Chālūs weather in October

In October, Chālūs sees average daytime highs of 22°C and overnight lows near 19°C, with 205 mm of rain across 15.2 wet days and about 11.1 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 20°C by the end. The sky is clear or mostly clear about 36% of the time in October, and the air most often feels humid.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 30 min by month's end. Set against the rest of the year, October is Chālūs's 6th-clearest and 6th-windiest month. For the whole year in context, see Chālūs's year-round climate.

Daytime high
22°
5th warmest
Overnight low
19°
8th coldest
Rainfall
205 mm
15.2 wet days
Daylight
11 hours
6:18 AM – 5:21 PM
Cloud cover
55%
6th clearest
Wind
9 km/h
6th windiest
Solar energy
3.35 kWh/m²
Travel score
5.9
out of 10

Chālūs is city in Mazandaran Province, Iran.

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 20°C by the end.

A typical October day in Chālūs reaches about 22°C in the afternoon and slips back to 19°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 26°C. Set against its neighbours, October runs about 3°C cooler than September and about 5°C warmer than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12320
22320
32320
42320
52320
62320
72320
82320
92320
102319
112219
122219
132219
142219
152219
162219
172219
182219
192219
202218
212118
222118
232118
242118
252118
262118
272017
282017
292017
302017
312017

Chālūs weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan12° / 14215.20.79.82.6
Feb11° / 12314.1110.62.5
Mar13° / 10014.10.111.73.3
Apr17° / 13°6811.3012.95.1
May21° / 18°489.8013.96.6
Jun25° / 22°498.5014.57.4
Jul27° / 24°5910.8014.36.8
Aug27° / 25°6011.2013.46.6
Sep25° / 22°14814.6012.26.3
Oct22° / 19°20515.2011.15.9
Nov17° / 14°21915.80.1104.7
Dec14° / 11°15614.809.53.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 16% of October, with mostly cloudy or overcast conditions the remaining 48%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25941
35842
45842
55743
65743
75644
85545
95545
105545
115446
125446
135446
145446
155347
165347
175248
185248
195248
205050
215050
225050
234852
244852
254753
264555
274555
284456
294456
304258
314258

Chance of precipitation in October

Any precipitation

Chālūs gets around 205 mm of rain over 15.2 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 49% and peaks near 53% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
151
251
351
450
550
650
749
849
948
1048
1148
1247
1347
1447
1547
1647
1747
1847
1947
2048
2148
2249
2349
2450
2551
2651
2752
2852
2952
3052
3153

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the humid band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 34% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1212293818
2313303816
3314303815
4315313713
5416313712
6416323711
7417323610
851832369
951932368
1051933367
1162033357
1262033346
1362134335
1472135325
1572235314
1672236304
1782337293
1892337283
1992338272
20102339262
21112339252
22122340231
23132340221
24152440211
25162440201
26172440181
27192440170
28202539160
29222538140
30232637130
31252736120

Wind in October

Winds average 9 km/h in October.

Across October, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over October. Sunrise moves from 6:04 AM to 6:33 AM, and sunset from 5:42 PM to 5:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:045:42
211.66:055:41
311.66:065:39
411.56:075:38
511.56:085:36
611.46:095:35
711.46:105:33
811.46:115:32
911.36:115:30
1011.36:125:29
1111.26:135:28
1211.26:145:26
1311.26:155:25
1411.16:165:23
1511.16:175:22
1611.06:185:21
1711.06:195:19
1811.06:205:18
1910.96:215:17
2010.96:225:16
2110.96:235:14
2210.86:245:13
2310.86:255:12
2410.76:265:11
2510.76:275:10
2610.76:285:08
2710.66:295:07
2810.66:305:06
2910.66:315:05
3010.56:325:04
3110.56:335:03

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.35 kWh/m².

For context, solar energy here swings from a low near 2 kWh/m² to a high of 6.42 kWh/m² in June across the year — October's 3.35 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.8Moderate
43.7Moderate
53.7Moderate
63.7Moderate
73.6Moderate
83.6Moderate
93.6Moderate
103.6Moderate
113.5Moderate
123.5Moderate
133.5Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.3Moderate
183.3Moderate
193.3Moderate
203.2Moderate
213.2Moderate
223.1Moderate
233.1Moderate
243.1Moderate
253.0Moderate
263.0Moderate
273.0Moderate
282.9Moderate
292.9Moderate
302.8Moderate
312.8Moderate
Planning a trip in October

Hazard calendar for Chālūs

In seasonPeak

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

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

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

Is October a good time to visit Chālūs?

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

5.9
Sightseeing
6th-best month of the year
4.0
Beach & pool
5th-best month of the year

October is a reasonable time to visit Chālūs for sightseeing.

What to pack for Chālūs in October

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

In October, Chālūs sees daytime highs around 22°C and nights near 19°C. Pack rain gear. About 15 days see rain.

rain gear

Sea temperature near Chālūs in October

The nearest coast averages about 23°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 19 km away) is warmest in August at about 28°C and coldest in February near 11°C.

It's comfortable for a long swim from May 21 to Nov 7 — about 5.6 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb11Bracing
Mar11Bracing
Apr14Bracing
May19Cool
Jun24Warm
Jul27Warm
Aug28Tropical
Sep26Warm
Oct23Refreshing
Nov19Cool
Dec15Cool

UV index in Chālūs in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chālūs peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 17UV 9Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Moderate

Air quality in Chālūs in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Chālūs is worst in February — around 46 µg/m³ PM2.5 (poor), about 3.0× the cleanest month (July, 15 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateFeb 1545 µg/m³Jul 1716 µg/m³
PM2.5 (µg/m³)Level
Jan42Poor
Feb46Poor
Mar42Poor
Apr36Poor
May31Moderate
Jun21Moderate
Jul15Moderate
Aug20Moderate
Sep27Moderate
Oct30Moderate
Nov32Moderate
Dec36Poor
Location & terrain

Where is Chālūs?

Chālūs sits at 36.7°N, 51.4°E, 26 m above sea level, in Iran. The nearest listed city is Nowshahr, 7.0 km away.

Topography around Chālūs

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

Within 3 km, the terrain around Chālūs has significant variations in elevation — a maximum elevation change of 284 m around an average of 33 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,846 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,754 m.

The land around Chālūs is covered by artificial surfaces (40%) and trees (39%) within 3 km, trees (47%) and water (42%) within 16 km, and water (46%), grassland (26%) and trees (21%) within 80 km.

3 km
284 m
16 km
1,846 m
80 km
4,754 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Nowshahr 7.0 km · Tonekābon 52 km · Nūr 54 km · Katālem va Sādāt Shahr 70 km · Rāmsar 75 km · Maḩmūdābād 75 km · Āmol 86 km · Tajrīsh 95 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 Chālūs (36.655°, 51.4204°, elevation 26 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).