September is one of the warmer months of the year in Sanchor, with average highs near 39.7°C and lows around 22.6°C (mean 31.2°C). It is a relatively wet time of year, averaging 60 mm of rainfall and 59% relative humidity across the period.
September is one of the warmer months of the year in Sanchor. Across 45 years of records, the warmest September in Sanchor was 1999 — when the month averaged 34.1°C — while the coldest were 2010 and 2011 at 27.7°C. Typical September days reach 39.7°C with nights near 22.6°C. The long-term trend is cooling, about 0.4°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 32.0°C | 31.4°C | 31.8°C | 29.9°C | 30.5°C | -1.5°C |
| Avg High | 41.0°C | 40.0°C | 40.9°C | 38.0°C | 38.0°C | -3°C |
| Avg Low | 22.9°C | 22.7°C | 22.8°C | 21.8°C | 23.0°C | +0.1°C |
| Avg Rain | 21 mm | 62 mm | 27 mm | 98 mm | 107 mm | +86 mm |
September temperatures in Sanchor have fallen by about 1.2°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 19.7°C (1994) to a record high of 43.2°C (1999).
Rainfall in September is a relatively wet time of year, averaging 60 mm, with a wettest year of 240 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.8°C per decade while lows fell 0.1°C per decade, narrowing the gap between day and night.
A good time to visit Sanchor
September is a good time to visit Sanchor, with days averaging 39.7°C and nights around 22.6°C (mean 31.2°C, warmer than Sanchor's yearly average) and moderate rainfall. February and December are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 37.7°C | 22.6°C | 30.2°C | 71 mm | 74% | 2.7 m/s | 5 |
| 2024 | 39.0°C | 22.8°C | 30.9°C | 117 mm | 74% | 2.6 m/s | 5 |
| 2023 | 39.7°C | 22.6°C | 31.1°C | 127 mm | 68% | 2.6 m/s | 5.4 |
| 2022 | 35.6°C | 22.5°C | 29.1°C | 65 mm | 77% | 2.3 m/s | 5.7 |
| 2021 | 37.7°C | 25.0°C | 31.4°C | 160 mm | 72% | 2.3 m/s | 4.5 |
| 2020 | 38.2°C | 22.4°C | 30.3°C | 102 mm | 77% | 2 m/s | 5.5 |
| 2019 | 37.7°C | 23.3°C | 30.5°C | 106 mm | 77% | 1.9 m/s | 4.8 |
| 2018 | 41.1°C | 22.4°C | 31.8°C | 18 mm | 53% | 2.8 m/s | 5.4 |
| 2017 | 36.8°C | 21.5°C | 29.2°C | 25 mm | 70% | 2.2 m/s | 5.5 |
| 2016 | 39.0°C | 21.9°C | 30.4°C | 5 mm | 65% | 2.4 m/s | 6 |
| 2015 | 40.0°C | 20.3°C | 30.2°C | 50 mm | 58% | 2.3 m/s | 5.9 |
| 2014 | 37.2°C | 22.0°C | 29.6°C | 98 mm | 67% | 2.7 m/s | 5.4 |
| 2013 | 42.5°C | 23.3°C | 32.9°C | 109 mm | 59% | 2.4 m/s | 5.5 |
| 2012 🌧️ | 35.6°C | 21.7°C | 28.6°C | 240 mm | 74% | 2 m/s | 5.1 |
| 2011 | 34.2°C | 21.1°C | 27.7°C | 145 mm | 80% | 2.6 m/s | 5.2 |
| 2010 ❄️ | 35.4°C | 20.0°C | 27.7°C | 183 mm | 71% | 1.9 m/s | 5.4 |
| 2009 | 43.0°C | 22.5°C | 32.7°C | 4 mm | 54% | 2.8 m/s | 6.4 |
| 2008 | 39.4°C | 21.9°C | 30.6°C | 40 mm | 59% | 2.5 m/s | 5.8 |
| 2007 | 40.9°C | 23.0°C | 31.9°C | 37 mm | 60% | 2.5 m/s | 5.9 |
| 2006 | 36.1°C | 22.1°C | 29.1°C | 58 mm | 79% | 1.9 m/s | 5.7 |
| 2005 | 42.6°C | 23.1°C | 32.8°C | 72 mm | 57% | 2.4 m/s | 5.5 |
| 2004 | 41.1°C | 23.2°C | 32.2°C | 29 mm | 55% | 2.5 m/s | 5.9 |
| 2003 | 39.6°C | 22.6°C | 31.1°C | 6 mm | 65% | 2.8 m/s | 5.5 |
| 2002 | 41.1°C | 22.0°C | 31.6°C | 22 mm | 42% | 2.9 m/s | 6.1 |
| 2001 | 42.7°C | 23.9°C | 33.3°C | 6 mm | 39% | 2.2 m/s | 6 |
| 2000 | 42.1°C | 23.3°C | 32.7°C | 2 mm | 43% | 2.9 m/s | 5.8 |
| 1999 🔥 | 43.2°C | 24.9°C | 34.1°C | 7 mm | 40% | 2.9 m/s | 6 |
| 1998 | 40.6°C | 24.4°C | 32.5°C | 117 mm | 58% | 2.8 m/s | 5.6 |
| 1997 | 39.4°C | 22.9°C | 31.1°C | 45 mm | 60% | 2.6 m/s | 5.9 |
| 1996 | 40.3°C | 23.3°C | 31.8°C | 16 mm | 49% | 2.5 m/s | 6.2 |
| 1995 | 42.1°C | 23.8°C | 32.9°C | 13 mm | 42% | 2.4 m/s | 6.3 |
| 1994 | 36.4°C | 19.7°C | 28.0°C | 151 mm | 69% | 2.2 m/s | 5.6 |
| 1993 | 41.2°C | 23.8°C | 32.5°C | 52 mm | 49% | 2.6 m/s | 6.2 |
| 1992 | 37.4°C | 19.8°C | 28.6°C | 129 mm | 62% | 2.2 m/s | 5.7 |
| 1991 | 40.6°C | 22.0°C | 31.3°C | 5 mm | 46% | 3.2 m/s | 6 |
| 1990 | 39.1°C | 22.8°C | 31.0°C | 90 mm | 65% | 2.7 m/s | 5.9 |
| 1989 | 40.0°C | 22.0°C | 31.0°C | 4 mm | 53% | 2.6 m/s | 6.3 |
| 1988 | 40.4°C | 24.6°C | 32.5°C | 43 mm | 60% | 2.7 m/s | 6.2 |
| 1987 | 42.8°C | 23.0°C | 32.9°C | 0 mm | 40% | 3.1 m/s | 6.3 |
| 1986 | 42.2°C | 23.4°C | 32.8°C | 0 mm | 37% | 2.3 m/s | 6.5 |
| 1985 | 41.3°C | 22.8°C | 32.0°C | 5 mm | 42% | 3 m/s | 6.3 |
| 1984 | 40.4°C | 21.5°C | 30.9°C | 51 mm | 56% | 2.6 m/s | 5.9 |
| 1983 | 41.3°C | 23.3°C | 32.3°C | 24 mm | 55% | 2.3 m/s | — |
| 1982 | 40.0°C | 21.3°C | 30.6°C | 1 mm | 50% | 2.8 m/s | — |
| 1981 | 40.8°C | 24.3°C | 32.6°C | 60 mm | 62% | 2.4 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 39.7°C with lows near 22.6°C (mean 31.2°C), based on 45 years of NASA POWER data.
September averages 60 mm of rainfall in Sanchor, a relatively wet time of year. The wettest on record was 240 mm in 2012.
The hottest September reached 43.2°C in 1999. The coldest dipped to 19.7°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have fallen by about 1.2°C. Daytime highs moved from 40.8°C to 37.9°C and overnight lows from 22.6°C to 23.1°C over the same span.
September is one of the warmer months of the year in Sanchor and a relatively wet time of year, so plan for around 39.7°C daytime highs and 22.6°C at night.
Not quite — September is the 7th coolest month in Sanchor, averaging 31.2°C.
For September in Sanchor, pack light, breathable clothing and sun protection, with typical highs of 39.7°C and lows of 22.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 59% — moderately humid.
Average wind speed in September is 2.5 m/s. The windiest September on record averaged 3.2 m/s (1991).
The wettest September on record was 2012 with 240 mm. On average, September sees 60 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 Sanchor 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.
