September is one of the warmer months of the year in Ambala, with average highs near 34.5°C and lows around 19.7°C (mean 27.1°C). It is a relatively wet time of year, averaging 145 mm of rainfall and 69% relative humidity across the period.
September is one of the warmer months of the year in Ambala. Across 45 years of records, the warmest September in Ambala was 1987 — when the month averaged 30.9°C — while the coldest was 1994 at 23.8°C. Typical September days reach 34.5°C with nights near 19.7°C. The long-term trend is cooling, about 0.3°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.3°C | 26.9°C | 27.2°C | 26.5°C | 26.7°C | -1.6°C |
| Avg High | 36.7°C | 34.5°C | 35.0°C | 33.2°C | 32.7°C | -4°C |
| Avg Low | 19.8°C | 19.3°C | 19.4°C | 19.7°C | 20.8°C | +1°C |
| Avg Rain | 87 mm | 138 mm | 130 mm | 191 mm | 195 mm | +108 mm |
September temperatures in Ambala have fallen by about 0.8°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 14.9°C (1994) to a record high of 40.2°C (1987).
Rainfall in September is a relatively wet time of year, averaging 145 mm, with a wettest year of 354 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.9°C per decade while lows rose 0.3°C per decade, narrowing the gap between day and night.
A good time to visit Ambala
September is a good time to visit Ambala, with days averaging 34.5°C and nights around 19.7°C (mean 27.1°C, warmer than Ambala's yearly average) and higher rainfall. March and November are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 31.8°C | 21.8°C | 26.8°C | 254 mm | 86% | 1.9 m/s | 5.2 |
| 2024 | 33.0°C | 21.5°C | 27.2°C | 223 mm | 84% | 1.3 m/s | 5 |
| 2023 | 32.8°C | 20.4°C | 26.6°C | 95 mm | 82% | 1.4 m/s | 5.5 |
| 2022 | 32.1°C | 20.3°C | 26.2°C | 322 mm | 83% | 1.3 m/s | 5.2 |
| 2021 | 32.2°C | 22.0°C | 27.1°C | 245 mm | 83% | 1.2 m/s | 4.7 |
| 2020 | 34.3°C | 18.7°C | 26.5°C | 29 mm | 72% | 1.5 m/s | 5.9 |
| 2019 | 33.1°C | 20.7°C | 26.9°C | 177 mm | 80% | 1.2 m/s | 5.1 |
| 2018 | 32.5°C | 19.3°C | 25.9°C | 307 mm | 82% | 1.5 m/s | 4.9 |
| 2017 | 33.9°C | 19.6°C | 26.7°C | 181 mm | 74% | 1.5 m/s | 5.6 |
| 2016 | 34.5°C | 21.5°C | 28.0°C | 59 mm | 66% | 1.4 m/s | 5.7 |
| 2015 | 35.2°C | 18.6°C | 26.9°C | 72 mm | 62% | 1.6 m/s | 5.8 |
| 2014 | 33.7°C | 20.5°C | 27.1°C | 208 mm | 74% | 1.7 m/s | 5.3 |
| 2013 | 31.8°C | 20.7°C | 26.3°C | 88 mm | 76% | 1.3 m/s | 5.5 |
| 2012 | 33.2°C | 18.8°C | 26.0°C | 182 mm | 78% | 1.6 m/s | 5.3 |
| 2011 | 31.5°C | 19.6°C | 25.6°C | 278 mm | 83% | 1.4 m/s | 5.2 |
| 2010 🌧️ | 32.1°C | 18.1°C | 25.1°C | 354 mm | 83% | 1.4 m/s | 4.9 |
| 2009 | 34.5°C | 20.9°C | 27.7°C | 186 mm | 70% | 1.3 m/s | 5.4 |
| 2008 | 32.6°C | 18.3°C | 25.4°C | 249 mm | 78% | 1.4 m/s | 5.7 |
| 2007 | 34.2°C | 19.5°C | 26.9°C | 73 mm | 67% | 1.1 m/s | 5.4 |
| 2006 | 35.4°C | 19.6°C | 27.5°C | 69 mm | 65% | 1.6 m/s | 5.7 |
| 2005 | 37.9°C | 20.1°C | 29.0°C | 218 mm | 70% | 1.3 m/s | 4.9 |
| 2004 | 35.3°C | 19.5°C | 27.4°C | 23 mm | 60% | 1.4 m/s | 5.8 |
| 2003 | 32.2°C | 19.0°C | 25.6°C | 154 mm | 75% | 1.2 m/s | 5.3 |
| 2002 | 34.2°C | 18.8°C | 26.5°C | 191 mm | 67% | 1.5 m/s | 5.4 |
| 2001 | 36.4°C | 19.1°C | 27.8°C | 45 mm | 54% | 1.4 m/s | 6.2 |
| 2000 | 37.3°C | 18.7°C | 28.0°C | 88 mm | 54% | 1.5 m/s | 5.9 |
| 1999 | 38.9°C | 21.7°C | 30.3°C | 108 mm | 57% | 1.4 m/s | 5.2 |
| 1998 | 34.4°C | 21.4°C | 27.9°C | 128 mm | 72% | 1.2 m/s | 4.6 |
| 1997 | 35.1°C | 19.0°C | 27.0°C | 45 mm | 64% | 1.3 m/s | 5.6 |
| 1996 | 33.0°C | 19.6°C | 26.3°C | 173 mm | 75% | 1.4 m/s | 5.2 |
| 1995 | 33.9°C | 20.1°C | 27.0°C | 138 mm | 74% | 1.4 m/s | 5.5 |
| 1994 ❄️ | 32.7°C | 14.9°C | 23.8°C | 60 mm | 74% | 1.6 m/s | 5.8 |
| 1993 | 34.3°C | 19.7°C | 27.0°C | 208 mm | 71% | 1.2 m/s | 5.2 |
| 1992 | 34.2°C | 18.8°C | 26.5°C | 105 mm | 69% | 1.5 m/s | 5.6 |
| 1991 | 33.2°C | 18.1°C | 25.6°C | 131 mm | 67% | 1.4 m/s | 5.6 |
| 1990 | 35.3°C | 19.6°C | 27.4°C | 284 mm | 77% | 1.4 m/s | 4.9 |
| 1989 | 36.3°C | 20.4°C | 28.4°C | 92 mm | 57% | 1.3 m/s | 5.7 |
| 1988 | 36.7°C | 19.7°C | 28.2°C | 242 mm | 68% | 1.8 m/s | 5 |
| 1987 🔥 | 40.2°C | 21.6°C | 30.9°C | 12 mm | 36% | 1.7 m/s | 5.9 |
| 1986 | 38.2°C | 19.8°C | 29.0°C | 57 mm | 43% | 1.7 m/s | 5.8 |
| 1985 | 34.9°C | 19.0°C | 26.9°C | 82 mm | 65% | 1.3 m/s | 5.6 |
| 1984 | 33.1°C | 17.6°C | 25.3°C | 114 mm | 73% | 1.5 m/s | 5.7 |
| 1983 | 36.5°C | 20.8°C | 28.7°C | 75 mm | 61% | 1.4 m/s | — |
| 1982 | 38.5°C | 19.1°C | 28.8°C | 6 mm | 38% | 1.7 m/s | — |
| 1981 | 35.6°C | 20.5°C | 28.1°C | 98 mm | 60% | 1.5 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 34.5°C with lows near 19.7°C (mean 27.1°C), based on 45 years of NASA POWER data.
September averages 145 mm of rainfall in Ambala, a relatively wet time of year. The wettest on record was 354 mm in 2010.
The hottest September reached 40.2°C in 1987. The coldest dipped to 14.9°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have fallen by about 0.8°C. Daytime highs moved from 35.7°C to 32.4°C and overnight lows from 19.4°C to 21.2°C over the same span.
September is one of the warmer months of the year in Ambala and a relatively wet time of year, so plan for around 34.5°C daytime highs and 19.7°C at night.
Not quite — September is the 7th coolest month in Ambala, averaging 27.1°C.
For September in Ambala, pack light, breathable clothing and sun protection, with typical highs of 34.5°C and lows of 19.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 69% — moderately humid.
Average wind speed in September is 1.4 m/s. The windiest September on record averaged 1.9 m/s (2025).
The wettest September on record was 2010 with 354 mm. On average, September sees 145 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 Ambala 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.
