September is close to Koppal's year-round average, with average highs near 33.5°C and lows around 19.7°C (mean 26.6°C). It is a relatively wet time of year, averaging 113 mm of rainfall and 77% relative humidity across the period.
September is close to Koppal's year-round average. Across 45 years of records, the warmest September in Koppal was 1999 — when the month averaged 28.4°C — while the coldest were 1996 and 2022 at 25°C. Typical September days reach 33.5°C with nights near 19.7°C. The long-term September temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.5°C | 26.8°C | 26.9°C | 26.6°C | 26.1°C | -0.4°C |
| Avg High | 33.8°C | 34.0°C | 33.6°C | 33.4°C | 32.2°C | -1.6°C |
| Avg Low | 19.2°C | 19.7°C | 20.1°C | 19.8°C | 19.9°C | +0.7°C |
| Avg Rain | 128 mm | 85 mm | 117 mm | 104 mm | 145 mm | +17 mm |
September temperatures in Koppal have fallen by about 0.7°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 17.6°C (1994) to a record high of 36.8°C (1985).
Rainfall in September is a relatively wet time of year, averaging 113 mm, with a wettest year of 248 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.4°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A quieter season to visit Koppal
If your dates are flexible, the more temperate months of December and November tend to be the most comfortable for visiting Koppal. That said, September — with days averaging 33.5°C and nights around 19.7°C (mean 26.6°C) and higher rainfall (113 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 31.0°C | 19.9°C | 25.5°C | 140 mm | 84% | 3.2 m/s | 4.3 |
| 2024 | 32.7°C | 20.2°C | 26.5°C | 111 mm | 80% | 3.5 m/s | 4.9 |
| 2023 | 33.4°C | 20.6°C | 27.0°C | 91 mm | 78% | 3.7 m/s | 4.8 |
| 2022 | 31.3°C | 18.8°C | 25.0°C | 212 mm | 84% | 2.9 m/s | 4.8 |
| 2021 | 33.4°C | 20.0°C | 26.7°C | 81 mm | 79% | 3.7 m/s | 4.6 |
| 2020 | 31.6°C | 19.9°C | 25.8°C | 233 mm | 85% | 3.1 m/s | 4.5 |
| 2019 | 32.4°C | 20.5°C | 26.5°C | 135 mm | 81% | 3.6 m/s | 4.4 |
| 2018 | 36.3°C | 19.6°C | 27.9°C | 78 mm | 68% | 2.8 m/s | 5.5 |
| 2017 | 33.9°C | 20.6°C | 27.3°C | 165 mm | 79% | 2.3 m/s | 4.9 |
| 2016 | 33.5°C | 19.7°C | 26.6°C | 106 mm | 77% | 3.7 m/s | 4.2 |
| 2015 | 32.6°C | 19.7°C | 26.2°C | 112 mm | 80% | 2.6 m/s | 5.4 |
| 2014 | 32.2°C | 19.9°C | 26.0°C | 67 mm | 80% | 3.4 m/s | 5.1 |
| 2013 | 32.4°C | 19.6°C | 26.0°C | 164 mm | 81% | 3 m/s | 5 |
| 2012 | 35.1°C | 20.2°C | 27.6°C | 85 mm | 71% | 3.7 m/s | 5.3 |
| 2011 | 35.1°C | 19.2°C | 27.2°C | 27 mm | 72% | 4 m/s | 5.3 |
| 2010 | 30.8°C | 19.4°C | 25.1°C | 105 mm | 82% | 3.1 m/s | 5 |
| 2009 | 33.1°C | 20.9°C | 27.0°C | 200 mm | 79% | 2.8 m/s | 4.9 |
| 2008 | 32.7°C | 19.0°C | 25.8°C | 91 mm | 78% | 3.1 m/s | 5.2 |
| 2007 🌧️ | 31.4°C | 19.9°C | 25.7°C | 248 mm | 84% | 3.1 m/s | 4.6 |
| 2006 | 34.6°C | 20.7°C | 27.7°C | 99 mm | 75% | 3.1 m/s | 5.4 |
| 2005 | 30.3°C | 20.6°C | 25.4°C | 106 mm | 84% | 3.2 m/s | 4.7 |
| 2004 | 33.3°C | 19.2°C | 26.2°C | 134 mm | 77% | 2.8 m/s | 5.2 |
| 2003 | 35.7°C | 20.8°C | 28.2°C | 34 mm | 68% | 3.9 m/s | 5.3 |
| 2002 | 35.8°C | 19.7°C | 27.8°C | 41 mm | 66% | 3.4 m/s | 5.8 |
| 2001 | 34.7°C | 20.6°C | 27.7°C | 114 mm | 74% | 2.5 m/s | 5.5 |
| 2000 | 34.0°C | 20.0°C | 27.0°C | 99 mm | 75% | 2.8 m/s | 5.4 |
| 1999 🔥 | 36.7°C | 20.1°C | 28.4°C | 92 mm | 71% | 3.6 m/s | 5.3 |
| 1998 | 31.2°C | 20.2°C | 25.7°C | 153 mm | 83% | 3.1 m/s | 5 |
| 1997 | 34.7°C | 19.8°C | 27.3°C | 51 mm | 70% | 3 m/s | 5.3 |
| 1996 ❄️ | 30.4°C | 19.7°C | 25.0°C | 188 mm | 83% | 2.7 m/s | 5.2 |
| 1995 | 33.5°C | 20.0°C | 26.7°C | 71 mm | 75% | 3.4 m/s | 5.1 |
| 1994 | 34.9°C | 17.6°C | 26.3°C | 35 mm | 70% | 3.8 m/s | 5.6 |
| 1993 | 33.3°C | 19.5°C | 26.4°C | 87 mm | 77% | 3.6 m/s | 5.8 |
| 1992 | 34.7°C | 19.9°C | 27.3°C | 55 mm | 70% | 3.3 m/s | 5.2 |
| 1991 | 34.3°C | 19.9°C | 27.1°C | 89 mm | 73% | 2.6 m/s | 5.1 |
| 1990 | 35.9°C | 20.0°C | 28.0°C | 33 mm | 67% | 3.8 m/s | 5.2 |
| 1989 | 33.7°C | 17.9°C | 25.8°C | 150 mm | 76% | 2.9 m/s | 4.9 |
| 1988 | 31.3°C | 19.8°C | 25.6°C | 179 mm | 84% | 3.2 m/s | 4.9 |
| 1987 | 34.1°C | 19.4°C | 26.8°C | 119 mm | 75% | 2.7 m/s | 5.7 |
| 1986 | 34.3°C | 19.0°C | 26.7°C | 124 mm | 74% | 2.7 m/s | 5.6 |
| 1985 | 36.8°C | 19.1°C | 28.0°C | 31 mm | 67% | 3.3 m/s | 5.1 |
| 1984 | 34.3°C | 19.6°C | 26.9°C | 116 mm | 72% | 3.1 m/s | 5.6 |
| 1983 | 32.7°C | 19.7°C | 26.2°C | 90 mm | 79% | 4 m/s | — |
| 1982 | 35.1°C | 18.4°C | 26.8°C | 118 mm | 72% | 3.4 m/s | — |
| 1981 | 32.2°C | 19.7°C | 25.9°C | 228 mm | 83% | 3 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 33.5°C with lows near 19.7°C (mean 26.6°C), based on 45 years of NASA POWER data.
September averages 113 mm of rainfall in Koppal, a relatively wet time of year. The wettest on record was 248 mm in 2007.
The hottest September reached 36.8°C in 1985. The coldest dipped to 17.6°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have fallen by about 0.7°C. Daytime highs moved from 34.2°C to 32.4°C and overnight lows from 19.3°C to 19.9°C over the same span.
September is close to Koppal's year-round average and a relatively wet time of year, so plan for around 33.5°C daytime highs and 19.7°C at night.
Not quite — September is the 6th coolest month in Koppal, averaging 26.6°C.
For September in Koppal, pack light, breathable clothing and sun protection, with typical highs of 33.5°C and lows of 19.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 77% — quite humid.
Average wind speed in September is 3.2 m/s. The windiest September on record averaged 4 m/s (1983).
The wettest September on record was 2007 with 248 mm. On average, September sees 113 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Koppal behaves each September, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for September specifically, along with year-by-year records and how the month has changed over the decades.
