Sari weather in September

In September, Sari sees average daytime highs of 28°C and overnight lows near 20°C, with 114 mm of rain across 12.1 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 26°C by the end. The sky is clear or mostly clear about 42% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Sari's 3rd-clearest and 9th-windiest month. For the whole year in context, see Sari's year-round climate.

Daytime high
28°
4th warmest
Overnight low
20°
9th coldest
Rainfall
114 mm
12.1 wet days
Daylight
12 h 12 min
5:45 AM – 5:59 PM
Cloud cover
49%
3rd clearest
Wind
6 km/h
9th windiest
Solar energy
4.36 kWh/m²
Travel score
5.7
out of 10

Sari is city in Mazandaran Province, Iran.

Air quality
Very high
PM2.5 36.9 µg/m³ · 2012

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 30°C in the first days to 26°C by the end.

A typical September day in Sari reaches about 28°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 32°C. Set against its neighbours, September runs about 3°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13022
23021
33021
43021
53021
63021
73021
82921
92921
102921
112920
122920
132920
142820
152820
162820
172819
182819
192819
202819
212719
222719
232718
242718
252718
262718
272718
282617
292617
302617

How September really feels in Sari

Once humidity and wind are folded in, September averages 4 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
4
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Sari weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan12° / 698.819.83.5
Feb13° / 729.71.910.63.6
Mar16° / 8111.20.411.74.9
Apr20° / 11°609.5012.96.3
May25° / 16°498.7013.96.9
Jun29° / 20°458.1014.46.1
Jul31° / 22°5710.7014.24.7
Aug31° / 22°6110.7013.44.3
Sep28° / 20°11412.1012.25.7
Oct24° / 14°1029.6011.17.1
Nov18° / 969.80.210.15.8
Dec14° / 688.30.29.54.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15941
25842
35842
45743
55545
65545
75545
85446
95446
105347
115347
125347
135347
145347
155347
165347
175347
185446
195545
205545
215644
225644
235743
245743
255842
265941
275941
285941
295941
305941

Chance of precipitation in September

Any precipitation

Sari gets around 114 mm of rain over 12.1 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 40% and peaks near 43% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
139
240
340
441
542
642
742
843
943
1043
1142
1242
1342
1441
1541
1640
1739
1839
1938
2038
2137
2237
2337
2437
2537
2637
2737
2837
2938
3038

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 66% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1021337453
2021337443
3021437443
4021437433
5021538432
6021538422
7021639412
8031739402
9031740381
10131840361
11141941351
12142041331
13152141311
14152242291
15162342280
16172442260
17182542240
18192742220
191102842200
202112941180
212123041160
222133040140
233143139130
243163238110
254173337100
26418333690
27519333580
28620343370
29721343260
30822343150

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over September. Sunrise moves from 5:33 AM to 5:57 AM, and sunset from 6:22 PM to 5:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:336:22
212.85:346:21
312.75:356:19
412.75:356:18
512.75:366:16
612.65:376:14
712.65:386:13
812.55:396:11
912.55:396:10
1012.55:406:08
1112.45:416:07
1212.45:426:05
1312.35:436:04
1412.35:446:02
1512.35:446:01
1612.25:455:59
1712.25:465:57
1812.15:475:56
1912.15:485:54
2012.15:495:53
2112.05:495:51
2212.05:505:50
2312.05:515:48
2411.95:525:46
2511.95:535:45
2611.85:545:43
2711.85:545:42
2811.85:555:40
2911.75:565:39
3011.75:575:37

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.36 kWh/m².

For context, solar energy here swings from a low near 2.32 kWh/m² to a high of 5.94 kWh/m² in June across the year — September's 4.36 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
15.0Bright
24.9Bright
34.9Bright
44.8Bright
54.8Bright
64.7Bright
74.7Bright
84.6Bright
94.6Bright
104.5Bright
114.5Bright
124.5Bright
134.4Bright
144.4Bright
154.3Bright
164.3Bright
174.3Bright
184.2Bright
194.2Bright
204.2Bright
214.2Bright
224.1Bright
234.1Bright
244.1Bright
254.1Bright
264.0Bright
274.0Bright
284.0Moderate
294.0Moderate
303.9Moderate
Planning a trip in September

Is September a good time to visit Sari?

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

5.7
Sightseeing
6th-best month of the year
6.6
Beach & pool
4th-best month of the year

September is a reasonable time to visit Sari for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Sari in September

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

In September, Sari sees daytime highs around 28°C and nights near 20°C. Pack light clothes. Worth having: rain gear. About 12 days see rain.

light clothesrain gear

Sea temperature near Sari in September

The nearest coast averages about 27°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 35 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 18 to Nov 11 — about 5.9 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb11Bracing
Mar12Bracing
Apr15Bracing
May20Cool
Jun25Warm
Jul27Warm
Aug28Tropical
Sep27Warm
Oct24Refreshing
Nov19Cool
Dec16Cool

UV index in Sari in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sari peaks around July 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 12 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 18UV 9Jan 12UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr7High
May8Very high
Jun8Very high
Jul9Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec3Moderate

Air quality in Sari in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Sari is worst in March — around 42 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (July, 24 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Sari's WHO annual average of 36.9 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorMar 1642 µg/m³Jul 1725 µg/m³
PM2.5 (µg/m³)Level
Jan39Poor
Feb41Poor
Mar42Poor
Apr41Poor
May36Poor
Jun31Moderate
Jul24Moderate
Aug31Moderate
Sep41Poor
Oct41Poor
Nov39Poor
Dec38Poor
Location & terrain

Where is Sari?

Sari sits at 36.6°N, 53.1°E, 43 m above sea level, in Iran. The nearest listed city is Jūybār, 16 km away.

Topography around Sari

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

Within 3 km, the terrain around Sari has only modest variations in elevation — a maximum elevation change of 66 m around an average of 37 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 614 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,003 m.

The land around Sari is covered by artificial surfaces (80%) within 3 km, trees (43%) and cropland (34%) within 16 km, and water (33%) and trees (32%) within 80 km.

3 km
66 m
16 km
614 m
80 km
4,003 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Jūybār 16 km · Qā’em Shahr 21 km · Nekā 23 km · Bābol 34 km · Amīr Kolā 35 km · Bābolsar 40 km · Zīr Āb 43 km · Behshahr 46 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 Sari (36.5633°, 53.0601°, elevation 43 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).