Fīrūzkūh weather in January

In January, Fīrūzkūh sees average daytime highs of -2°C and overnight lows near -8°C, with 27 mm of precipitation across 6.5 wet days and about 9.9 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about -0°C in the first days to -2°C by the end. The sky is clear or mostly clear about 51% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 36 min at the start of January to 10 h 12 min by month's end. Set against the rest of the year, January is Fīrūzkūh's 6th-clearest and 12th-windiest month. For the whole year in context, see Fīrūzkūh's year-round climate.

Daytime high
-2°
12th warmest
Overnight low
-8°
1st coldest
Precipitation
27 mm
6.5 wet days
Daylight
9 h 48 min
7:13 AM – 5:03 PM
Cloud cover
43%
6th clearest
Wind
5 km/h
12th windiest
Solar energy
3.36 kWh/m²
Travel score
0.0
out of 10

Fīrūzkūh is city in Tehran Province, Iran.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about -0°C in the first days to -2°C by the end.

A typical January day in Fīrūzkūh reaches about -2°C in the afternoon and slips back to -8°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between -7°C and 4°C. Set against its neighbours, January runs about 3°C cooler than December and about 1°C cooler than February.

-15°-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
10-7
20-7
30-7
4-1-7
5-1-7
6-1-8
7-1-8
8-1-8
9-1-8
10-1-8
11-2-8
12-2-8
13-2-8
14-2-8
15-2-8
16-2-9
17-2-9
18-2-9
19-2-9
20-2-9
21-2-9
22-2-9
23-2-9
24-2-9
25-2-8
26-2-8
27-2-8
28-2-8
29-2-8
30-2-8
31-2-8

How January really feels in Fīrūzkūh

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
31
wind chill below the day's low

The story in January is cold — wind chill drags the overnight "feels like" below the raw low.

Fīrūzkūh weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -8°276.57.49.90.0
Feb-1° / -7°367.37.910.60.0
Mar / -3°539.47.811.70.2
Apr11° / 6311.93.412.92.5
May17° / 6313.70.513.95.0
Jun22° / 12°4310.7014.46.9
Jul25° / 15°388.8014.27.7
Aug24° / 15°337.7013.48.0
Sep21° / 11°328.2012.27.3
Oct14° / 368.71.211.14.7
Nov / -1°357.65.910.10.9
Dec / -6°276.46.79.60.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 15% of January, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16931
26832
36832
46832
56733
66733
76634
86535
96535
106436
116436
126535
136535
146535
156634
166634
176634
186634
196634
206634
216634
226733
236733
246634
256634
266634
276634
286733
296634
306634
316634

Chance of precipitation in January

Any precipitationSnow

Fīrūzkūh gets around 27 mm of rain and snow over 6.5 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 21% and peaks near 24% on the wettest days, and about 7 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
11820
21820
31920
41921
51921
62022
72022
82123
92123
102224
112224
122224
132224
142224
152124
162124
172124
182124
192124
202124
212124
222124
232125
242125
252225
262226
272326
282326
292427
302427
312427

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 5 km/h in January, the calmest month.

Across January, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 36 min at the start of January to 10 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over January. Sunrise moves from 7:14 AM to 7:07 AM, and sunset from 4:51 PM to 5:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.67:144:51
29.67:144:51
39.67:144:52
49.67:144:53
59.77:144:54
69.77:144:54
79.77:144:55
89.77:144:56
99.77:144:57
109.77:144:58
119.77:144:58
129.87:144:59
139.87:145:00
149.87:145:01
159.87:145:02
169.87:135:03
179.87:135:04
189.97:135:05
199.97:135:06
209.97:125:07
219.97:125:08
2210.07:125:09
2310.07:115:10
2410.07:115:11
2510.07:105:12
2610.17:105:13
2710.17:095:14
2810.17:095:15
2910.17:085:16
3010.27:075:17
3110.27:075:18

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.36 kWh/m².

For context, solar energy here swings from a low near 2.92 kWh/m² to a high of 6.7 kWh/m² in June across the year — January's 3.36 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.1Moderate
33.1Moderate
43.1Moderate
53.1Moderate
63.1Moderate
73.1Moderate
83.2Moderate
93.2Moderate
103.2Moderate
113.2Moderate
123.2Moderate
133.3Moderate
143.3Moderate
153.3Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.5Moderate
213.5Moderate
223.5Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.7Moderate
273.7Moderate
283.7Moderate
293.8Moderate
303.8Moderate
313.9Moderate
Planning a trip in January

Is January a good time to visit Fīrūzkūh?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.0
Sightseeing
10th-best month of the year
0.0
Beach & pool
8th-best month of the year

January is a weaker month for outdoor sightseeing in Fīrūzkūh.

What to pack for Fīrūzkūh in January

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

In January, Fīrūzkūh sees daytime highs around -2°C and nights near -8°C. Pack a warm layer and a heavy coat. About 7 days see rain.

a warm layera heavy coat

UV index in Fīrūzkūh in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Fīrūzkūh peaks around July 19 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 19UV 11Jan 11UV 3
UV index (midday)Level
Jan3Moderate
Feb5High
Mar5Moderate
Apr8Very high
May10Very high
Jun10Very high
Jul11Extreme
Aug11Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Fīrūzkūh in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Fīrūzkūh is worst in December — around 97 µg/m³ PM2.5 (unhealthy), about 3.0× the cleanest month (July, 33 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorPoorUnhealthyDec 2396 µg/m³Jul 1833 µg/m³
PM2.5 (µg/m³)Level
Jan95Unhealthy
Feb88Unhealthy
Mar76Unhealthy
Apr68Unhealthy
May57Unhealthy
Jun42Poor
Jul33Moderate
Aug38Poor
Sep51Poor
Oct67Unhealthy
Nov83Unhealthy
Dec97Unhealthy
Location & terrain

Where is Fīrūzkūh?

Fīrūzkūh sits at 35.8°N, 52.8°E, 1,943 m above sea level, in Iran. The nearest listed city is Zīr Āb, 50 km away.

Topography around Fīrūzkūh

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

Within 3 km, the terrain around Fīrūzkūh has significant variations in elevation — a maximum elevation change of 555 m around an average of 2,025 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,550 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,587 m.

The land around Fīrūzkūh is covered by grassland (47%) and bare terrain (21%) within 3 km, grassland (67%) and bare terrain (20%) within 16 km, and grassland (37%), bare terrain (37%) and trees (20%) within 80 km.

3 km
555 m
16 km
1,550 m
80 km
5,587 m
treesgrasslandcroplandartificial surfacesbare terrain
January weather nearby: Zīr Āb 50 km · Mahdishahr 53 km · Semnan 60 km · Damāvand 63 km · Garmsār 71 km · Īstgāh-e Rāh Āhan-e Garmsār 72 km · Rūdehen 78 km · Qā’em Shahr 79 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
Muslim 99%Christian 1%Baha'i 0%agnostic 0%

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 Fīrūzkūh (35.7567°, 52.7706°, elevation 1,943 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).