Kochi weather in September

In September, Kochi sees average daytime highs of 27°C and overnight lows near 25°C, with 263 mm of rain across 25.2 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 11% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Kochi's 9th-clearest and 4th-windiest month. For the whole year in context, see Kochi's year-round climate.

Daytime high
27°
10th warmest
Overnight low
25°
5th coldest
Rainfall
263 mm
25.2 wet days
Daylight
12 h 06 min
6:18 AM – 6:21 PM
Cloud cover
79%
9th clearest
Wind
12 km/h
4th windiest
Solar energy
4.74 kWh/m²
Travel score
4.0
out of 10

Kochi is city in Kerala, India.

Air quality
High
PM2.5 32 µg/m³ · 2019
Density
6,677/km²
people per km²

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical September day in Kochi reaches about 27°C in the afternoon and slips back to 25°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°C. Set against its neighbours, September runs on par with August and on par with October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12725
22725
32725
42725
52725
62725
72725
82725
92725
102725
112725
122725
132725
142725
152725
162725
172725
182725
192725
202725
212725
222725
232725
242725
252725
262725
272725
282725
292725
302725

How September really feels in Kochi

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Kochi weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°185.311.56.9
Feb29° / 25°237.611.76.3
Mar29° / 26°6115.411.95.0
Apr30° / 26°16725.312.23.4
May29° / 26°3242812.43.2
Jun27° / 25°56329.712.63.3
Jul27° / 25°50930.112.53.4
Aug26° / 25°37529.212.33.5
Sep27° / 25°26325.212.14.0
Oct27° / 25°29026.311.83.9
Nov28° / 25°16419.411.54.7
Dec28° / 25°548.511.46.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 9% of September, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11486
21585
31783
41783
51783
61783
71783
81882
91981
102080
112080
122080
132179
142179
152179
162179
172179
182179
192278
202278
212278
222278
232278
242278
252278
262278
272278
282377
292476
302476

Chance of precipitation in September

Any precipitation

Kochi gets around 263 mm of rain over 25.2 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 85% and peaks near 88% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
188
288
387
487
587
686
786
886
986
1086
1186
1286
1386
1486
1585
1685
1785
1884
1984
2084
2183
2283
2383
2483
2582
2682
2782
2882
2982
3082

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
1928
2928
3928
4928
5928
6928
7928
8937
9937
10937
11937
12937
13937
14937
15937
16928
17928
18928
19919
20919
21919
22919
23919
24919
25919
26919
27919
28919
29919
30919

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312calm
1412calm
1512calm
1612calm
1712calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over September. Sunrise moves from 6:19 AM to 6:17 AM, and sunset from 6:30 PM to 6:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:196:30
212.26:196:30
312.26:196:29
412.26:196:29
512.26:196:28
612.16:196:27
712.16:186:27
812.16:186:26
912.16:186:25
1012.16:186:25
1112.16:186:24
1212.16:186:24
1312.16:186:23
1412.16:186:22
1512.16:186:22
1612.16:186:21
1712.06:186:20
1812.06:176:20
1912.06:176:19
2012.06:176:18
2112.06:176:18
2212.06:176:17
2312.06:176:16
2412.06:176:16
2512.06:176:15
2612.06:176:14
2712.06:176:14
2811.96:176:13
2911.96:176:13
3011.96:176:12

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.74 kWh/m².

For context, solar energy here swings from a low near 3.88 kWh/m² to a high of 6.3 kWh/m² in March across the year — September's 4.74 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
Planning a trip in September

Hazard calendar for Kochi

In seasonPeak

In September, Kochi sits inside its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.

Kochi sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Kochi's monsoon runs May–October, when most of the year's rain falls.

Cyclone
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Kochi?

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

4.0
Sightseeing
6th-best month of the year
4.0
Beach & pool
9th-best month of the year

September is a reasonable time to visit Kochi for sightseeing.

What to pack for Kochi in September

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

In September, Kochi sees daytime highs around 27°C and nights near 25°C. Pack rain gear. Worth having: light clothes and sun protection. About 25 days see rain.

rain gearlight clothessun protection

Sea temperature near Kochi in September

The nearest coast averages about 28°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 16 km away) is warmest in April at about 30°C and coldest in August near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun28Tropical
Jul27Warm
Aug27Warm
Sep28Warm
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Kochi in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kochi peaks around August 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 8 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highExtremeVery highAug 17UV 13Dec 23UV 8
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar11Extreme
Apr12Extreme
May9Very high
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct11Extreme
Nov10Very high
Dec8Very high

Air quality in Kochi 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 Kochi is worst in January — around 49 µg/m³ PM2.5 (poor), about 3.4× the cleanest month (July, 15 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Kochi's WHO annual average of 32 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorJan 1348 µg/m³Jul 2015 µg/m³
PM2.5 (µg/m³)Level
Jan49Poor
Feb46Poor
Mar39Poor
Apr34Moderate
May28Moderate
Jun17Moderate
Jul15Moderate
Aug15Moderate
Sep19Moderate
Oct31Moderate
Nov43Poor
Dec48Poor
Location & terrain

Where is Kochi?

Kochi sits at 9.9°N, 76.3°E, 9 m above sea level, in India. The nearest listed city is Alappuzha, 51 km away.

MaduraiMysoreBengaluruMannar

Topography around Kochi

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

Within 3 km, the terrain around Kochi has only modest variations in elevation — a maximum elevation change of 19 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 70 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,718 m.

The land around Kochi is covered by artificial surfaces (44%) and water (34%) within 3 km, water (58%) and trees (23%) within 16 km, and trees (58%) and water (35%) within 80 km.

3 km
19 m
16 km
70 m
80 km
1,718 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
September weather nearby: Alappuzha 51 km · Thaikattussery 58 km · Munnar 89 km · Irimbiliyam 104 km · Madurai 204 km · Mysore 265 km · Bengaluru 367 km · Mannar 411 km

India travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / D / M
230 V · 50 Hz
Prices
≈ 23% of US
price level, 2025
GDP per capita
$2,702
2025
Happiness
4.5 / 10
World Happiness, 2025
Safe drinking water
76%
of population, 2024
Homicide rate
2.8
per 100k, 2022
Road deaths
15.6
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 484
Religion
Hindu 80%Muslim 14%Christian 2%other and unspecified 2%

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 Kochi (9.9399°, 76.2602°, elevation 9 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).