September is one of the warmer months of the year in Morena, with average highs near 36°C and lows around 20.7°C (mean 28.4°C). It is a relatively wet time of year, averaging 121 mm of rainfall and 74% relative humidity across the period.
September is one of the warmer months of the year in Morena. Across 45 years of records, the warmest September in Morena was 1987 — when the month averaged 31.6°C — while the coldest was 1982 at 24.8°C. Typical September days reach 36°C with nights near 20.7°C. The long-term September temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.7°C | 27.8°C | 29.6°C | 27.4°C | 28.6°C | -0.1°C |
| Avg High | 36.7°C | 35.3°C | 38.1°C | 34.8°C | 35.0°C | -1.7°C |
| Avg Low | 20.7°C | 20.2°C | 21.0°C | 20.0°C | 22.2°C | +1.5°C |
| Avg Rain | 82 mm | 155 mm | 95 mm | 121 mm | 164 mm | +82 mm |
September temperatures in Morena have risen by about 0.5°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 15.9°C (1982) to a record high of 41.1°C (1987).
Rainfall in September is a relatively wet time of year, averaging 121 mm, with a wettest year of 327 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.3°C per decade while lows rose 0.3°C per decade, narrowing the gap between day and night.
A good time to visit Morena
September is a good time to visit Morena, with days averaging 36°C and nights around 20.7°C (mean 28.4°C, warmer than Morena'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 | 33.1°C | 21.3°C | 27.2°C | 208 mm | 85% | 1.8 m/s | 4.8 |
| 2024 | 33.1°C | 22.9°C | 28.0°C | 303 mm | 87% | 1.8 m/s | 4.1 |
| 2023 | 37.1°C | 20.3°C | 28.7°C | 136 mm | 78% | 1.8 m/s | 4.7 |
| 2022 | 34.5°C | 22.9°C | 28.7°C | 181 mm | 81% | 1.9 m/s | 4.3 |
| 2021 | 33.1°C | 23.2°C | 28.1°C | 124 mm | 87% | 2.5 m/s | 4.3 |
| 2020 | 39.1°C | 22.8°C | 31.0°C | 31 mm | 63% | 1.5 m/s | 5.2 |
| 2019 | 34.4°C | 22.4°C | 28.4°C | 207 mm | 86% | 1.5 m/s | 4 |
| 2018 | 32.3°C | 19.3°C | 25.8°C | 157 mm | 84% | 2.7 m/s | 4.5 |
| 2017 | 37.9°C | 20.3°C | 29.1°C | 66 mm | 64% | 1.5 m/s | 4.9 |
| 2016 | 34.3°C | 22.0°C | 28.1°C | 21 mm | 79% | 1.7 m/s | 5.2 |
| 2015 | 39.4°C | 18.9°C | 29.1°C | 80 mm | 57% | 2.2 m/s | 5.8 |
| 2014 | 36.9°C | 20.3°C | 28.6°C | 105 mm | 70% | 2.4 m/s | 5.1 |
| 2013 | 33.3°C | 21.6°C | 27.4°C | 66 mm | 80% | 1.8 m/s | 5.4 |
| 2012 | 32.7°C | 18.0°C | 25.3°C | 133 mm | 82% | 2 m/s | 4.9 |
| 2011 | 32.8°C | 19.6°C | 26.2°C | 131 mm | 85% | 2.2 m/s | 5.2 |
| 2010 | 33.7°C | 18.0°C | 25.8°C | 238 mm | 82% | 1.8 m/s | 4.6 |
| 2009 | 38.6°C | 21.2°C | 29.9°C | 168 mm | 70% | 1.9 m/s | 5.2 |
| 2008 | 35.7°C | 19.9°C | 27.8°C | 143 mm | 81% | 1.7 m/s | 5.2 |
| 2007 | 38.2°C | 22.0°C | 30.1°C | 62 mm | 64% | 1.9 m/s | 5.2 |
| 2006 | 38.7°C | 21.6°C | 30.2°C | 43 mm | 60% | 2 m/s | 5.5 |
| 2005 | 40.7°C | 22.0°C | 31.3°C | 99 mm | 68% | 2.5 m/s | 4.8 |
| 2004 | 38.7°C | 21.6°C | 30.1°C | 81 mm | 66% | 1.9 m/s | 5.4 |
| 2003 | 35.0°C | 21.1°C | 28.1°C | 161 mm | 82% | 1.3 m/s | 3.9 |
| 2002 | 36.5°C | 18.6°C | 27.5°C | 151 mm | 72% | 1.8 m/s | 5.1 |
| 2001 | 39.6°C | 21.4°C | 30.5°C | 16 mm | 52% | 1.8 m/s | 5.7 |
| 2000 | 39.7°C | 20.5°C | 30.1°C | 24 mm | 52% | 1.9 m/s | 5.5 |
| 1999 | 35.8°C | 22.4°C | 29.1°C | 142 mm | 81% | 1.4 m/s | 4.5 |
| 1998 | 36.4°C | 23.4°C | 29.9°C | 140 mm | 78% | 1.9 m/s | 5.4 |
| 1997 | 38.0°C | 20.9°C | 29.5°C | 102 mm | 69% | 2.1 m/s | 4.9 |
| 1996 | 34.5°C | 19.1°C | 26.8°C | 156 mm | 80% | 1.7 m/s | 5.4 |
| 1995 | 33.9°C | 18.3°C | 26.1°C | 218 mm | 80% | 1.9 m/s | 5.5 |
| 1994 | 34.4°C | 16.7°C | 25.5°C | 29 mm | 74% | 2.3 m/s | 5.9 |
| 1993 🌧️ | 35.7°C | 21.8°C | 28.8°C | 327 mm | 80% | 1.9 m/s | 4.7 |
| 1992 | 33.8°C | 18.2°C | 26.0°C | 155 mm | 77% | 2 m/s | 5.3 |
| 1991 | 34.2°C | 18.6°C | 26.4°C | 38 mm | 76% | 2.1 m/s | 5.4 |
| 1990 | 35.9°C | 22.9°C | 29.4°C | 242 mm | 81% | 2.1 m/s | 4.6 |
| 1989 | 37.8°C | 21.8°C | 29.8°C | 110 mm | 67% | 1.8 m/s | 5.7 |
| 1988 | 37.8°C | 20.9°C | 29.3°C | 39 mm | 73% | 2.3 m/s | 5.7 |
| 1987 🔥 | 41.1°C | 22.2°C | 31.6°C | 64 mm | 50% | 2.1 m/s | 5.4 |
| 1986 | 39.1°C | 19.8°C | 29.4°C | 66 mm | 57% | 2.3 m/s | 5.8 |
| 1985 | 34.9°C | 20.0°C | 27.5°C | 85 mm | 79% | 2.3 m/s | 5.3 |
| 1984 | 33.2°C | 20.4°C | 26.8°C | 125 mm | 78% | 1.8 m/s | 5.4 |
| 1983 | 33.7°C | 22.9°C | 28.3°C | 171 mm | 84% | 1.9 m/s | — |
| 1982 ❄️ | 33.7°C | 15.9°C | 24.8°C | 16 mm | 77% | 2.1 m/s | — |
| 1981 | 38.6°C | 22.8°C | 30.7°C | 65 mm | 66% | 2.2 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 36°C with lows near 20.7°C (mean 28.4°C), based on 45 years of NASA POWER data.
September averages 121 mm of rainfall in Morena, a relatively wet time of year. The wettest on record was 327 mm in 1993.
The hottest September reached 41.1°C in 1987. The coldest dipped to 15.9°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.5°C. Daytime highs moved from 34.8°C to 34.2°C and overnight lows from 20.4°C to 22.1°C over the same span.
September is one of the warmer months of the year in Morena and a relatively wet time of year, so plan for around 36°C daytime highs and 20.7°C at night.
Not quite — September is the 7th coolest month in Morena, averaging 28.4°C.
For September in Morena, pack light, breathable clothing and sun protection, with typical highs of 36°C and lows of 20.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 74% — moderately humid.
Average wind speed in September is 2 m/s. The windiest September on record averaged 2.7 m/s (2018).
The wettest September on record was 1993 with 327 mm. On average, September sees 121 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 Morena 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.
