September is one of the warmer months of the year in Mandi, with average highs near 28.4°C and lows around 15.8°C (mean 22.1°C). It is a relatively wet time of year, averaging 143 mm of rainfall and 71% relative humidity across the period.
September is one of the warmer months of the year in Mandi. Across 45 years of records, the warmest September in Mandi was 1999 — when the month averaged 24.5°C — while the coldest was 1997 at 20.1°C. Typical September days reach 28.4°C with nights near 15.8°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 | 22.8°C | 21.9°C | 21.8°C | 21.9°C | 22.5°C | -0.3°C |
| Avg High | 30.3°C | 28.2°C | 28.5°C | 27.4°C | 27.6°C | -2.7°C |
| Avg Low | 15.2°C | 15.6°C | 15.1°C | 16.6°C | 17.4°C | +2.2°C |
| Avg Rain | 96 mm | 137 mm | 132 mm | 186 mm | 172 mm | +76 mm |
September temperatures in Mandi have risen by about 0.5°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 12.8°C (1997) to a record high of 32.8°C (1987).
Rainfall in September is a relatively wet time of year, averaging 143 mm, with a wettest year of 338 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.6°C per decade while lows rose 0.5°C per decade, narrowing the gap between day and night.
One of the best times to visit Mandi
September is one of the best times to visit Mandi. Expect days averaging 28.4°C and nights around 15.8°C (mean 22.1°C) — warmer than Mandi's yearly average — with higher rainfall (143 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 27.9°C | 18.7°C | 23.3°C | 310 mm | 88% | 1.6 m/s | 4.6 |
| 2024 | 28.4°C | 17.4°C | 22.9°C | 190 mm | 85% | 1.3 m/s | 4.9 |
| 2023 | 27.7°C | 17.3°C | 22.5°C | 70 mm | 81% | 1.3 m/s | 5.1 |
| 2022 | 26.7°C | 17.1°C | 21.9°C | 200 mm | 86% | 1.3 m/s | 4.8 |
| 2021 | 26.9°C | 18.1°C | 22.5°C | 238 mm | 86% | 1.3 m/s | 4.4 |
| 2020 | 28.1°C | 15.9°C | 22.0°C | 23 mm | 75% | 1.4 m/s | 5.7 |
| 2019 | 27.6°C | 16.8°C | 22.2°C | 110 mm | 82% | 1.4 m/s | 4.8 |
| 2018 | 26.8°C | 16.0°C | 21.4°C | 304 mm | 81% | 1.3 m/s | 4.7 |
| 2017 | 28.3°C | 17.7°C | 23.0°C | 116 mm | 74% | 1.5 m/s | 5.5 |
| 2016 | 27.5°C | 16.8°C | 22.1°C | 51 mm | 77% | 1.4 m/s | 5.4 |
| 2015 | 28.8°C | 15.3°C | 22.0°C | 89 mm | 66% | 1.5 m/s | 5.7 |
| 2014 | 26.6°C | 16.8°C | 21.7°C | 336 mm | 83% | 1.3 m/s | 5 |
| 2013 | 26.5°C | 17.0°C | 21.8°C | 78 mm | 80% | 1.3 m/s | 5.4 |
| 2012 | 27.5°C | 17.0°C | 22.2°C | 196 mm | 79% | 1.5 m/s | 5.1 |
| 2011 | 27.1°C | 16.5°C | 21.8°C | 247 mm | 81% | 1.2 m/s | 5 |
| 2010 🌧️ | 26.9°C | 15.6°C | 21.2°C | 338 mm | 82% | 1.3 m/s | 4.9 |
| 2009 | 28.2°C | 16.0°C | 22.1°C | 162 mm | 68% | 1.3 m/s | 5.3 |
| 2008 | 27.2°C | 13.9°C | 20.5°C | 233 mm | 77% | 1.3 m/s | 5.6 |
| 2007 | 27.9°C | 15.5°C | 21.7°C | 69 mm | 71% | 1.3 m/s | 5.1 |
| 2006 | 27.6°C | 14.6°C | 21.1°C | 144 mm | 76% | 1.4 m/s | 5.3 |
| 2005 | 30.9°C | 15.5°C | 23.2°C | 209 mm | 71% | 1.2 m/s | 4.6 |
| 2004 | 28.8°C | 16.3°C | 22.5°C | 20 mm | 61% | 1.4 m/s | 5.6 |
| 2003 | 27.1°C | 14.6°C | 20.9°C | 151 mm | 75% | 1.2 m/s | 5 |
| 2002 | 27.6°C | 14.6°C | 21.1°C | 197 mm | 67% | 1.4 m/s | 5.3 |
| 2001 | 30.3°C | 15.0°C | 22.6°C | 44 mm | 56% | 1.4 m/s | 6 |
| 2000 | 29.8°C | 14.6°C | 22.2°C | 95 mm | 58% | 1.4 m/s | 5.5 |
| 1999 🔥 | 31.2°C | 17.7°C | 24.5°C | 110 mm | 58% | 1.4 m/s | 5 |
| 1998 | 29.3°C | 17.7°C | 23.5°C | 98 mm | 67% | 1.2 m/s | 4.4 |
| 1997 ❄️ | 27.5°C | 12.8°C | 20.1°C | 33 mm | 69% | 1.4 m/s | 5 |
| 1996 | 26.7°C | 16.0°C | 21.3°C | 155 mm | 75% | 1.3 m/s | 4.8 |
| 1995 | 27.8°C | 15.7°C | 21.8°C | 133 mm | 75% | 1.4 m/s | 5.2 |
| 1994 | 27.2°C | 14.3°C | 20.8°C | 80 mm | 70% | 1.3 m/s | 5.1 |
| 1993 | 27.5°C | 15.8°C | 21.6°C | 203 mm | 70% | 1.3 m/s | 4.9 |
| 1992 | 28.2°C | 14.9°C | 21.5°C | 134 mm | 72% | 1.4 m/s | 5.1 |
| 1991 | 28.4°C | 14.6°C | 21.5°C | 143 mm | 68% | 1.4 m/s | 5.2 |
| 1990 | 28.5°C | 16.2°C | 22.3°C | 284 mm | 79% | 1.3 m/s | 4.4 |
| 1989 | 30.5°C | 15.8°C | 23.2°C | 75 mm | 55% | 1.5 m/s | 5.3 |
| 1988 | 32.0°C | 15.6°C | 23.8°C | 286 mm | 63% | 1.6 m/s | 4.6 |
| 1987 | 32.8°C | 14.9°C | 23.9°C | 5 mm | 43% | 1.7 m/s | 5.5 |
| 1986 | 31.6°C | 14.9°C | 23.3°C | 60 mm | 48% | 1.7 m/s | 5.1 |
| 1985 | 27.7°C | 15.4°C | 21.6°C | 45 mm | 68% | 1.3 m/s | 5.1 |
| 1984 | 26.9°C | 13.6°C | 20.3°C | 143 mm | 75% | 1.3 m/s | 5.4 |
| 1983 | 30.5°C | 17.7°C | 24.1°C | 117 mm | 63% | 1.5 m/s | — |
| 1982 | 32.4°C | 14.1°C | 23.2°C | 9 mm | 42% | 1.7 m/s | — |
| 1981 | 28.0°C | 14.8°C | 21.4°C | 126 mm | 68% | 1.4 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 28.4°C with lows near 15.8°C (mean 22.1°C), based on 45 years of NASA POWER data.
September averages 143 mm of rainfall in Mandi, a relatively wet time of year. The wettest on record was 338 mm in 2010.
The hottest September reached 32.8°C in 1987. The coldest dipped to 12.8°C in 1997.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.5°C. Daytime highs moved from 29.1°C to 27.5°C and overnight lows from 15.1°C to 17.7°C over the same span.
September is one of the warmer months of the year in Mandi and a relatively wet time of year, so plan for around 28.4°C daytime highs and 15.8°C at night.
Not quite — September is the 8th coolest month in Mandi, averaging 22.1°C.
For September in Mandi, pack light layers you can adjust through the day, with typical highs of 28.4°C and lows of 15.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 71% — moderately humid.
Average wind speed in September is 1.4 m/s. The windiest September on record averaged 1.7 m/s (1982).
The wettest September on record was 2010 with 338 mm. On average, September sees 143 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 Mandi 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.
