Rūdsar weather in January

In January, Rūdsar sees average daytime highs of 11°C and overnight lows near 8°C, with 123 mm of precipitation across 13 wet days and about 9.7 hours of daylight. It is the 11th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 11°C through the month. The sky is clear or mostly clear about 35% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 30 min at the start of January to 10 h 06 min by month's end. Set against the rest of the year, January is Rūdsar's 7th-clearest and 5th-windiest month. For the whole year in context, see Rūdsar's year-round climate.

Daytime high
11°
11th warmest
Overnight low
2nd coldest
Precipitation
123 mm
13 wet days
Daylight
9 h 42 min
7:27 AM – 5:09 PM
Cloud cover
59%
7th clearest
Wind
11 km/h
5th windiest
Solar energy
2.33 kWh/m²
Travel score
2.7
out of 10

Rūdsar is city in Gilan 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

Day-to-day highs hold fairly steady near 11°C through the month.

A typical January day in Rūdsar reaches about 11°C in the afternoon and slips back to 8°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 15°C. Set against its neighbours, January runs about 2°C cooler than December and on par with February.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1129
2129
3129
4129
5129
6129
7129
8128
9128
10118
11118
12118
13118
14118
15118
16118
17118
18118
19118
20117
21117
22117
23117
24117
25117
26117
27117
28117
29117
30117
31117

Rūdsar weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 123131.29.72.7
Feb11° / 11612.51.610.62.4
Mar13° / 10613.50.411.73.3
Apr16° / 12°7410.6012.95.0
May21° / 17°417.70146.9
Jun25° / 22°466.6014.57.8
Jul28° / 24°497.1014.37.1
Aug28° / 25°608.8013.46.6
Sep25° / 22°14512.8012.36.6
Oct22° / 18°18914.80116.0
Nov17° / 14°18614.50.2104.8
Dec13° / 10°136130.59.53.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35050
45050
54951
64951
74951
84852
94753
104852
114852
124753
134753
144654
154555
164555
174555
184456
194555
204555
214456
224456
234555
244555
254555
264555
274555
284753
294753
304852
314852

Chance of precipitation in January

Any precipitationSnow

Rūdsar gets around 123 mm of rain and snow over 13 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 42% and peaks near 43% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1372
2372
3382
4383
5393
6403
7413
8413
9423
10433
11434
12434
13434
14434
15434
16434
17434
18434
19434
20434
21434
22424
23424
24425
25425
26425
27425
28426
29426
30426
31426

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 11 km/h in January.

Across January, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 30 min at the start of January to 10 h 06 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 7:27 AM to 7:19 AM, and sunset from 4:57 PM to 5:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.57:274:57
29.57:284:57
39.57:284:58
49.57:284:59
59.57:285:00
69.57:285:00
79.67:285:01
89.67:285:02
99.67:285:03
109.67:285:04
119.67:285:05
129.67:285:06
139.77:275:07
149.77:275:08
159.77:275:08
169.77:275:09
179.77:275:10
189.87:265:11
199.87:265:12
209.87:265:13
219.87:255:14
229.87:255:15
239.97:245:16
249.97:245:17
259.97:235:18
269.97:235:20
2710.07:225:21
2810.07:215:22
2910.07:215:23
3010.17:205:24
3110.17:195:25

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.33 kWh/m².

For context, solar energy here swings from a low near 2.01 kWh/m² to a high of 6.34 kWh/m² in June across the year — January's 2.33 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.2Moderate
22.2Moderate
32.2Moderate
42.2Moderate
52.2Moderate
62.2Moderate
72.2Moderate
82.2Moderate
92.2Moderate
102.2Moderate
112.2Moderate
122.2Moderate
132.3Moderate
142.3Moderate
152.3Moderate
162.3Moderate
172.3Moderate
182.3Moderate
192.4Moderate
202.4Moderate
212.4Moderate
222.4Moderate
232.5Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.7Moderate
312.7Moderate
Planning a trip in January

Hazard calendar for Rūdsar

In seasonPeak

In January, Rūdsar sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Rūdsar's rainy season runs September–March, when most of the year's rain falls.

Rūdsar sees seasonal dust haze (May), heaviest in May.

Rainy season
Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Rūdsar?

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

2.7
Sightseeing
11th-best month of the year
0.0
Beach & pool
11th-best month of the year

January is a weaker month for outdoor sightseeing in Rūdsar.

What to pack for Rūdsar in January

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

In January, Rūdsar sees daytime highs around 11°C and nights near 8°C. Pack a warm layer. Worth having: rain gear. About 13 days see rain.

a warm layerrain gear

Sea temperature near Rūdsar in January

The nearest coast averages about 12°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore 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 5 — about 5.5 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb10Bracing
Mar11Bracing
Apr13Bracing
May19Cool
Jun24Warm
Jul27Warm
Aug28Warm
Sep26Warm
Oct23Refreshing
Nov19Cool
Dec15Bracing

UV index in Rūdsar in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rūdsar peaks around July 18 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 18UV 9Jan 11UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Moderate

Air quality in Rūdsar 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 Rūdsar 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).

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 2129 µg/m³Jul 1115 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb19Moderate
Mar26Moderate
Apr21Moderate
May20Moderate
Jun16Moderate
Jul15Moderate
Aug21Moderate
Sep30Moderate
Oct28Moderate
Nov22Moderate
Dec18Moderate
Location & terrain

Where is Rūdsar?

Rūdsar sits at 37.1°N, 50.3°E, -23 m above sea level, in Iran. The nearest listed city is Amlash, 10 km away.

Topography around Rūdsar

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

Within 3 km, the terrain around Rūdsar has only modest variations in elevation — a maximum elevation change of 16 m around an average of -22 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 974 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,165 m.

The land around Rūdsar is covered by cropland (38%) and artificial surfaces (25%) within 3 km, water (37%), trees (26%) and cropland (25%) within 16 km, and water (48%) and trees (21%) within 80 km.

3 km
16 m
16 km
974 m
80 km
4,165 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Amlash 10 km · Langarūd 14 km · Lāhījān 26 km · Āstāneh-ye Ashrafīyeh 34 km · Sīāhkal 37 km · Rāmsar 40 km · Katālem va Sādāt Shahr 45 km · Khomām 63 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 Rūdsar (37.137°, 50.2917°, elevation -23 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).