September is close to Guna's year-round average, with average highs near 30.1°C and lows around 21.8°C (mean 26°C). It is a relatively wet time of year, averaging 139 mm of rainfall and 82% relative humidity across the period.
September is close to Guna's year-round average. Across 45 years of records, the warmest September in Guna was 2000 — when the month averaged 27.9°C — while the coldest was 2018 at 24.6°C. Typical September days reach 30.1°C with nights near 21.8°C. The long-term September temperature trend is broadly flat.
September is a relatively wet time of year in Guna, averaging 139 mm of rainfall. The wettest September on record was 1990 with 360 mm, while the driest was 1991 at 15 mm.
Relative humidity in Guna during September averages 82%. The most humid September was 2019 at 91%, and the least humid was 2000 at 66%.
September receives about 5 kWh/m²/day of solar energy in Guna. The sunniest Septembers were 1991, 2001 and 2002 at 5.8 kWh/m²/day, and the cloudiest was 2019 at 3.6.
Average wind speed in Guna during September is 2.1 m/s. The windiest September was 2018 at 2.7 m/s, while the calmest was 2004 at 1.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.0°C | 25.6°C | 26.2°C | 25.7°C | 26.3°C | +0.3°C |
| Avg High | 30.4°C | 29.7°C | 30.8°C | 29.6°C | 29.9°C | -0.5°C |
| Avg Low | 21.5°C | 21.5°C | 21.6°C | 21.8°C | 22.8°C | +1.3°C |
| Avg Rain | 124 mm | 175 mm | 110 mm | 126 mm | 176 mm | +52 mm |
September temperatures in Guna have risen by about 0.7°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 15.3°C (1982) to a record high of 37°C (2000).
Rainfall in September is a relatively wet time of year, averaging 139 mm, with a wettest year of 360 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.1°C per decade while lows rose 0.3°C per decade, narrowing the gap between day and night.
A good time to visit Guna
September is a good time to visit Guna, with days averaging 30.1°C and nights around 21.8°C (mean 26°C, close to Guna's yearly average) and higher 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 | 29.5°C | 26.0°C | 22.5°C | 31.1°C | 20.9°C | 147 mm | 87% | 1.9 m/s | 4.7 |
| 2024 | 29.5°C | 26.3°C | 23.1°C | 31.2°C | 20.5°C | 253 mm | 89% | 2.1 m/s | 4.3 |
| 2023 | 30.2°C | 26.4°C | 22.6°C | 32.0°C | 20.3°C | 169 mm | 84% | 2.2 m/s | 4.5 |
| 2022 | 29.4°C | 26.0°C | 22.7°C | 30.9°C | 20.5°C | 271 mm | 87% | 2 m/s | 4.5 |
| 2021 | 29.4°C | 26.3°C | 23.2°C | 31.0°C | 22.0°C | 153 mm | 87% | 2.3 m/s | 4.1 |
| 2020 | 31.2°C | 27.0°C | 22.7°C | 33.4°C | 20.5°C | 61 mm | 81% | 1.9 m/s | 5 |
| 2019 | 28.6°C | 26.1°C | 23.5°C | 30.9°C | 20.7°C | 326 mm | 91% | 1.9 m/s | 3.6 |
| 2018 ❄️ | 28.5°C | 24.6°C | 20.8°C | 31.3°C | 18.2°C | 173 mm | 85% | 2.7 m/s | 4.1 |
| 2017 | 31.5°C | 26.7°C | 21.9°C | 34.6°C | 18.4°C | 141 mm | 76% | 1.8 m/s | 4.9 |
| 2016 | 29.6°C | 25.7°C | 21.9°C | 31.1°C | 20.2°C | 34 mm | 85% | 1.9 m/s | 5.1 |
| 2015 | 30.3°C | 25.6°C | 20.9°C | 32.6°C | 17.3°C | 36 mm | 79% | 2.1 m/s | 5.7 |
| 2014 | 29.7°C | 25.5°C | 21.2°C | 31.3°C | 18.2°C | 134 mm | 84% | 2.4 m/s | 5.3 |
| 2013 | 30.1°C | 26.0°C | 21.9°C | 31.5°C | 19.2°C | 25 mm | 83% | 1.7 m/s | 5.4 |
| 2012 | 29.5°C | 25.6°C | 21.7°C | 31.9°C | 17.7°C | 100 mm | 84% | 1.9 m/s | 5 |
| 2011 | 28.8°C | 25.3°C | 21.9°C | 30.4°C | 17.7°C | 191 mm | 88% | 2.1 m/s | 4.9 |
| 2010 | 29.6°C | 25.8°C | 21.9°C | 31.1°C | 18.5°C | 101 mm | 81% | 1.9 m/s | 5 |
| 2009 | 32.2°C | 26.8°C | 21.5°C | 35.7°C | 19.0°C | 99 mm | 76% | 2.2 m/s | 5.6 |
| 2008 | 29.8°C | 25.7°C | 21.7°C | 32.4°C | 18.8°C | 154 mm | 83% | 1.9 m/s | 5.4 |
| 2007 | 30.0°C | 25.9°C | 21.9°C | 31.7°C | 18.4°C | 158 mm | 82% | 1.7 m/s | 5.2 |
| 2006 | 30.1°C | 26.0°C | 21.9°C | 31.4°C | 18.6°C | 134 mm | 83% | 1.9 m/s | 5.5 |
| 2005 | 29.9°C | 26.1°C | 22.3°C | 33.8°C | 19.0°C | 144 mm | 84% | 2.5 m/s | 4.7 |
| 2004 | 30.7°C | 26.2°C | 21.7°C | 32.4°C | 20.6°C | 40 mm | 79% | 1.5 m/s | 5.6 |
| 2003 | 28.8°C | 25.5°C | 22.3°C | 30.6°C | 19.1°C | 243 mm | 88% | 2.1 m/s | 3.7 |
| 2002 | 30.5°C | 25.4°C | 20.4°C | 33.5°C | 17.6°C | 59 mm | 77% | 2.1 m/s | 5.8 |
| 2001 | 31.9°C | 26.4°C | 20.9°C | 34.2°C | 18.1°C | 20 mm | 72% | 1.7 m/s | 5.8 |
| 2000 🔥 | 34.3°C | 27.9°C | 21.6°C | 37.0°C | 18.6°C | 48 mm | 66% | 2.3 m/s | 5.4 |
| 1999 | 29.7°C | 25.9°C | 22.1°C | 32.5°C | 19.5°C | 204 mm | 84% | 1.9 m/s | 4 |
| 1998 | 30.6°C | 26.8°C | 22.9°C | 32.5°C | 21.9°C | 119 mm | 83% | 2.1 m/s | 5.1 |
| 1997 | 30.2°C | 26.0°C | 21.7°C | 32.4°C | 18.7°C | 118 mm | 82% | 2 m/s | 5.2 |
| 1996 | 29.7°C | 25.6°C | 21.4°C | 32.4°C | 18.5°C | 120 mm | 82% | 1.7 m/s | 5.4 |
| 1995 | 30.1°C | 25.6°C | 21.1°C | 32.1°C | 17.7°C | 255 mm | 82% | 2.2 m/s | 5.5 |
| 1994 | 29.3°C | 24.9°C | 20.4°C | 30.6°C | 15.8°C | 107 mm | 80% | 2.4 m/s | 5.4 |
| 1993 | 29.6°C | 25.9°C | 22.1°C | 31.8°C | 20.2°C | 348 mm | 84% | 2.4 m/s | 4.6 |
| 1992 | 29.1°C | 24.8°C | 20.5°C | 31.2°C | 16.4°C | 100 mm | 81% | 2.1 m/s | 5 |
| 1991 | 30.1°C | 25.2°C | 20.4°C | 31.8°C | 17.1°C | 15 mm | 79% | 2.1 m/s | 5.8 |
| 1990 🌧️ | 28.6°C | 25.6°C | 22.5°C | 30.4°C | 21.2°C | 360 mm | 89% | 2.3 m/s | 3.8 |
| 1989 | 31.0°C | 26.3°C | 21.5°C | 33.4°C | 19.3°C | 102 mm | 75% | 2.1 m/s | 5.7 |
| 1988 | 31.9°C | 27.4°C | 22.9°C | 35.1°C | 20.7°C | 79 mm | 79% | 2.2 m/s | 5.7 |
| 1987 | 31.7°C | 26.4°C | 21.2°C | 33.9°C | 18.7°C | 107 mm | 74% | 2.5 m/s | 5.4 |
| 1986 | 31.0°C | 25.9°C | 20.9°C | 33.1°C | 19.1°C | 37 mm | 76% | 1.9 m/s | 5.7 |
| 1985 | 29.8°C | 25.3°C | 20.7°C | 31.8°C | 18.1°C | 203 mm | 81% | 2.4 m/s | 5.3 |
| 1984 | 28.7°C | 24.7°C | 20.7°C | 31.3°C | 17.9°C | 124 mm | 81% | 2.3 m/s | 5.3 |
| 1983 | 29.5°C | 26.1°C | 22.7°C | 31.8°C | 18.7°C | 302 mm | 85% | 1.8 m/s | — |
| 1982 | 29.8°C | 25.3°C | 20.8°C | 32.3°C | 15.3°C | 76 mm | 81% | 2.2 m/s | — |
| 1981 | 30.6°C | 26.3°C | 22.0°C | 32.9°C | 21.0°C | 84 mm | 81% | 2.2 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 30.1°C with lows near 21.8°C (mean 26°C), based on 45 years of NASA POWER data.
September averages 139 mm of rainfall in Guna, a relatively wet time of year. The wettest on record was 360 mm in 1990.
The hottest September reached 37°C in 2000. The coldest dipped to 15.3°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.7°C — but days and nights have moved in opposite directions. Overnight lows rose from 21.4°C to 22.8°C while daytime highs eased from 29.7°C to 29.6°C, narrowing the gap between day and night.
September is close to Guna's year-round average and a relatively wet time of year, so plan for around 30.1°C daytime highs and 21.8°C at night.
Not quite — September is the 7th coolest month in Guna, averaging 26°C.
For September in Guna, pack light, breathable clothing and sun protection, with typical highs of 30.1°C and lows of 21.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 82% — quite humid.
Average wind speed in September is 2.1 m/s. The windiest September on record averaged 2.7 m/s (2018).
The wettest September on record was 1990 with 360 mm. On average, September sees 139 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 Guna 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.
