September is one of the warmer months of the year in Gyalshing, with average highs near 13.8°C and lows around 6.7°C (mean 10.3°C). It is a relatively wet time of year, averaging 148 mm of rainfall and 90% relative humidity across the period.
September is one of the warmer months of the year in Gyalshing. Across 45 years of records, the warmest September in Gyalshing was 2024 — when the month averaged 11.2°C — while the coldest was 1984 at 9.1°C. Typical September days reach 13.8°C with nights near 6.7°C. The long-term trend is warming, about 0.2°C per decade.
September is a relatively wet time of year in Gyalshing, averaging 148 mm of rainfall. The wettest September on record was 2024 with 462 mm, while the driest was 1994 at 58 mm.
Relative humidity in Gyalshing during September averages 90%. The most humid September was 2020 at 94%, and the least humid was 2002 at 87%.
September receives about 3.9 kWh/m²/day of solar energy in Gyalshing. The sunniest September was 1997 at 4.6 kWh/m²/day, and the cloudiest were 2016 and 2020 at 3.3.
Average wind speed in Gyalshing during September is 1.4 m/s. The windiest September was 1983 at 1.6 m/s, while the calmest were 2023, 2024 and 2025, among others at 1.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 9.8°C | 10.2°C | 10.1°C | 10.4°C | 10.9°C | +1.1°C |
| Avg High | 13.4°C | 14.0°C | 13.9°C | 13.7°C | 14.1°C | +0.7°C |
| Avg Low | 6.4°C | 6.4°C | 6.4°C | 7.1°C | 7.8°C | +1.4°C |
| Avg Rain | 123 mm | 93 mm | 106 mm | 188 mm | 279 mm | +156 mm |
September temperatures in Gyalshing have risen by about 1.2°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 1.4°C (2000) to a record high of 16.8°C (2023).
Rainfall in September is a relatively wet time of year, averaging 148 mm, with a wettest year of 462 mm.
One of the best times to visit Gyalshing
September is one of the best times to visit Gyalshing. Expect days averaging 13.8°C and nights around 6.7°C (mean 10.3°C) — warmer than Gyalshing's yearly average — with higher rainfall (148 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 14.4°C | 11.1°C | 7.8°C | 15.9°C | 6.4°C | 247 mm | 92% | 1.3 m/s | 3.8 |
| 2024 🔥 🌧️ | 14.4°C | 11.2°C | 8.0°C | 16.4°C | 6.0°C | 462 mm | 91% | 1.3 m/s | 4 |
| 2023 | 14.5°C | 11.1°C | 7.7°C | 16.8°C | 6.4°C | 154 mm | 90% | 1.3 m/s | 4.2 |
| 2022 | 13.8°C | 10.8°C | 7.8°C | 15.2°C | 6.2°C | 254 mm | 93% | 1.5 m/s | 3.4 |
| 2021 | 13.8°C | 10.4°C | 7.1°C | 16.1°C | 5.9°C | 171 mm | 92% | 1.4 m/s | 4.1 |
| 2020 | 13.9°C | 11.1°C | 8.3°C | 15.6°C | 5.7°C | 384 mm | 94% | 1.4 m/s | 3.3 |
| 2019 | 13.3°C | 10.3°C | 7.3°C | 15.9°C | 4.1°C | 248 mm | 93% | 1.4 m/s | 3.5 |
| 2018 | 14.1°C | 10.7°C | 7.4°C | 15.8°C | 5.3°C | 178 mm | 91% | 1.4 m/s | 4 |
| 2017 | 13.9°C | 10.9°C | 7.9°C | 16.2°C | 6.5°C | 168 mm | 93% | 1.4 m/s | 3.8 |
| 2016 | 13.1°C | 10.2°C | 7.3°C | 15.2°C | 5.4°C | 278 mm | 94% | 1.4 m/s | 3.3 |
| 2015 | 13.9°C | 10.7°C | 7.6°C | 15.3°C | 5.7°C | 168 mm | 92% | 1.5 m/s | 4 |
| 2014 | 13.5°C | 10.1°C | 6.7°C | 15.4°C | 3.2°C | 151 mm | 91% | 1.5 m/s | 3.8 |
| 2013 | 14.0°C | 10.1°C | 6.2°C | 15.7°C | 3.0°C | 124 mm | 88% | 1.3 m/s | 4.2 |
| 2012 | 14.2°C | 10.5°C | 6.8°C | 16.0°C | 4.2°C | 173 mm | 89% | 1.4 m/s | 3.9 |
| 2011 | 13.7°C | 10.3°C | 6.8°C | 15.2°C | 4.3°C | 179 mm | 91% | 1.4 m/s | 3.7 |
| 2010 | 13.6°C | 10.1°C | 6.6°C | 15.1°C | 4.8°C | 213 mm | 91% | 1.4 m/s | 3.6 |
| 2009 | 14.0°C | 10.4°C | 6.7°C | 15.4°C | 5.0°C | 68 mm | 89% | 1.4 m/s | 4.1 |
| 2008 | 13.6°C | 9.9°C | 6.2°C | 14.6°C | 4.7°C | 61 mm | 90% | 1.4 m/s | 3.8 |
| 2007 | 13.5°C | 10.1°C | 6.6°C | 15.6°C | 1.6°C | 178 mm | 90% | 1.4 m/s | 3.7 |
| 2006 | 13.6°C | 10.0°C | 6.3°C | 16.2°C | 4.2°C | 217 mm | 90% | 1.4 m/s | 3.9 |
| 2005 | 14.4°C | 10.4°C | 6.3°C | 16.7°C | 3.8°C | 83 mm | 87% | 1.3 m/s | 4.3 |
| 2004 | 14.0°C | 10.3°C | 6.6°C | 16.7°C | 3.8°C | 93 mm | 89% | 1.4 m/s | 3.6 |
| 2003 | 14.4°C | 10.8°C | 7.1°C | 16.1°C | 5.2°C | 74 mm | 89% | 1.4 m/s | 3.6 |
| 2002 | 13.8°C | 9.6°C | 5.5°C | 14.7°C | 3.7°C | 62 mm | 87% | 1.4 m/s | 3.7 |
| 2001 | 13.8°C | 10.2°C | 6.7°C | 15.2°C | 5.4°C | 113 mm | 90% | 1.4 m/s | 3.7 |
| 2000 | 13.4°C | 9.6°C | 5.8°C | 15.9°C | 1.4°C | 118 mm | 88% | 1.4 m/s | 3.9 |
| 1999 | 14.1°C | 10.3°C | 6.5°C | 16.0°C | 4.2°C | 80 mm | 89% | 1.4 m/s | 4.2 |
| 1998 | 14.3°C | 10.5°C | 6.7°C | 15.6°C | 4.3°C | 88 mm | 89% | 1.3 m/s | 4.2 |
| 1997 | 13.2°C | 9.8°C | 6.3°C | 15.1°C | 2.3°C | 110 mm | 91% | 1.4 m/s | 4.6 |
| 1996 | 13.9°C | 10.1°C | 6.3°C | 15.1°C | 3.7°C | 62 mm | 89% | 1.4 m/s | 4.5 |
| 1995 | 14.3°C | 10.4°C | 6.4°C | 16.1°C | 3.8°C | 65 mm | 89% | 1.5 m/s | 4.2 |
| 1994 | 14.6°C | 10.6°C | 6.5°C | 16.2°C | 4.5°C | 58 mm | 88% | 1.4 m/s | 4.5 |
| 1993 | 13.9°C | 10.0°C | 6.1°C | 15.3°C | 5.0°C | 62 mm | 89% | 1.5 m/s | 3.6 |
| 1992 | 14.1°C | 10.0°C | 5.9°C | 16.6°C | 3.5°C | 76 mm | 88% | 1.4 m/s | 4.3 |
| 1991 | 13.3°C | 10.0°C | 6.8°C | 14.9°C | 4.5°C | 206 mm | 92% | 1.4 m/s | 4 |
| 1990 | 13.8°C | 10.2°C | 6.6°C | 15.9°C | 4.4°C | 119 mm | 90% | 1.5 m/s | 3.6 |
| 1989 | 13.7°C | 10.2°C | 6.8°C | 15.8°C | 5.2°C | 131 mm | 91% | 1.5 m/s | 3.8 |
| 1988 | 14.0°C | 10.3°C | 6.7°C | 16.2°C | 4.1°C | 77 mm | 89% | 1.4 m/s | 3.7 |
| 1987 | 13.6°C | 10.2°C | 6.9°C | 15.1°C | 3.7°C | 158 mm | 91% | 1.4 m/s | 3.8 |
| 1986 | 13.2°C | 9.5°C | 5.7°C | 15.2°C | 3.2°C | 113 mm | 90% | 1.5 m/s | 4.1 |
| 1985 | 12.9°C | 9.5°C | 6.2°C | 15.7°C | 3.5°C | 134 mm | 91% | 1.5 m/s | 3.7 |
| 1984 ❄️ | 12.6°C | 9.1°C | 5.7°C | 14.7°C | 3.0°C | 172 mm | 89% | 1.5 m/s | 3.8 |
| 1983 | 13.8°C | 10.3°C | 6.9°C | 15.9°C | 4.2°C | 103 mm | 91% | 1.6 m/s | — |
| 1982 | 13.7°C | 9.9°C | 6.1°C | 16.0°C | 2.4°C | 104 mm | 88% | 1.4 m/s | — |
| 1981 | 12.9°C | 9.5°C | 6.2°C | 15.6°C | 3.7°C | 117 mm | 90% | 1.4 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 13.8°C with lows near 6.7°C (mean 10.3°C), based on 45 years of NASA POWER data.
September averages 148 mm of rainfall in Gyalshing, a relatively wet time of year. The wettest on record was 462 mm in 2024.
The hottest September reached 16.8°C in 2023. The coldest dipped to 1.4°C in 2000.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.2°C. Daytime highs moved from 13.2°C to 14.2°C and overnight lows from 6.2°C to 7.7°C over the same span.
September is one of the warmer months of the year in Gyalshing and a relatively wet time of year, so plan for around 13.8°C daytime highs and 6.7°C at night.
Not quite — September is the 9th coolest month in Gyalshing, averaging 10.3°C.
For September in Gyalshing, pack warm layers and a jacket for chilly mornings, with typical highs of 13.8°C and lows of 6.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 90% — quite humid.
Average wind speed in September is 1.4 m/s. The windiest September on record averaged 1.6 m/s (1983).
The wettest September on record was 2024 with 462 mm. On average, September sees 148 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 Gyalshing 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.
