September is one of the warmer months of the year in Tonk, with average highs near 33.8°C and lows around 22.9°C (mean 28.4°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 31.6°C — while the coldest were 1992 and 2018 at 25.9°C. Typical September days reach 33.8°C with nights near 22.9°C. The long-term trend is cooling, about 0.3°C per decade.
September is a relatively wet time of year in Tonk, averaging 80 mm of rainfall. The wettest September on record was 2018 with 230 mm, while the driest was 2001 at 5 mm.
Relative humidity in Tonk during September averages 70%. The most humid September was 2021 at 87%, and the least humid was 2002 at 44%.
September receives about 5.6 kWh/m²/day of solar energy in Tonk. The sunniest Septembers were 1989, 2001 and 2009, among others at 6.2 kWh/m²/day, and the cloudiest was 2021 at 4.4.
Average wind speed in Tonk during September is 2 m/s. The windiest Septembers were 1987 and 2018 at 2.4 m/s, while the calmest were 2012, 2019 and 2024, among others at 1.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.0°C | 28.1°C | 29.7°C | 27.1°C | 27.8°C | -1.2°C |
| Avg High | 35.3°C | 33.5°C | 35.8°C | 31.9°C | 31.8°C | -3.5°C |
| Avg Low | 22.8°C | 22.6°C | 23.5°C | 22.4°C | 23.8°C | +1°C |
| Avg Rain | 46 mm | 89 mm | 50 mm | 104 mm | 126 mm | +79 mm |
September temperatures in Tonk have fallen by about 0.7°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 0.8°C per decade while lows rose 0.2°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 33.8°C and nights around 22.9°C (mean 28.4°C, warmer than Tonk's yearly average) and moderate rainfall. November and February are marginally more temperate, but September still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 30.8°C | 27.0°C | 23.2°C | 32.8°C | 21.0°C | 143 mm | 85% | 2.1 m/s | 5 |
| 2024 | 30.7°C | 27.4°C | 24.1°C | 33.6°C | 21.1°C | 189 mm | 87% | 1.6 m/s | 4.7 |
| 2023 | 34.0°C | 29.0°C | 23.9°C | 37.2°C | 21.0°C | 93 mm | 73% | 2.1 m/s | 5 |
| 2022 | 31.5°C | 27.5°C | 23.5°C | 33.0°C | 21.4°C | 92 mm | 83% | 2 m/s | 5.2 |
| 2021 | 30.5°C | 27.4°C | 24.4°C | 32.3°C | 23.2°C | 168 mm | 87% | 2.2 m/s | 4.4 |
| 2020 | 33.2°C | 28.4°C | 23.7°C | 35.6°C | 21.7°C | 69 mm | 76% | 1.7 m/s | 5.3 |
| 2019 | 30.6°C | 27.4°C | 24.3°C | 33.3°C | 22.0°C | 152 mm | 87% | 1.6 m/s | 4.7 |
| 2018 🌧️ | 30.7°C | 25.9°C | 21.1°C | 33.3°C | 18.0°C | 230 mm | 79% | 2.4 m/s | 4.5 |
| 2017 | 34.9°C | 28.8°C | 22.6°C | 37.9°C | 20.2°C | 40 mm | 65% | 1.9 m/s | 5.3 |
| 2016 | 31.8°C | 26.9°C | 22.0°C | 34.3°C | 20.2°C | 35 mm | 79% | 1.8 m/s | 6 |
| 2015 | 35.2°C | 28.6°C | 22.1°C | 38.6°C | 18.5°C | 25 mm | 61% | 2 m/s | 6 |
| 2014 | 31.8°C | 26.7°C | 21.6°C | 34.1°C | 18.3°C | 89 mm | 78% | 2.3 m/s | 5.6 |
| 2013 | 32.1°C | 27.3°C | 22.6°C | 34.6°C | 20.4°C | 91 mm | 77% | 1.7 m/s | 5.6 |
| 2012 | 30.5°C | 26.3°C | 22.2°C | 32.8°C | 17.8°C | 125 mm | 80% | 1.6 m/s | 5.2 |
| 2011 | 30.8°C | 26.8°C | 22.9°C | 32.0°C | 19.7°C | 158 mm | 84% | 2.2 m/s | 5.1 |
| 2010 | 30.9°C | 26.6°C | 22.3°C | 32.8°C | 17.9°C | 91 mm | 80% | 1.9 m/s | 4.9 |
| 2009 | 37.9°C | 30.7°C | 23.4°C | 41.5°C | 20.5°C | 23 mm | 54% | 2.2 m/s | 6.2 |
| 2008 | 34.2°C | 28.7°C | 23.3°C | 38.4°C | 20.6°C | 84 mm | 69% | 1.9 m/s | 5.6 |
| 2007 | 33.5°C | 28.4°C | 23.2°C | 35.9°C | 20.7°C | 95 mm | 71% | 1.6 m/s | 5.5 |
| 2006 | 33.9°C | 28.6°C | 23.2°C | 36.6°C | 20.1°C | 57 mm | 72% | 2.1 m/s | 5.6 |
| 2005 | 35.3°C | 29.7°C | 24.0°C | 40.9°C | 20.3°C | 102 mm | 66% | 2.2 m/s | 5.2 |
| 2004 | 33.0°C | 27.7°C | 22.4°C | 35.7°C | 20.6°C | 20 mm | 74% | 1.6 m/s | 5.9 |
| 2003 | 34.9°C | 29.4°C | 23.8°C | 38.1°C | 21.9°C | 62 mm | 67% | 1.9 m/s | 5.5 |
| 2002 | 38.7°C | 31.1°C | 23.6°C | 40.7°C | 21.8°C | 29 mm | 44% | 2.2 m/s | 6.1 |
| 2001 | 38.3°C | 30.9°C | 23.5°C | 41.1°C | 20.6°C | 5 mm | 47% | 1.6 m/s | 6.2 |
| 2000 | 38.6°C | 31.4°C | 24.3°C | 40.3°C | 21.0°C | 17 mm | 44% | 2.2 m/s | 6 |
| 1999 🔥 | 38.0°C | 31.6°C | 25.2°C | 41.0°C | 23.7°C | 42 mm | 54% | 2.1 m/s | 5.6 |
| 1998 | 35.1°C | 29.9°C | 24.8°C | 40.5°C | 23.0°C | 134 mm | 68% | 2 m/s | 5.6 |
| 1997 | 33.8°C | 28.3°C | 22.8°C | 37.4°C | 20.8°C | 47 mm | 70% | 1.9 m/s | 5.9 |
| 1996 | 32.5°C | 27.2°C | 21.9°C | 35.2°C | 19.2°C | 113 mm | 74% | 1.8 m/s | 5.5 |
| 1995 | 32.9°C | 27.1°C | 21.4°C | 35.8°C | 18.5°C | 31 mm | 70% | 1.8 m/s | 5.9 |
| 1994 | 31.1°C | 26.2°C | 21.3°C | 32.8°C | 17.1°C | 83 mm | 75% | 2.2 m/s | 6.1 |
| 1993 | 34.9°C | 29.2°C | 23.4°C | 38.3°C | 21.4°C | 107 mm | 67% | 2 m/s | 5.8 |
| 1992 ❄️ | 31.1°C | 25.9°C | 20.8°C | 33.4°C | 17.3°C | 156 mm | 77% | 2.1 m/s | 5.7 |
| 1991 | 33.2°C | 27.2°C | 21.2°C | 35.9°C | 18.7°C | 73 mm | 68% | 2.2 m/s | 6.1 |
| 1990 | 32.8°C | 28.1°C | 23.5°C | 34.7°C | 21.9°C | 109 mm | 75% | 2.1 m/s | 5.3 |
| 1989 | 35.0°C | 28.6°C | 22.2°C | 37.9°C | 19.5°C | 6 mm | 61% | 2.1 m/s | 6.2 |
| 1988 | 36.1°C | 30.3°C | 24.4°C | 40.2°C | 21.4°C | 78 mm | 65% | 2.3 m/s | 6 |
| 1987 | 39.0°C | 31.4°C | 23.9°C | 41.8°C | 22.2°C | 25 mm | 46% | 2.4 m/s | 6.2 |
| 1986 | 35.3°C | 28.6°C | 22.0°C | 37.7°C | 19.4°C | 7 mm | 60% | 1.8 m/s | 6.1 |
| 1985 | 35.5°C | 28.8°C | 22.0°C | 38.2°C | 20.8°C | 47 mm | 61% | 2 m/s | 6 |
| 1984 | 33.1°C | 27.7°C | 22.2°C | 37.0°C | 19.6°C | 88 mm | 67% | 2.1 m/s | 5.8 |
| 1983 | 33.8°C | 28.7°C | 23.6°C | 36.4°C | 20.6°C | 92 mm | 72% | 1.6 m/s | — |
| 1982 | 34.5°C | 27.8°C | 21.1°C | 36.8°C | 17.7°C | 9 mm | 65% | 2.3 m/s | — |
| 1981 | 35.0°C | 29.2°C | 23.4°C | 38.4°C | 22.1°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 33.8°C with lows near 22.9°C (mean 28.4°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 0.7°C — but days and nights have moved in opposite directions. Overnight lows rose from 22.5°C to 23.8°C while daytime highs eased from 34.4°C to 31.5°C, narrowing the gap between day and night.
September is one of the warmer months of the year in Tonk and a relatively wet time of year, so plan for around 33.8°C daytime highs and 22.9°C at night.
Not quite — September is the 7th coolest month in Tonk, averaging 28.4°C.
For September in Tonk, pack light, breathable clothing and sun protection, with typical highs of 33.8°C and lows of 22.9°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.
