India Kochi Weather in September — Climate Guide
September in Kochi is moderate
Kochi Weather in September — Quick Answer
As of 2026- Avg temp
- 29° / 24°
- Rainfall
- 290mm · 16 days
- Crowds
- Quiet
As of 2026, Kochi in September averages a high of 29°C and low of 24°C with 290mm of rain over about 16 days. Monsoon winding down — around 29°C/24°C, still humid with frequent but easing showers. Light quick-dry clothes, umbrella, sunhat for sunnier breaks, high SPF, sandals for wet streets.
September is moderate for Kochi.
September sees the southwest monsoon tapering, with rainfall down to around 290mm and more frequent sunny breaks, especially late in the month. Highs sit near 29°C with still-high humidity.
Depending on the year, Onam can fall in early September, carrying the festival's feasts, flower carpets and boat races into the month.
Travel score
Kochi September Weather Stats
Avg High
29°C
Avg Low
24°C
Rainy Days
16
290mm total
Sunshine
6h
Daily avg
Humidity
83%
humid
UV Index
10
Very high
Wind
12 km/h
Gusts 26
Sea Temp
28°C
warm
Crowds
Quiet
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
18 μg/m³
PM10
36 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
34°C
Nighttime
26°C
Humidity and wind affect how the actual temperature feels.
Wind
12 km/h
Max gust 26 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- Monsoon easing, more sunny breaks
- Lush green landscapes
- Off-peak prices continue
- Possible late Onam festivities
Cons
- Still humid with frequent showers
- Not yet reliably dry
- Boat plans can still be disrupted
- Variable conditions
September Events & Festivals
- Southwest monsoon tapering off
- Onam may fall in early September (varies by year)
- Improving conditions toward month's end
- Still off-peak rates
Kochi in September — Full Picture
September sees the southwest monsoon tapering, with rainfall down to around 290mm and more frequent sunny breaks, especially late in the month. Highs sit near 29°C with still-high humidity.
Depending on the year, Onam can fall in early September, carrying the festival's feasts, flower carpets and boat races into the month.
Conditions improve steadily toward the dry season, making late September a transitional window — greener than the dry months, cheaper, and less wet than mid-monsoon, but not yet reliably sunny.
It suits flexible travelers chasing value and lush scenery who can work around lingering showers. For guaranteed dry sightseeing, wait for the December-February peak.
What to Wear & What to Pack
Monsoon winding down — around 29°C/24°C, still humid with frequent but easing showers. Light quick-dry clothes, umbrella, sunhat for sunnier breaks, high SPF, sandals for wet streets.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
32.7°C
25.7°C
7/mo
Summer (Jun·Jul·Aug)
28.3°C
24°C
20.7/mo
Autumn (Sep·Oct·Nov)
Current29.7°C
24°C
13.3/mo
Winter (Dec·Jan·Feb)
31.3°C
23.3°C
2.3/mo
Kochi Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 31° | 23° | 2d·20mm | 9h | 67% | 10 | Very busy | Peak |
| February (Best) | 32° | 24° | 2d·25mm | 9h | 68% | 11 | Very busy | Peak |
| 33° | 25° | 3d·40mm | 9h | 71% | 12 | Busy | Shoulder | |
| 33° | 26° | 7d·110mm | 8h | 74% | 12 | Moderate | Shoulder | |
| 32° | 26° | 11d·215mm | 7h | 77% | 11 | Quiet | Low season | |
| 29° | 24° | 22d·650mm | 4h | 86% | 9 | Quiet | Low season | |
| 28° | 24° | 21d·600mm | 4h | 87% | 9 | Quiet | Low season | |
| 28° | 24° | 19d·380mm | 5h | 85% | 9 | Quiet | Low season | |
| 29° | 24° | 16d·290mm | 6h | 83% | 10 | Quiet | Low season | |
| 30° | 24° | 15d·340mm | 6h | 81% | 10 | Moderate | Shoulder | |
| 30° | 24° | 9d·170mm | 7h | 76% | 10 | Busy | Shoulder | |
| December (Best) | 31° | 23° | 3d·35mm | 8h | 70% | 10 | Very busy | Peak |
View Other Months
Kochi September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Kochi?
Kochi in September is moderate. Tourist crowds are quiet and flight/hotel prices are low season.
What's the average temperature in Kochi in September?
Kochi September averages a high of 29°C and a low of 24°C.
Does it rain much in Kochi in September?
Kochi September averages 290mm of rainfall over about 16 rainy days.
What should I wear in Kochi in September?
Monsoon winding down — around 29°C/24°C, still humid with frequent but easing showers. Light quick-dry clothes, umbrella, sunhat for sunnier breaks, high SPF, sandals for wet streets.
What time are sunrise and sunset in Kochi in September?
Kochi September sunrise is 06:10 and sunset is 18:20, with 12h 10min of daylight.
What's the air quality like in Kochi in September?
Kochi September air quality (AQI) averages 42, rated Good. PM2.5 averages 18μg/m³.
What activities are recommended in Kochi in September?
In September, Kochi is great for Heritage walks between showers, Green-season backwater cruise, Munnar tea hills.
Is September peak season in Kochi?
Kochi September crowds are quiet and prices are low season. You can travel relatively comfortably without long queues.
Best Months to Visit Kochi
View Other Months
Planning a September trip to Kochi?
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Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.