September is one of the warmer months of the year in Tonk, with average highs near 36.6°C and lows around 20.3°C (mean 28.5°C). It is a relatively wet time of year, averaging 80 mm of rainfall and 70% relative humidity across the period.
September is one of the warmer months of the year in Tonk. Across 45 years of records, the warmest September in Tonk was 1999 — when the month averaged 32.4°C — while the coldest was 1994 at 25°C. Typical September days reach 36.6°C with nights near 20.3°C. The long-term trend is cooling, about 0.4°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.3°C | 28.3°C | 29.9°C | 26.8°C | 27.8°C | -1.5°C |
| Avg High | 38.3°C | 36.5°C | 38.9°C | 34.4°C | 34.1°C | -4.2°C |
| Avg Low | 20.4°C | 20.2°C | 20.8°C | 19.3°C | 21.6°C | +1.2°C |
| Avg Rain | 46 mm | 89 mm | 50 mm | 104 mm | 126 mm | +79 mm |
September temperatures in Tonk have fallen by about 1.1°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 17.1°C (1994) to a record high of 41.8°C (1987).
Rainfall in September is a relatively wet time of year, averaging 80 mm, with a wettest year of 230 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.9°C per decade while lows rose 0.1°C per decade, narrowing the gap between day and night.
A good time to visit Tonk
September is a good time to visit Tonk, with days averaging 36.6°C and nights around 20.3°C (mean 28.5°C, warmer than Tonk's yearly average) and moderate rainfall. November and February are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 32.8°C | 21.0°C | 26.9°C | 143 mm | 85% | 2.1 m/s | 5 |
| 2024 | 33.6°C | 21.1°C | 27.3°C | 189 mm | 87% | 1.6 m/s | 4.7 |
| 2023 | 37.2°C | 21.0°C | 29.1°C | 93 mm | 73% | 2.1 m/s | 5 |
| 2022 | 33.0°C | 21.4°C | 27.2°C | 92 mm | 83% | 2 m/s | 5.2 |
| 2021 | 32.3°C | 23.2°C | 27.7°C | 168 mm | 87% | 2.2 m/s | 4.4 |
| 2020 | 35.6°C | 21.7°C | 28.7°C | 69 mm | 76% | 1.7 m/s | 5.3 |
| 2019 | 33.3°C | 22.0°C | 27.7°C | 152 mm | 87% | 1.6 m/s | 4.7 |
| 2018 🌧️ | 33.3°C | 18.0°C | 25.7°C | 230 mm | 79% | 2.4 m/s | 4.5 |
| 2017 | 37.9°C | 20.2°C | 29.0°C | 40 mm | 65% | 1.9 m/s | 5.3 |
| 2016 | 34.3°C | 20.2°C | 27.2°C | 35 mm | 79% | 1.8 m/s | 6 |
| 2015 | 38.6°C | 18.5°C | 28.5°C | 25 mm | 61% | 2 m/s | 6 |
| 2014 | 34.1°C | 18.3°C | 26.2°C | 89 mm | 78% | 2.3 m/s | 5.6 |
| 2013 | 34.6°C | 20.4°C | 27.5°C | 91 mm | 77% | 1.7 m/s | 5.6 |
| 2012 | 32.8°C | 17.8°C | 25.3°C | 125 mm | 80% | 1.6 m/s | 5.2 |
| 2011 | 32.0°C | 19.7°C | 25.9°C | 158 mm | 84% | 2.2 m/s | 5.1 |
| 2010 | 32.8°C | 17.9°C | 25.3°C | 91 mm | 80% | 1.9 m/s | 4.9 |
| 2009 | 41.5°C | 20.5°C | 31.0°C | 23 mm | 54% | 2.2 m/s | 6.2 |
| 2008 | 38.4°C | 20.6°C | 29.5°C | 84 mm | 69% | 1.9 m/s | 5.6 |
| 2007 | 35.9°C | 20.7°C | 28.3°C | 95 mm | 71% | 1.6 m/s | 5.5 |
| 2006 | 36.6°C | 20.1°C | 28.3°C | 57 mm | 72% | 2.1 m/s | 5.6 |
| 2005 | 40.9°C | 20.3°C | 30.6°C | 102 mm | 66% | 2.2 m/s | 5.2 |
| 2004 | 35.7°C | 20.6°C | 28.2°C | 20 mm | 74% | 1.6 m/s | 5.9 |
| 2003 | 38.1°C | 21.9°C | 30.0°C | 62 mm | 67% | 1.9 m/s | 5.5 |
| 2002 | 40.7°C | 21.8°C | 31.2°C | 29 mm | 44% | 2.2 m/s | 6.1 |
| 2001 | 41.1°C | 20.6°C | 30.8°C | 5 mm | 47% | 1.6 m/s | 6.2 |
| 2000 | 40.3°C | 21.0°C | 30.6°C | 17 mm | 44% | 2.2 m/s | 6 |
| 1999 🔥 | 41.0°C | 23.7°C | 32.4°C | 42 mm | 54% | 2.1 m/s | 5.6 |
| 1998 | 40.5°C | 23.0°C | 31.7°C | 134 mm | 68% | 2 m/s | 5.6 |
| 1997 | 37.4°C | 20.8°C | 29.1°C | 47 mm | 70% | 1.9 m/s | 5.9 |
| 1996 | 35.2°C | 19.2°C | 27.2°C | 113 mm | 74% | 1.8 m/s | 5.5 |
| 1995 | 35.8°C | 18.5°C | 27.1°C | 31 mm | 70% | 1.8 m/s | 5.9 |
| 1994 ❄️ | 32.8°C | 17.1°C | 25.0°C | 83 mm | 75% | 2.2 m/s | 6.1 |
| 1993 | 38.3°C | 21.4°C | 29.8°C | 107 mm | 67% | 2 m/s | 5.8 |
| 1992 | 33.4°C | 17.3°C | 25.4°C | 156 mm | 77% | 2.1 m/s | 5.7 |
| 1991 | 35.9°C | 18.7°C | 27.3°C | 73 mm | 68% | 2.2 m/s | 6.1 |
| 1990 | 34.7°C | 21.9°C | 28.3°C | 109 mm | 75% | 2.1 m/s | 5.3 |
| 1989 | 37.9°C | 19.5°C | 28.7°C | 6 mm | 61% | 2.1 m/s | 6.2 |
| 1988 | 40.2°C | 21.4°C | 30.8°C | 78 mm | 65% | 2.3 m/s | 6 |
| 1987 | 41.8°C | 22.2°C | 32.0°C | 25 mm | 46% | 2.4 m/s | 6.2 |
| 1986 | 37.7°C | 19.4°C | 28.6°C | 7 mm | 60% | 1.8 m/s | 6.1 |
| 1985 | 38.2°C | 20.8°C | 29.5°C | 47 mm | 61% | 2 m/s | 6 |
| 1984 | 37.0°C | 19.6°C | 28.3°C | 88 mm | 67% | 2.1 m/s | 5.8 |
| 1983 | 36.4°C | 20.6°C | 28.5°C | 92 mm | 72% | 1.6 m/s | — |
| 1982 | 36.8°C | 17.7°C | 27.2°C | 9 mm | 65% | 2.3 m/s | — |
| 1981 | 38.4°C | 22.1°C | 30.2°C | 63 mm | 67% | 2 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 36.6°C with lows near 20.3°C (mean 28.5°C), based on 45 years of NASA POWER data.
September averages 80 mm of rainfall in Tonk, a relatively wet time of year. The wettest on record was 230 mm in 2018.
The hottest September reached 41.8°C in 1987. The coldest dipped to 17.1°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have fallen by about 1.1°C. Daytime highs moved from 37.4°C to 33.8°C and overnight lows from 20.2°C to 21.5°C over the same span.
September is one of the warmer months of the year in Tonk and a relatively wet time of year, so plan for around 36.6°C daytime highs and 20.3°C at night.
Not quite — September is the 7th coolest month in Tonk, averaging 28.5°C.
For September in Tonk, pack light, breathable clothing and sun protection, with typical highs of 36.6°C and lows of 20.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 70% — moderately humid.
Average wind speed in September is 2 m/s. The windiest September on record averaged 2.4 m/s (1987).
The wettest September on record was 2018 with 230 mm. On average, September sees 80 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 Tonk 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.
