September is one of the cooler months of the year in Daman, with average highs near 29.6°C and lows around 23.7°C (mean 26.7°C). It is a relatively wet time of year, averaging 278 mm of rainfall and 87% relative humidity across the period.
September is one of the cooler months of the year in Daman. Across 45 years of records, the warmest September in Daman was 1987 — when the month averaged 27.9°C — while the coldest was 1994 at 25.2°C. Typical September days reach 29.6°C with nights near 23.7°C. The long-term September temperature trend is broadly flat.
September is a relatively wet time of year in Daman, averaging 278 mm of rainfall. The wettest September on record was 2005 with 642 mm, while the driest was 1987 at 13 mm.
Relative humidity in Daman during September averages 87%. The most humid September was 2019 at 92%, and the least humid was 1986 at 76%.
September receives about 4.9 kWh/m²/day of solar energy in Daman. The sunniest September was 1986 at 5.9 kWh/m²/day, and the cloudiest was 2019 at 3.7.
Average wind speed in Daman during September is 2.3 m/s. The windiest Septembers were 2012 and 2021 at 3 m/s, while the calmest were 2004, 2017 and 2020 at 1.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.9°C | 26.4°C | 26.7°C | 26.6°C | 26.7°C | -0.2°C |
| Avg High | 30.4°C | 29.3°C | 29.7°C | 29.4°C | 29.1°C | -1.3°C |
| Avg Low | 23.5°C | 23.3°C | 23.8°C | 23.7°C | 24.3°C | +0.8°C |
| Avg Rain | 164 mm | 230 mm | 271 mm | 353 mm | 412 mm | +248 mm |
September temperatures in Daman have stayed relatively stable across the record.
September has ranged from a record low of 18.3°C (1994) to a record high of 37.2°C (1986).
Rainfall in September is a relatively wet time of year, averaging 278 mm, with a wettest year of 642 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A quieter season to visit Daman
If your dates are flexible, the more temperate months of January and December tend to be the most comfortable for visiting Daman. That said, September — with days averaging 29.6°C and nights around 23.7°C (mean 26.7°C) and higher rainfall (278 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 28.6°C | 26.2°C | 23.7°C | 30.2°C | 21.8°C | 443 mm | 91% | 2.3 m/s | 3.8 |
| 2024 | 28.9°C | 26.6°C | 24.3°C | 30.9°C | 22.4°C | 475 mm | 91% | 2.5 m/s | 4.4 |
| 2023 | 29.8°C | 27.2°C | 24.6°C | 31.9°C | 23.2°C | 249 mm | 88% | 2.4 m/s | 4.3 |
| 2022 | 29.0°C | 26.6°C | 24.2°C | 32.3°C | 22.5°C | 436 mm | 90% | 2.1 m/s | 4.3 |
| 2021 | 28.5°C | 26.5°C | 24.6°C | 29.7°C | 23.7°C | 631 mm | 92% | 3 m/s | 3.9 |
| 2020 | 29.6°C | 27.1°C | 24.6°C | 32.7°C | 22.6°C | 238 mm | 89% | 1.7 m/s | 4.7 |
| 2019 | 28.7°C | 26.6°C | 24.6°C | 30.7°C | 23.0°C | 601 mm | 92% | 2.8 m/s | 3.7 |
| 2018 | 30.2°C | 26.4°C | 22.6°C | 34.2°C | 21.2°C | 56 mm | 84% | 2.1 m/s | 5.5 |
| 2017 | 30.3°C | 27.1°C | 23.8°C | 32.7°C | 22.7°C | 198 mm | 87% | 1.7 m/s | 5.2 |
| 2016 | 28.8°C | 26.1°C | 23.5°C | 30.8°C | 22.3°C | 410 mm | 89% | 2.2 m/s | 4.5 |
| 2015 | 30.2°C | 26.7°C | 23.3°C | 33.5°C | 20.6°C | 433 mm | 85% | 2 m/s | 5 |
| 2014 | 29.4°C | 26.4°C | 23.5°C | 33.5°C | 22.0°C | 329 mm | 88% | 2.3 m/s | 5 |
| 2013 | 29.0°C | 26.5°C | 24.0°C | 32.2°C | 22.9°C | 282 mm | 89% | 2.4 m/s | 4.6 |
| 2012 | 28.9°C | 26.5°C | 24.0°C | 33.0°C | 22.2°C | 494 mm | 89% | 3 m/s | 4.5 |
| 2011 | 28.9°C | 26.3°C | 23.8°C | 30.8°C | 22.1°C | 320 mm | 89% | 2.6 m/s | 4.7 |
| 2010 | 29.6°C | 26.9°C | 24.2°C | 32.3°C | 22.8°C | 410 mm | 89% | 2.3 m/s | 4.8 |
| 2009 | 30.5°C | 27.3°C | 24.2°C | 32.4°C | 22.2°C | 176 mm | 87% | 1.8 m/s | 5.4 |
| 2008 | 29.2°C | 26.4°C | 23.7°C | 31.9°C | 21.2°C | 572 mm | 89% | 2.1 m/s | 4.7 |
| 2007 | 29.3°C | 26.7°C | 24.2°C | 31.2°C | 22.8°C | 475 mm | 90% | 2.3 m/s | 4.7 |
| 2006 | 29.4°C | 26.6°C | 23.7°C | 31.2°C | 22.1°C | 245 mm | 90% | 2 m/s | 5.1 |
| 2005 🌧️ | 29.0°C | 26.6°C | 24.3°C | 31.9°C | 21.6°C | 642 mm | 91% | 2.9 m/s | 4 |
| 2004 | 30.2°C | 27.0°C | 23.9°C | 32.5°C | 22.3°C | 113 mm | 86% | 1.7 m/s | 5.3 |
| 2003 | 28.8°C | 26.3°C | 23.7°C | 30.7°C | 22.7°C | 282 mm | 89% | 2.5 m/s | 4.6 |
| 2002 | 29.5°C | 26.2°C | 23.0°C | 33.6°C | 21.4°C | 126 mm | 86% | 2 m/s | 5.5 |
| 2001 | 30.4°C | 26.9°C | 23.5°C | 34.6°C | 22.0°C | 46 mm | 85% | 1.8 m/s | 5.4 |
| 2000 | 30.9°C | 27.1°C | 23.4°C | 34.6°C | 22.1°C | 32 mm | 82% | 2.1 m/s | 5.4 |
| 1999 | 30.5°C | 27.2°C | 23.9°C | 32.9°C | 22.7°C | 182 mm | 84% | 2.7 m/s | 5 |
| 1998 | 29.1°C | 26.9°C | 24.6°C | 33.2°C | 23.6°C | 422 mm | 90% | 2.5 m/s | 4.8 |
| 1997 | 29.5°C | 26.4°C | 23.3°C | 31.7°C | 22.0°C | 134 mm | 87% | 2.3 m/s | 5.3 |
| 1996 | 28.9°C | 26.1°C | 23.2°C | 32.0°C | 20.9°C | 120 mm | 88% | 2 m/s | 5.4 |
| 1995 | 29.6°C | 26.7°C | 23.7°C | 31.2°C | 22.1°C | 289 mm | 87% | 2.1 m/s | 5.3 |
| 1994 ❄️ | 28.4°C | 25.2°C | 22.0°C | 31.3°C | 18.3°C | 220 mm | 86% | 2.9 m/s | 5.3 |
| 1993 | 29.2°C | 26.5°C | 23.7°C | 31.0°C | 22.5°C | 385 mm | 88% | 2.6 m/s | 4.9 |
| 1992 | 29.7°C | 26.3°C | 22.9°C | 33.4°C | 19.7°C | 197 mm | 84% | 2.5 m/s | 5.2 |
| 1991 | 29.9°C | 26.3°C | 22.7°C | 32.8°C | 20.8°C | 47 mm | 85% | 1.9 m/s | 5.5 |
| 1990 | 28.5°C | 26.0°C | 23.4°C | 29.4°C | 21.4°C | 305 mm | 89% | 2.5 m/s | 5 |
| 1989 | 30.1°C | 26.8°C | 23.6°C | 33.5°C | 22.1°C | 64 mm | 86% | 1.8 m/s | 5.1 |
| 1988 | 29.9°C | 27.3°C | 24.6°C | 32.3°C | 23.1°C | 396 mm | 89% | 2.1 m/s | 5.1 |
| 1987 🔥 | 31.9°C | 27.9°C | 24.0°C | 36.1°C | 22.0°C | 13 mm | 81% | 2.2 m/s | 5.8 |
| 1986 | 32.4°C | 27.6°C | 22.7°C | 37.2°C | 21.3°C | 17 mm | 76% | 2.2 m/s | 5.9 |
| 1985 | 31.0°C | 27.1°C | 23.1°C | 37.1°C | 21.4°C | 36 mm | 80% | 2.2 m/s | 5.7 |
| 1984 | 29.6°C | 26.0°C | 22.4°C | 32.5°C | 20.2°C | 173 mm | 84% | 2.5 m/s | 5.4 |
| 1983 | 29.2°C | 26.6°C | 24.0°C | 30.8°C | 23.2°C | 370 mm | 89% | 2.1 m/s | — |
| 1982 | 29.4°C | 26.1°C | 22.8°C | 31.7°C | 21.4°C | 112 mm | 86% | 2 m/s | — |
| 1981 | 29.7°C | 26.8°C | 24.0°C | 33.1°C | 22.7°C | 297 mm | 87% | 2.1 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 29.6°C with lows near 23.7°C (mean 26.7°C), based on 45 years of NASA POWER data.
September averages 278 mm of rainfall in Daman, a relatively wet time of year. The wettest on record was 642 mm in 2005.
The hottest September reached 37.2°C in 1986. The coldest dipped to 18.3°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.1°C — but days and nights have moved in opposite directions. Overnight lows rose from 23.3°C to 24.3°C while daytime highs eased from 29.8°C to 29°C, narrowing the gap between day and night.
September is one of the cooler months of the year in Daman and a relatively wet time of year, so plan for around 29.6°C daytime highs and 23.7°C at night.
Not quite — September is the 6th coolest month in Daman, averaging 26.7°C.
For September in Daman, pack light layers you can adjust through the day, with typical highs of 29.6°C and lows of 23.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 87% — quite humid.
Average wind speed in September is 2.3 m/s. The windiest September on record averaged 3 m/s (2012).
The wettest September on record was 2005 with 642 mm. On average, September sees 278 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 Daman 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.
