September is one of the warmer months of the year in Jammu, with average highs near 33.4°C and lows around 23°C (mean 28.2°C). It is a relatively wet time of year, averaging 91 mm of rainfall and 60% relative humidity across the period.
September is one of the warmer months of the year in Jammu. Across 45 years of records, the warmest September in Jammu was 1998 — when the month averaged 31.7°C — while the coldest was 1984 at 25.4°C. Typical September days reach 33.4°C with nights near 23°C. The long-term trend is cooling, about 0.3°C per decade.
September is a relatively wet time of year in Jammu, averaging 91 mm of rainfall. The wettest September on record was 2014 with 384 mm, while the driest was 2004 at 6 mm.
Relative humidity in Jammu during September averages 60%. The most humid September was 2025 at 81%, and the least humid was 1987 at 33%.
September receives about 5.6 kWh/m²/day of solar energy in Jammu. The sunniest September was 2001 at 6 kWh/m²/day, and the cloudiest was 2014 at 4.9.
Average wind speed in Jammu during September is 1.2 m/s. The windiest September was 1982 at 1.6 m/s, while the calmest were 2016 and 2023 at 1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.8°C | 28.5°C | 28.5°C | 27.6°C | 27.2°C | -1.6°C |
| Avg High | 35.0°C | 34.2°C | 34.0°C | 32.0°C | 30.8°C | -4.2°C |
| Avg Low | 22.5°C | 22.8°C | 22.9°C | 23.2°C | 23.7°C | +1.2°C |
| Avg Rain | 65 mm | 71 mm | 70 mm | 119 mm | 152 mm | +87 mm |
September temperatures in Jammu have fallen by about 1°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 17.6°C (1992) to a record high of 40.4°C (1987).
Rainfall in September is a relatively wet time of year, averaging 91 mm, with a wettest year of 384 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 1°C per decade while lows rose 0.3°C per decade, narrowing the gap between day and night.
A good time to visit Jammu
September is a good time to visit Jammu, with days averaging 33.4°C and nights around 23°C (mean 28.2°C, warmer than Jammu's yearly average) and higher rainfall. November and March 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 | 30.6°C | 27.2°C | 23.8°C | 32.8°C | 22.2°C | 198 mm | 81% | 1.3 m/s | 5.2 |
| 2024 | 31.2°C | 27.7°C | 24.2°C | 32.8°C | 22.6°C | 116 mm | 79% | 1.1 m/s | 5.6 |
| 2023 | 31.0°C | 27.3°C | 23.7°C | 32.7°C | 20.4°C | 175 mm | 77% | 1 m/s | 5.6 |
| 2022 | 30.1°C | 26.7°C | 23.3°C | 32.2°C | 20.9°C | 176 mm | 80% | 1.1 m/s | 5.3 |
| 2021 | 30.4°C | 27.0°C | 23.6°C | 32.3°C | 21.6°C | 204 mm | 80% | 1.1 m/s | 5 |
| 2020 | 31.4°C | 27.5°C | 23.5°C | 33.4°C | 20.3°C | 44 mm | 73% | 1.2 m/s | 5.9 |
| 2019 | 32.5°C | 28.2°C | 23.8°C | 35.3°C | 20.7°C | 138 mm | 70% | 1.1 m/s | 5.1 |
| 2018 | 30.7°C | 26.7°C | 22.8°C | 33.4°C | 20.2°C | 198 mm | 72% | 1.1 m/s | 5.5 |
| 2017 | 33.3°C | 28.3°C | 23.3°C | 36.1°C | 20.7°C | 42 mm | 60% | 1.2 m/s | 5.7 |
| 2016 | 32.6°C | 28.3°C | 24.0°C | 34.3°C | 22.5°C | 51 mm | 63% | 1 m/s | 5.7 |
| 2015 | 34.9°C | 29.0°C | 23.2°C | 37.5°C | 19.7°C | 79 mm | 50% | 1.4 m/s | 5.9 |
| 2014 🌧️ | 30.0°C | 26.5°C | 23.0°C | 32.9°C | 21.5°C | 384 mm | 76% | 1.1 m/s | 4.9 |
| 2013 | 31.6°C | 27.3°C | 22.9°C | 34.2°C | 20.3°C | 51 mm | 67% | 1.1 m/s | 5.6 |
| 2012 | 33.6°C | 28.8°C | 23.9°C | 35.8°C | 20.6°C | 91 mm | 61% | 1.4 m/s | 5.2 |
| 2011 | 31.2°C | 27.1°C | 23.1°C | 33.5°C | 20.8°C | 64 mm | 71% | 1.1 m/s | 5.4 |
| 2010 | 30.0°C | 26.2°C | 22.3°C | 31.6°C | 19.3°C | 98 mm | 75% | 1.1 m/s | 5.5 |
| 2009 | 35.0°C | 29.0°C | 23.0°C | 37.3°C | 21.0°C | 55 mm | 52% | 1.2 m/s | 5.9 |
| 2008 | 31.3°C | 26.8°C | 22.3°C | 33.5°C | 19.8°C | 67 mm | 65% | 1.1 m/s | 5.7 |
| 2007 | 33.6°C | 28.5°C | 23.5°C | 35.2°C | 19.8°C | 39 mm | 60% | 1.1 m/s | 5.4 |
| 2006 | 31.0°C | 26.7°C | 22.4°C | 33.2°C | 18.8°C | 158 mm | 70% | 1.2 m/s | 5.5 |
| 2005 | 35.6°C | 30.0°C | 24.3°C | 39.3°C | 20.9°C | 65 mm | 53% | 1.2 m/s | 5.5 |
| 2004 | 36.2°C | 29.9°C | 23.6°C | 38.1°C | 21.0°C | 6 mm | 46% | 1.3 m/s | 5.8 |
| 2003 | 33.0°C | 28.2°C | 23.4°C | 35.6°C | 19.4°C | 116 mm | 63% | 1.1 m/s | 5.5 |
| 2002 | 32.9°C | 27.3°C | 21.6°C | 35.0°C | 19.4°C | 87 mm | 57% | 1.2 m/s | 5.8 |
| 2001 | 36.3°C | 29.3°C | 22.4°C | 37.8°C | 18.9°C | 34 mm | 43% | 1.5 m/s | 6 |
| 2000 | 35.3°C | 29.0°C | 22.7°C | 38.1°C | 17.9°C | 71 mm | 48% | 1.2 m/s | 5.9 |
| 1999 | 38.1°C | 31.1°C | 24.2°C | 40.1°C | 22.7°C | 65 mm | 41% | 1.4 m/s | 5.7 |
| 1998 🔥 | 37.8°C | 31.7°C | 25.5°C | 39.9°C | 21.9°C | 16 mm | 39% | 1.4 m/s | 5.2 |
| 1997 | 35.3°C | 28.9°C | 22.6°C | 37.2°C | 17.8°C | 8 mm | 50% | 1.2 m/s | 5.8 |
| 1996 | 33.5°C | 27.9°C | 22.4°C | 36.3°C | 19.6°C | 24 mm | 58% | 1.2 m/s | 5.7 |
| 1995 | 31.5°C | 26.6°C | 21.6°C | 33.8°C | 20.3°C | 50 mm | 66% | 1.2 m/s | 5.8 |
| 1994 | 32.1°C | 26.9°C | 21.7°C | 35.0°C | 17.9°C | 73 mm | 57% | 1.1 m/s | 5.6 |
| 1993 | 34.7°C | 28.7°C | 22.8°C | 37.4°C | 21.0°C | 75 mm | 52% | 1.3 m/s | 5.6 |
| 1992 | 31.6°C | 26.7°C | 21.7°C | 36.7°C | 17.6°C | 167 mm | 63% | 1.3 m/s | 5.4 |
| 1991 | 35.1°C | 28.9°C | 22.8°C | 38.4°C | 18.6°C | 62 mm | 53% | 1.3 m/s | 5.3 |
| 1990 | 32.0°C | 27.5°C | 23.0°C | 35.8°C | 19.5°C | 170 mm | 69% | 1.1 m/s | 5 |
| 1989 | 37.1°C | 29.9°C | 22.7°C | 38.6°C | 19.6°C | 12 mm | 42% | 1.4 m/s | 5.8 |
| 1988 | 34.0°C | 28.3°C | 22.5°C | 37.9°C | 20.1°C | 202 mm | 57% | 1.4 m/s | 5.4 |
| 1987 | 39.1°C | 31.5°C | 24.0°C | 40.4°C | 20.4°C | 13 mm | 33% | 1.5 m/s | 5.9 |
| 1986 | 34.4°C | 28.1°C | 21.8°C | 36.5°C | 20.1°C | 51 mm | 49% | 1.3 m/s | 5.9 |
| 1985 | 35.3°C | 29.0°C | 22.7°C | 37.1°C | 18.4°C | 30 mm | 49% | 1.3 m/s | 5.9 |
| 1984 ❄️ | 29.5°C | 25.4°C | 21.3°C | 31.4°C | 17.8°C | 144 mm | 71% | 1.1 m/s | 5.8 |
| 1983 | 34.0°C | 28.7°C | 23.4°C | 35.7°C | 20.2°C | 92 mm | 60% | 1.4 m/s | — |
| 1982 | 36.9°C | 29.4°C | 22.0°C | 39.1°C | 17.8°C | 14 mm | 35% | 1.6 m/s | — |
| 1981 | 34.5°C | 28.5°C | 22.5°C | 36.3°C | 20.6°C | 29 mm | 57% | 1.4 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 33.4°C with lows near 23°C (mean 28.2°C), based on 45 years of NASA POWER data.
September averages 91 mm of rainfall in Jammu, a relatively wet time of year. The wettest on record was 384 mm in 2014.
The hottest September reached 40.4°C in 1987. The coldest dipped to 17.6°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have fallen by about 1°C — but days and nights have moved in opposite directions. Overnight lows rose from 22.4°C to 23.7°C while daytime highs eased from 34°C to 30.7°C, narrowing the gap between day and night.
September is one of the warmer months of the year in Jammu and a relatively wet time of year, so plan for around 33.4°C daytime highs and 23°C at night.
Not quite — September is the 8th coolest month in Jammu, averaging 28.2°C.
For September in Jammu, pack light, breathable clothing and sun protection, with typical highs of 33.4°C and lows of 23°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 60% — moderately humid.
Average wind speed in September is 1.2 m/s. The windiest September on record averaged 1.6 m/s (1982).
The wettest September on record was 2014 with 384 mm. On average, September sees 91 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 Jammu 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.
