September is one of the warmer months of the year in Champawat, with average highs near 27°C and lows around 15.2°C (mean 21.1°C). It is a relatively wet time of year, averaging 147 mm of rainfall and 82% relative humidity across the period.
September is one of the warmer months of the year in Champawat. Across 45 years of records, the warmest September in Champawat was 1989 — when the month averaged 22.8°C — while the coldest was 1982 at 19.1°C. Typical September days reach 27°C with nights near 15.2°C. The long-term trend is warming, about 0.2°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.1°C | 20.9°C | 20.5°C | 21.2°C | 22.0°C | +0.9°C |
| Avg High | 27.6°C | 27.2°C | 26.4°C | 26.6°C | 27.4°C | -0.2°C |
| Avg Low | 14.6°C | 14.7°C | 14.6°C | 15.8°C | 16.6°C | +2°C |
| Avg Rain | 112 mm | 95 mm | 175 mm | 185 mm | 175 mm | +63 mm |
September temperatures in Champawat have risen by about 1.7°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 11.7°C (1982) to a record high of 30.4°C (1987).
Rainfall in September is a relatively wet time of year, averaging 147 mm, with a wettest year of 501 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.1°C per decade while lows rose 0.6°C per decade, narrowing the gap between day and night.
One of the best times to visit Champawat
September is one of the best times to visit Champawat. Expect days averaging 27°C and nights around 15.2°C (mean 21.1°C) — warmer than Champawat's yearly average — with higher rainfall (147 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 27.1°C | 17.2°C | 22.1°C | 183 mm | 89% | 1.4 m/s | 4.4 |
| 2024 | 27.2°C | 17.6°C | 22.4°C | 299 mm | 88% | 1.4 m/s | 4.4 |
| 2023 | 27.8°C | 16.7°C | 22.2°C | 164 mm | 86% | 1.2 m/s | 4.9 |
| 2022 | 27.7°C | 16.0°C | 21.9°C | 297 mm | 86% | 1.3 m/s | 4.3 |
| 2021 | 26.7°C | 16.5°C | 21.6°C | 80 mm | 86% | 1.3 m/s | 4.8 |
| 2020 | 27.7°C | 15.8°C | 21.7°C | 25 mm | 81% | 1.4 m/s | 5.2 |
| 2019 | 26.8°C | 15.4°C | 21.1°C | 155 mm | 89% | 1.4 m/s | 4.3 |
| 2018 | 26.0°C | 16.5°C | 21.2°C | 137 mm | 86% | 1.3 m/s | 4.9 |
| 2017 | 27.5°C | 17.0°C | 22.2°C | 205 mm | 85% | 1.4 m/s | 5 |
| 2016 | 27.0°C | 16.5°C | 21.7°C | 98 mm | 84% | 1.4 m/s | 5.5 |
| 2015 | 28.0°C | 15.7°C | 21.9°C | 51 mm | 76% | 1.4 m/s | 5.6 |
| 2014 | 27.2°C | 14.8°C | 21.0°C | 96 mm | 83% | 1.4 m/s | 5.2 |
| 2013 | 26.0°C | 16.4°C | 21.2°C | 91 mm | 86% | 1.3 m/s | 5.1 |
| 2012 | 26.1°C | 15.7°C | 20.9°C | 262 mm | 87% | 1.4 m/s | 4.9 |
| 2011 | 26.1°C | 15.3°C | 20.7°C | 255 mm | 85% | 1.3 m/s | 5.1 |
| 2010 🌧️ | 25.2°C | 14.9°C | 20.0°C | 501 mm | 88% | 1.2 m/s | 4.1 |
| 2009 | 26.1°C | 15.8°C | 21.0°C | 216 mm | 85% | 1.2 m/s | 4.6 |
| 2008 | 26.0°C | 14.8°C | 20.4°C | 240 mm | 83% | 1.3 m/s | 5.2 |
| 2007 | 26.1°C | 15.3°C | 20.7°C | 190 mm | 85% | 1.3 m/s | 4.8 |
| 2006 | 25.8°C | 14.4°C | 20.1°C | 102 mm | 81% | 1.4 m/s | 5.1 |
| 2005 | 26.7°C | 15.4°C | 21.0°C | 345 mm | 85% | 1.2 m/s | 4.6 |
| 2004 | 27.2°C | 15.0°C | 21.1°C | 70 mm | 77% | 1.3 m/s | 5 |
| 2003 | 26.3°C | 14.1°C | 20.2°C | 300 mm | 86% | 1.2 m/s | 4.2 |
| 2002 | 26.4°C | 13.5°C | 20.0°C | 198 mm | 78% | 1.3 m/s | 4.2 |
| 2001 | 27.2°C | 14.6°C | 20.9°C | 32 mm | 71% | 1.3 m/s | 5.4 |
| 2000 | 26.5°C | 12.7°C | 19.6°C | 57 mm | 78% | 1.3 m/s | 4.7 |
| 1999 | 27.4°C | 15.9°C | 21.6°C | 111 mm | 83% | 1.3 m/s | 4.4 |
| 1998 | 27.8°C | 16.3°C | 22.0°C | 76 mm | 83% | 1.3 m/s | 5 |
| 1997 | 27.6°C | 11.8°C | 19.7°C | 30 mm | 75% | 1.4 m/s | 4.9 |
| 1996 | 25.6°C | 14.8°C | 20.2°C | 218 mm | 86% | 1.3 m/s | 4.7 |
| 1995 | 28.1°C | 15.0°C | 21.6°C | 106 mm | 83% | 1.4 m/s | 5.1 |
| 1994 | 26.5°C | 13.3°C | 19.9°C | 27 mm | 79% | 1.4 m/s | 5.5 |
| 1993 | 27.2°C | 15.6°C | 21.4°C | 113 mm | 82% | 1.4 m/s | 4.2 |
| 1992 | 27.7°C | 14.7°C | 21.2°C | 71 mm | 76% | 1.4 m/s | 4.5 |
| 1991 | 27.2°C | 14.5°C | 20.8°C | 58 mm | 78% | 1.4 m/s | 5.2 |
| 1990 | 26.6°C | 15.4°C | 21.0°C | 136 mm | 87% | 1.4 m/s | 4.2 |
| 1989 🔥 | 29.6°C | 15.9°C | 22.8°C | 53 mm | 72% | 1.4 m/s | 4.8 |
| 1988 | 27.1°C | 16.4°C | 21.7°C | 50 mm | 83% | 1.3 m/s | 4.4 |
| 1987 | 30.4°C | 14.7°C | 22.5°C | 46 mm | 63% | 1.5 m/s | 5.3 |
| 1986 | 28.3°C | 14.1°C | 21.2°C | 108 mm | 65% | 1.3 m/s | 5 |
| 1985 | 27.3°C | 14.9°C | 21.1°C | 212 mm | 84% | 1.3 m/s | 4.8 |
| 1984 | 26.0°C | 12.8°C | 19.4°C | 112 mm | 80% | 1.3 m/s | 5 |
| 1983 | 26.1°C | 15.4°C | 20.7°C | 296 mm | 87% | 1.3 m/s | — |
| 1982 ❄️ | 26.5°C | 11.7°C | 19.1°C | 60 mm | 71% | 1.3 m/s | — |
| 1981 | 27.1°C | 15.4°C | 21.3°C | 76 mm | 79% | 1.3 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 27°C with lows near 15.2°C (mean 21.1°C), based on 45 years of NASA POWER data.
September averages 147 mm of rainfall in Champawat, a relatively wet time of year. The wettest on record was 501 mm in 2010.
The hottest September reached 30.4°C in 1987. The coldest dipped to 11.7°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.7°C. Daytime highs moved from 26.6°C to 27.3°C and overnight lows from 14°C to 16.8°C over the same span.
September is one of the warmer months of the year in Champawat and a relatively wet time of year, so plan for around 27°C daytime highs and 15.2°C at night.
Not quite — September is the 7th coolest month in Champawat, averaging 21.1°C.
For September in Champawat, pack light layers you can adjust through the day, with typical highs of 27°C and lows of 15.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 82% — quite humid.
Average wind speed in September is 1.3 m/s. The windiest September on record averaged 1.5 m/s (1987).
The wettest September on record was 2010 with 501 mm. On average, September sees 147 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 Champawat 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.
