September is one of the warmer months of the year in Jupiter, with average highs near 29.2°C and lows around 26.3°C (mean 27.8°C). It is a relatively wet time of year, averaging 202 mm of rainfall and 80% relative humidity across the period.
September is one of the warmer months of the year in Jupiter. Across 45 years of records, the warmest September in Jupiter was 2024 — when the month averaged 29.1°C — while the coldest was 1984 at 26.7°C. Typical September days reach 29.2°C with nights near 26.3°C. The long-term trend is warming, about 0.2°C per decade.
September is a relatively wet time of year in Jupiter, averaging 202 mm of rainfall. The wettest September on record was 2001 with 347 mm, while the driest was 1988 at 48 mm.
Relative humidity in Jupiter during September averages 80%. The most humid September was 2004 at 84%, and the least humid was 2006 at 78%.
September receives about 4.8 kWh/m²/day of solar energy in Jupiter. The sunniest September was 2019 at 5.5 kWh/m²/day, and the cloudiest was 1994 at 4.2.
Average wind speed in Jupiter during September is 3.1 m/s. The windiest September was 2004 at 5.6 m/s, while the calmest was 2015 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.4°C | 27.5°C | 27.7°C | 27.9°C | 28.3°C | +0.9°C |
| Avg High | 28.9°C | 28.9°C | 29.2°C | 29.4°C | 29.9°C | +1°C |
| Avg Low | 25.9°C | 26.1°C | 26.2°C | 26.4°C | 26.8°C | +0.9°C |
| Avg Rain | 177 mm | 210 mm | 194 mm | 184 mm | 268 mm | +91 mm |
September temperatures in Jupiter have risen by about 1.4°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 20.5°C (2022) to a record high of 31.8°C (1987).
Rainfall in September is a relatively wet time of year, averaging 202 mm, with a wettest year of 347 mm.
A quieter season to visit Jupiter
If your dates are flexible, the more temperate months of December and March tend to be the most comfortable for visiting Jupiter. That said, September — with days averaging 29.2°C and nights around 26.3°C (mean 27.8°C) and higher rainfall (202 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 29.6°C | 28.2°C | 26.7°C | 31.2°C | 25.4°C | 342 mm | 82% | 2.8 m/s | 4.7 |
| 2024 🔥 | 30.5°C | 29.1°C | 27.6°C | 31.6°C | 26.7°C | 320 mm | 83% | 3 m/s | 4.8 |
| 2023 | 30.1°C | 28.5°C | 27.0°C | 31.4°C | 25.7°C | 247 mm | 78% | 2.6 m/s | 5.2 |
| 2022 | 29.9°C | 28.2°C | 26.5°C | 31.6°C | 20.5°C | 316 mm | 81% | 2.8 m/s | 5 |
| 2021 | 29.6°C | 27.9°C | 26.2°C | 30.7°C | 24.6°C | 174 mm | 79% | 2.4 m/s | 5.2 |
| 2020 | 29.5°C | 28.1°C | 26.6°C | 31.2°C | 25.5°C | 210 mm | 82% | 3.2 m/s | 4.9 |
| 2019 | 29.4°C | 27.8°C | 26.2°C | 31.5°C | 24.7°C | 77 mm | 81% | 5.3 m/s | 5.5 |
| 2018 | 29.5°C | 28.2°C | 26.8°C | 30.7°C | 25.6°C | 143 mm | 81% | 3 m/s | 5.1 |
| 2017 | 29.7°C | 28.2°C | 26.6°C | 30.8°C | 24.9°C | 226 mm | 81% | 3.5 m/s | 4.9 |
| 2016 | 29.4°C | 28.0°C | 26.5°C | 30.8°C | 24.9°C | 311 mm | 82% | 2.4 m/s | 4.7 |
| 2015 | 29.7°C | 28.2°C | 26.8°C | 31.2°C | 25.2°C | 218 mm | 81% | 2.2 m/s | 4.4 |
| 2014 | 29.1°C | 27.6°C | 26.2°C | 30.6°C | 24.6°C | 215 mm | 80% | 2.5 m/s | 4.5 |
| 2013 | 28.9°C | 27.5°C | 26.0°C | 30.2°C | 25.0°C | 181 mm | 81% | 2.8 m/s | 4.4 |
| 2012 | 28.8°C | 27.4°C | 25.9°C | 31.2°C | 25.0°C | 148 mm | 80% | 3 m/s | 4.9 |
| 2011 | 29.6°C | 28.0°C | 26.5°C | 31.1°C | 25.4°C | 143 mm | 79% | 2.7 m/s | 5.1 |
| 2010 | 29.7°C | 28.2°C | 26.7°C | 31.5°C | 24.6°C | 176 mm | 79% | 3.7 m/s | 4.9 |
| 2009 | 29.3°C | 27.9°C | 26.6°C | 30.0°C | 24.7°C | 154 mm | 80% | 2.4 m/s | 4.8 |
| 2008 | 28.7°C | 27.4°C | 26.0°C | 29.7°C | 23.7°C | 139 mm | 81% | 3.6 m/s | 4.8 |
| 2007 | 29.2°C | 27.9°C | 26.5°C | 31.3°C | 24.3°C | 197 mm | 80% | 3.1 m/s | 4.8 |
| 2006 | 29.4°C | 27.7°C | 26.0°C | 30.9°C | 24.6°C | 148 mm | 78% | 2.9 m/s | 5.1 |
| 2005 | 29.3°C | 27.7°C | 26.1°C | 30.4°C | 24.5°C | 165 mm | 83% | 3.5 m/s | 4.9 |
| 2004 | 28.9°C | 27.7°C | 26.4°C | 30.2°C | 25.2°C | 334 mm | 84% | 5.6 m/s | 4.5 |
| 2003 | 29.1°C | 27.6°C | 26.1°C | 30.1°C | 24.9°C | 173 mm | 83% | 3.1 m/s | 4.8 |
| 2002 | 29.4°C | 28.0°C | 26.6°C | 30.4°C | 25.5°C | 115 mm | 82% | 3 m/s | 4.8 |
| 2001 🌧️ | 28.5°C | 27.0°C | 25.6°C | 31.1°C | 22.5°C | 347 mm | 81% | 3.2 m/s | 4.4 |
| 2000 | 29.7°C | 28.1°C | 26.5°C | 31.0°C | 25.3°C | 166 mm | 79% | 3 m/s | 4.9 |
| 1999 | 29.0°C | 27.5°C | 26.0°C | 31.5°C | 24.1°C | 238 mm | 81% | 3.8 m/s | 4.6 |
| 1998 | 29.2°C | 27.8°C | 26.5°C | 31.8°C | 24.8°C | 303 mm | 83% | 3.6 m/s | 4.5 |
| 1997 | 28.6°C | 27.3°C | 25.9°C | 30.0°C | 24.7°C | 188 mm | 82% | 3.3 m/s | 4.6 |
| 1996 | 29.2°C | 27.5°C | 25.9°C | 30.5°C | 24.3°C | 129 mm | 80% | 3 m/s | 5.2 |
| 1995 | 29.3°C | 27.9°C | 26.4°C | 30.6°C | 25.6°C | 178 mm | 80% | 2.6 m/s | 4.7 |
| 1994 | 28.2°C | 27.0°C | 25.7°C | 29.9°C | 24.8°C | 272 mm | 83% | 2.9 m/s | 4.2 |
| 1993 | 29.1°C | 27.7°C | 26.3°C | 30.4°C | 24.1°C | 170 mm | 80% | 3 m/s | 4.6 |
| 1992 | 28.7°C | 27.3°C | 26.0°C | 30.0°C | 25.0°C | 227 mm | 82% | 3.1 m/s | 4.6 |
| 1991 | 28.9°C | 27.6°C | 26.3°C | 29.8°C | 24.2°C | 166 mm | 80% | 2.8 m/s | 4.9 |
| 1990 | 29.2°C | 27.8°C | 26.3°C | 30.4°C | 24.4°C | 232 mm | 78% | 2.8 m/s | 5 |
| 1989 | 29.7°C | 28.0°C | 26.4°C | 30.9°C | 25.2°C | 137 mm | 78% | 3 m/s | 5.3 |
| 1988 | 29.3°C | 27.7°C | 26.2°C | 30.0°C | 24.2°C | 48 mm | 79% | 3.6 m/s | 5.2 |
| 1987 | 29.7°C | 28.0°C | 26.4°C | 31.8°C | 25.0°C | 191 mm | 78% | 2.3 m/s | 4.5 |
| 1986 | 29.1°C | 27.5°C | 26.0°C | 29.9°C | 25.0°C | 119 mm | 78% | 2.8 m/s | 5.2 |
| 1985 | 28.1°C | 26.8°C | 25.6°C | 29.4°C | 24.4°C | 271 mm | 81% | 3.8 m/s | 4.8 |
| 1984 ❄️ | 28.2°C | 26.7°C | 25.1°C | 29.5°C | 23.0°C | 255 mm | 80% | 4.2 m/s | 4.7 |
| 1983 | 28.6°C | 27.3°C | 25.9°C | 30.6°C | 22.8°C | 194 mm | 81% | 3.3 m/s | — |
| 1982 | 28.7°C | 27.3°C | 25.9°C | 30.0°C | 24.5°C | 189 mm | 79% | 2.8 m/s | — |
| 1981 | 28.6°C | 27.1°C | 25.7°C | 30.2°C | 24.2°C | 188 mm | 79% | 3 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 29.2°C with lows near 26.3°C (mean 27.8°C), based on 45 years of NASA POWER data.
September averages 202 mm of rainfall in Jupiter, a relatively wet time of year. The wettest on record was 347 mm in 2001.
The hottest September reached 31.8°C in 1987. The coldest dipped to 20.5°C in 2022.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.4°C. Daytime highs moved from 28.4°C to 29.9°C and overnight lows from 25.6°C to 26.8°C over the same span.
September is one of the warmer months of the year in Jupiter and a relatively wet time of year, so plan for around 29.2°C daytime highs and 26.3°C at night.
Not quite — September is the 10th coolest month in Jupiter, averaging 27.8°C.
For September in Jupiter, pack light layers you can adjust through the day, with typical highs of 29.2°C and lows of 26.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 80% — quite humid.
Average wind speed in September is 3.1 m/s. The windiest September on record averaged 5.6 m/s (2004).
The wettest September on record was 2001 with 347 mm. On average, September sees 202 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 Jupiter 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.
