm. All in all, October is an excellent month for a holiday in Zanjan.

Zanjan in October
57November14° · 5.4 h

In November, Zanjan is cool: daytime highs average 14 °C, and nights cool down to about 1 °C. Expect around 5.4 hours of sunshine a day. Rain falls on about 8 days, adding up to 45 mm. Snow falls on about 2 days. All in all, November is a so-so month for a holiday in Zanjan.

Zanjan in November
27December8° · 4.5 h

In December, Zanjan is cold: daytime highs average 8 °C, and nights often drop below freezing (−3 °C). Expect around 4.5 hours of sunshine a day. Rain falls on about 8 days, adding up to 39 mm. Snow falls on about 4 days. All in all, December is not an ideal month for a holiday in Zanjan.

Zanjan in December

Climate in detail

Year & climate table

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Zanjan

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Frost below 0°
  • Cold 0–8°
  • Cool 8–15°
  • Pleasant 15–20°

ColdOctober: nights around 6°. The room should be heated.

The coolest nights are in January (−5°), the warmest in July (15°). Nights are pleasant for sleeping (15 to 20 °C) from July to August. Nights fall below 8 °C on average from October to April, so the room should be heated.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 22°Night 6°
DayNight
MonthScoreDayNightSunRain daysRain mm
JanuaryJan266°−5°4.7 h841
FebruaryFeb278°−3°5.7 h1047
MarchMar4913°1°6.3 h1265
AprilApr7519°5°7.3 h1377
MayMay8024°8°9.0 h1366
JuneJun7830°12°11.5 h618
JulyJul6333°15°11.3 h413
AugustAug6233°15°11.2 h38
SeptemberSep8729°11°10.3 h311
OctoberOct9022°6°7.9 h736
NovemberNov5714°1°5.4 h845
DecemberDec278°−3°4.5 h839

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

36.68° N, 48.50° E · 1,666 m · Asia/Tehran

Sunshine
Sunshine

Sunshine hours in Zanjan

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
2,900 hours
Sunniest month
Jun · 11.5 h a day
Least sunshine
Dec · 4.5 h a day
OctoberSunshine 7.9 hDaylight 11.3 hShare of daylight 70 %
SunshineDaylight

In October, the sun shines for about 7.9 of 11.3 hours of daylight in Zanjan, 70 % of the daylight hours.

Sunshine hours: measured at the weather station 3 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.

Rain
Rain

Rain in Zanjan: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
466 mm on 95 days
Wettest month
Apr · 77 mm
Driest month
Aug · 8 mm
OctoberRainy days 7Rainfall 36 mm

In October, Zanjan has about 7 rainy days with 36 mm of rain in total.

UV index
Sun protection

UV index in Zanjan

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
5 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.

The sun is strongest in June (UV 12).

Minutes until sunburn in October

Very fair skin
about 25 min
Fair skin
about 30 min
Light brown skin
about 45 min
Olive skin
about 55 min

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds
Wind & clouds

Wind and clouds in Zanjan

How breezy and how cloudy Zanjan is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
15 km/h · gentle breeze
Windiest month
Jul · 18 km/h
Calmest month
Dec · 11 km/h
OctoberWind 13 km/hBeaufort 3

In October, the wind in Zanjan typically peaks at 13 km/h during the day: Beaufort 3, gentle breeze.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
41 % · mostly sunny
Clearest month
Aug · 23 %
Cloudiest month
Mar · 52 %
OctoberCloud cover 42 %Sunshine 7.9 h

In October, cloud covers on average 42 % of the sky over Zanjan: mostly sunny, with about 7.9 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Heat & humidity
Heat & humidity

Heat and humidity in Zanjan

How often the day gets hot in Zanjan (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
81 days
Hottest month
Aug · 33 °C
Hot months
Jun – Sep

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Daytime high 22 °C

In October, Zanjan has about 0 hot days, with an average daytime high of 22 °C: pleasant. Heat plays no part this month.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Snow
Snow

Snow in Zanjan

When Zanjan is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.

Snow days a year
22 days
Fresh snow a year
84 cm
Snowy months
Jan – Feb

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 0Fresh snow 1 cmChance of snow 3 / 100

In October, it hardly ever snows in Zanjan.

Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.

Planning a trip to Zanjan

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Zanjan in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Zanjan has its best school-holiday weather during October half-term (score 90) and its weakest during the Christmas holidays (score 27).

  • Easter holidays

    Mar – Apr

    67

    Good

    • 17 °C by day
    • 7.0 h of sun a day
    • 13 rainy days a month

    Keep in mind: Frequent rain, Snow

  • May half-term

    May – Jun

    80

    Excellent

    • 25 °C by day
    • 9.5 h of sun a day
    • 12 rainy days a month
  • Summer holidays

    Jul – Aug

    62

    Good

    • 33 °C by day
    • 11.2 h of sun a day
    • 3 rainy days a month

    Keep in mind: Peak heat

  • October half-term

    Oct

    90

    ExcellentBest holidays

    • 22 °C by day
    • 7.9 h of sun a day
    • 7 rainy days a month

    Good for: Sightseeing & walks

  • Christmas holidays

    Dec – Jan

    27

    Poor

    • 7 °C by day
    • 4.6 h of sun a day
    • 8 rainy days a month

    Keep in mind: Snow

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 5 h 30 min
Distance
4,150 km
Time zone
UTC+3:30
Jet lag
Hardly any (under 3 h)

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Good to know: Iran

Currency
Iranian Rial (IRR)
Language
Persian
Sockets
Type C, F · 220 V
Traffic
Drives on the right
Dialling code
+98

UK plugs need a travel adapter

Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.

Compare & alternatives

Compare with another place
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Zanjan compared

Put Zanjan side by side with another destination.

Nearby:
Compare with home:

Zanjan vs Rasht

In October Zanjan has the better holiday weather (score 90 vs 60). During the day Rasht is 1 °C warmer than Zanjan. Rasht gets 4 fewer hours of sunshine a day.

Zanjan vs Rasht, in October
in OctoberZanjanRasht
Holiday weather score9060
Daytime high22°23°
Sunshine8 h4 h
Rainy days715
Best timeApr – Jun, Sep – OctApr – Jun

Through the year

OctoberZanjan 22°Rasht 23°
ZanjanRasht
Go to Rasht
Best places in the country
Ranking

Iran in October: the best places

In October, Zanjan ranks 17 among the 31 nearest destinations in this country.

  1. Isfahan26°100
  2. 2Kerman26°100
  3. 3Arak23°98
  4. 4Nishapur25°98
  5. 5Mashhad24°98
  6. 6Sanandaj24°97
  7. 7Maragheh21°97
  8. 8Karaj24°97
  9. 17ZanjanThis page22°90
All destinations: Iran
Places nearby

Near Zanjan

Other destinations close by.

Places with a similar climate

Places with a climate like Zanjan

Destinations whose weather through the year is closest to Zanjan's – good alternatives.

  1. 85 % similar94PanjakentTajikistan21°Best time: May, Sep – Oct
  2. 81 % similar88BurdurTurkey22°Best time: Apr – Jun, Sep – Oct
  3. 79 % similar97MaraghehIran21°Best time: May – Jun, Sep – Oct
  4. 78 % similar96TabrizIran22°Best time: Apr – Jun, Sep – Oct

Frequently asked questions about Zanjan

When is the best time to visit Zanjan?

The best time to visit Zanjan is from April to June and from September to October. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

What is the warmest month in Zanjan?

August is the warmest month, with average highs of 33 °C and nights around 15 °C. January is the coolest month at 6 °C.

When does it rain most in Zanjan?

Rain is frequent in March; the wettest month is April with 77 mm. The driest month is August with 8 mm.

How many hours of sunshine does Zanjan get?

Zanjan gets around 2,900 hours of sunshine a year. The sunniest month is June with 11.5 hours a day; in December there are 4.5 hours a day.

What time zone is Zanjan in?

Zanjan is on UTC+3:30 all year.

How long is the flight from London to Zanjan?

A nonstop flight from London to Zanjan takes about 5 h 30 min, for a straight-line distance of about 4,150 km.

Which school holidays are best for Zanjan?

Zanjan has its best school-holiday weather during October half-term (score 90) and its weakest during the Christmas holidays (score 27). Holiday ratings (0–100): Easter holidays 67, May half-term 80, summer holidays 62, October half-term 90, Christmas holidays 27.