September is one of the warmer months of the year in Hamirpur, with average highs near 35.2°C and lows around 21.1°C (mean 28.2°C). It is a relatively wet time of year, averaging 143 mm of rainfall and 79% relative humidity across the period.
September is one of the warmer months of the year in Hamirpur. Across 45 years of records, the warmest September in Hamirpur was 2015 — when the month averaged 30.7°C — while the coldest was 1982 at 24.9°C. Typical September days reach 35.2°C with nights near 21.1°C. The long-term trend is warming, about 0.2°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.4°C | 27.2°C | 28.6°C | 28.2°C | 28.6°C | +0.2°C |
| Avg High | 35.9°C | 33.8°C | 36.1°C | 35.3°C | 34.7°C | -1.2°C |
| Avg Low | 21.0°C | 20.6°C | 21.0°C | 21.1°C | 22.4°C | +1.4°C |
| Avg Rain | 144 mm | 163 mm | 141 mm | 109 mm | 165 mm | +21 mm |
September temperatures in Hamirpur have risen by about 1.1°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 16.6°C (1982) to a record high of 40.4°C (2015).
Rainfall in September is a relatively wet time of year, averaging 143 mm, with a wettest year of 314 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
A good time to visit Hamirpur
September is a good time to visit Hamirpur, with days averaging 35.2°C and nights around 21.1°C (mean 28.2°C, warmer than Hamirpur's yearly average) and higher rainfall. November and February are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 33.4°C | 21.7°C | 27.6°C | 194 mm | 85% | 1.8 m/s | 4.6 |
| 2024 | 33.8°C | 23.5°C | 28.6°C | 173 mm | 86% | 2 m/s | 4.3 |
| 2023 | 36.2°C | 22.1°C | 29.1°C | 145 mm | 80% | 1.7 m/s | 4.7 |
| 2022 | 34.1°C | 22.6°C | 28.3°C | 233 mm | 83% | 1.9 m/s | 4.4 |
| 2021 | 33.5°C | 23.3°C | 28.4°C | 171 mm | 86% | 2.3 m/s | 4.6 |
| 2020 | 37.2°C | 21.4°C | 29.3°C | 73 mm | 76% | 1.6 m/s | 4.6 |
| 2019 | 34.3°C | 22.7°C | 28.5°C | 234 mm | 87% | 1.8 m/s | 3.8 |
| 2018 | 32.4°C | 20.0°C | 26.2°C | 125 mm | 85% | 2.3 m/s | 4.7 |
| 2017 | 37.7°C | 21.1°C | 29.4°C | 52 mm | 66% | 1.6 m/s | 5 |
| 2016 | 33.9°C | 23.3°C | 28.6°C | 53 mm | 82% | 1.7 m/s | 4.7 |
| 2015 🔥 | 40.4°C | 20.9°C | 30.7°C | 76 mm | 56% | 2.4 m/s | 5.6 |
| 2014 | 37.2°C | 21.4°C | 29.3°C | 131 mm | 69% | 2.4 m/s | 5.1 |
| 2013 | 35.2°C | 22.4°C | 28.8°C | 65 mm | 77% | 1.8 m/s | 5.2 |
| 2012 | 35.0°C | 19.0°C | 27.0°C | 112 mm | 80% | 2.1 m/s | 4.5 |
| 2011 | 33.6°C | 21.0°C | 27.3°C | 88 mm | 83% | 2.2 m/s | 4.8 |
| 2010 | 33.1°C | 19.1°C | 26.1°C | 157 mm | 83% | 1.9 m/s | 4.8 |
| 2009 | 34.8°C | 20.4°C | 27.6°C | 225 mm | 82% | 1.8 m/s | 4.9 |
| 2008 | 34.1°C | 20.4°C | 27.3°C | 182 mm | 85% | 1.9 m/s | 5.4 |
| 2007 | 36.7°C | 22.1°C | 29.4°C | 86 mm | 74% | 1.9 m/s | 4.8 |
| 2006 | 38.1°C | 21.5°C | 29.8°C | 44 mm | 65% | 1.9 m/s | 5.4 |
| 2005 | 37.2°C | 21.5°C | 29.4°C | 150 mm | 81% | 2.4 m/s | 4.7 |
| 2004 | 39.3°C | 21.0°C | 30.1°C | 125 mm | 69% | 1.7 m/s | 5.2 |
| 2003 🌧️ | 32.4°C | 22.9°C | 27.6°C | 314 mm | 88% | 1.7 m/s | 3.5 |
| 2002 | 34.3°C | 19.5°C | 26.9°C | 210 mm | 79% | 1.8 m/s | 4.8 |
| 2001 | 37.8°C | 20.7°C | 29.2°C | 25 mm | 66% | 1.7 m/s | 5.6 |
| 2000 | 36.4°C | 20.4°C | 28.4°C | 54 mm | 77% | 1.5 m/s | 4.9 |
| 1999 | 33.1°C | 22.6°C | 27.8°C | 190 mm | 85% | 1.6 m/s | 4.2 |
| 1998 | 34.3°C | 23.4°C | 28.9°C | 115 mm | 83% | 2 m/s | 5.1 |
| 1997 | 35.7°C | 20.1°C | 27.9°C | 165 mm | 77% | 2 m/s | 4.9 |
| 1996 | 33.4°C | 20.5°C | 26.9°C | 137 mm | 82% | 1.5 m/s | 5.1 |
| 1995 | 34.0°C | 19.4°C | 26.7°C | 169 mm | 82% | 2.1 m/s | 5.1 |
| 1994 | 33.5°C | 17.0°C | 25.2°C | 42 mm | 76% | 2.2 m/s | 5.2 |
| 1993 | 33.1°C | 22.2°C | 27.7°C | 290 mm | 83% | 2.4 m/s | 3.7 |
| 1992 | 34.1°C | 18.7°C | 26.4°C | 168 mm | 79% | 1.9 m/s | 4.7 |
| 1991 | 33.4°C | 19.3°C | 26.3°C | 140 mm | 81% | 1.8 m/s | 4.7 |
| 1990 | 33.5°C | 22.5°C | 28.0°C | 215 mm | 86% | 2.3 m/s | 4.4 |
| 1989 | 37.6°C | 23.4°C | 30.5°C | 162 mm | 76% | 1.7 m/s | 4.8 |
| 1988 | 35.9°C | 21.7°C | 28.8°C | 39 mm | 78% | 2.1 m/s | 5.4 |
| 1987 | 39.6°C | 20.9°C | 30.3°C | 136 mm | 67% | 2.1 m/s | 4.5 |
| 1986 | 39.1°C | 20.2°C | 29.6°C | 60 mm | 62% | 2.3 m/s | 5.3 |
| 1985 | 35.5°C | 20.8°C | 28.2°C | 279 mm | 81% | 2.3 m/s | 4.9 |
| 1984 | 33.1°C | 18.7°C | 25.9°C | 131 mm | 80% | 2 m/s | 5.3 |
| 1983 | 34.1°C | 23.9°C | 29.0°C | 193 mm | 85% | 2.2 m/s | — |
| 1982 ❄️ | 33.3°C | 16.6°C | 24.9°C | 143 mm | 82% | 2.1 m/s | — |
| 1981 | 34.7°C | 22.4°C | 28.6°C | 150 mm | 82% | 2.1 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 35.2°C with lows near 21.1°C (mean 28.2°C), based on 45 years of NASA POWER data.
September averages 143 mm of rainfall in Hamirpur, a relatively wet time of year. The wettest on record was 314 mm in 2003.
The hottest September reached 40.4°C in 2015. The coldest dipped to 16.6°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.1°C. Daytime highs moved from 34.1°C to 34.2°C and overnight lows from 20.5°C to 22.6°C over the same span.
September is one of the warmer months of the year in Hamirpur and a relatively wet time of year, so plan for around 35.2°C daytime highs and 21.1°C at night.
Not quite — September is the 7th coolest month in Hamirpur, averaging 28.2°C.
For September in Hamirpur, pack light, breathable clothing and sun protection, with typical highs of 35.2°C and lows of 21.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 79% — quite humid.
Average wind speed in September is 2 m/s. The windiest September on record averaged 2.4 m/s (1993).
The wettest September on record was 2003 with 314 mm. On average, September sees 143 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 Hamirpur 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.
