September is one of the warmer months of the year in Morena, with average highs near 33.3°C and lows around 23.8°C (mean 28.6°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 31.7°C — while the coldest were 1982 and 2018 at 26.7°C. Typical September days reach 33.3°C with nights near 23.8°C. The long-term September temperature trend is broadly flat.
September is a relatively wet time of year in Morena, averaging 121 mm of rainfall. The wettest September on record was 1993 with 327 mm, while the driest were 1982 and 2001 at 16 mm.
Relative humidity in Morena during September averages 74%. The most humid September was 2021 at 87%, and the least humid was 1987 at 50%.
September receives about 5.1 kWh/m²/day of solar energy in Morena. The sunniest September was 1994 at 5.9 kWh/m²/day, and the cloudiest was 2003 at 3.9.
Average wind speed in Morena during September is 2 m/s. The windiest September was 2018 at 2.7 m/s, while the calmest was 2003 at 1.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.8°C | 27.9°C | 29.5°C | 28.1°C | 28.6°C | -0.2°C |
| Avg High | 33.9°C | 32.4°C | 34.9°C | 32.6°C | 32.4°C | -1.5°C |
| Avg Low | 23.6°C | 23.4°C | 24.2°C | 23.6°C | 24.8°C | +1.2°C |
| Avg Rain | 82 mm | 155 mm | 95 mm | 121 mm | 164 mm | +82 mm |
September temperatures in Morena have risen by about 0.4°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 0.2°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 33.3°C and nights around 23.8°C (mean 28.6°C, warmer than Morena's yearly average) and higher rainfall. November and February are marginally more temperate, but September still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 31.1°C | 27.6°C | 24.1°C | 33.1°C | 21.3°C | 208 mm | 85% | 1.8 m/s | 4.8 |
| 2024 | 31.0°C | 27.9°C | 24.8°C | 33.1°C | 22.9°C | 303 mm | 87% | 1.8 m/s | 4.1 |
| 2023 | 32.8°C | 28.7°C | 24.6°C | 37.1°C | 20.3°C | 136 mm | 78% | 1.8 m/s | 4.7 |
| 2022 | 32.2°C | 28.4°C | 24.7°C | 34.5°C | 22.9°C | 181 mm | 81% | 1.9 m/s | 4.3 |
| 2021 | 31.2°C | 28.0°C | 24.7°C | 33.1°C | 23.2°C | 124 mm | 87% | 2.5 m/s | 4.3 |
| 2020 | 36.3°C | 31.0°C | 25.7°C | 39.1°C | 22.8°C | 31 mm | 63% | 1.5 m/s | 5.2 |
| 2019 | 31.1°C | 28.0°C | 24.9°C | 34.4°C | 22.4°C | 207 mm | 86% | 1.5 m/s | 4 |
| 2018 | 30.7°C | 26.7°C | 22.7°C | 32.3°C | 19.3°C | 157 mm | 84% | 2.7 m/s | 4.5 |
| 2017 | 35.0°C | 29.7°C | 24.3°C | 37.9°C | 20.3°C | 66 mm | 64% | 1.5 m/s | 4.9 |
| 2016 | 32.4°C | 28.1°C | 23.7°C | 34.3°C | 22.0°C | 21 mm | 79% | 1.7 m/s | 5.2 |
| 2015 | 36.4°C | 30.2°C | 23.9°C | 39.4°C | 18.9°C | 80 mm | 57% | 2.2 m/s | 5.8 |
| 2014 | 34.3°C | 28.7°C | 23.1°C | 36.9°C | 20.3°C | 105 mm | 70% | 2.4 m/s | 5.1 |
| 2013 | 31.8°C | 27.6°C | 23.5°C | 33.3°C | 21.6°C | 66 mm | 80% | 1.8 m/s | 5.4 |
| 2012 | 31.2°C | 27.1°C | 22.9°C | 32.7°C | 18.0°C | 133 mm | 82% | 2 m/s | 4.9 |
| 2011 | 31.3°C | 27.4°C | 23.5°C | 32.8°C | 19.6°C | 131 mm | 85% | 2.2 m/s | 5.2 |
| 2010 | 31.3°C | 27.6°C | 23.9°C | 33.7°C | 18.0°C | 238 mm | 82% | 1.8 m/s | 4.6 |
| 2009 | 34.7°C | 29.3°C | 23.9°C | 38.6°C | 21.2°C | 168 mm | 70% | 1.9 m/s | 5.2 |
| 2008 | 31.9°C | 27.6°C | 23.4°C | 35.7°C | 19.9°C | 143 mm | 81% | 1.7 m/s | 5.2 |
| 2007 | 35.4°C | 30.2°C | 25.1°C | 38.2°C | 22.0°C | 62 mm | 64% | 1.9 m/s | 5.2 |
| 2006 | 36.4°C | 30.6°C | 24.8°C | 38.7°C | 21.6°C | 43 mm | 60% | 2 m/s | 5.5 |
| 2005 | 34.7°C | 29.8°C | 24.9°C | 40.7°C | 22.0°C | 99 mm | 68% | 2.5 m/s | 4.8 |
| 2004 | 35.2°C | 29.3°C | 23.5°C | 38.7°C | 21.6°C | 81 mm | 66% | 1.9 m/s | 5.4 |
| 2003 | 31.6°C | 28.0°C | 24.4°C | 35.0°C | 21.1°C | 161 mm | 82% | 1.3 m/s | 3.9 |
| 2002 | 33.3°C | 28.0°C | 22.6°C | 36.5°C | 18.6°C | 151 mm | 72% | 1.8 m/s | 5.1 |
| 2001 | 37.8°C | 31.0°C | 24.2°C | 39.6°C | 21.4°C | 16 mm | 52% | 1.8 m/s | 5.7 |
| 2000 | 38.0°C | 31.4°C | 24.9°C | 39.7°C | 20.5°C | 24 mm | 52% | 1.9 m/s | 5.5 |
| 1999 | 32.1°C | 28.2°C | 24.3°C | 35.8°C | 22.4°C | 142 mm | 81% | 1.4 m/s | 4.5 |
| 1998 | 33.2°C | 29.0°C | 24.9°C | 36.4°C | 23.4°C | 140 mm | 78% | 1.9 m/s | 5.4 |
| 1997 | 34.4°C | 29.0°C | 23.6°C | 38.0°C | 20.9°C | 102 mm | 69% | 2.1 m/s | 4.9 |
| 1996 | 31.9°C | 27.4°C | 22.9°C | 34.5°C | 19.1°C | 156 mm | 80% | 1.7 m/s | 5.4 |
| 1995 | 31.6°C | 27.2°C | 22.7°C | 33.9°C | 18.3°C | 218 mm | 80% | 1.9 m/s | 5.5 |
| 1994 | 32.5°C | 27.3°C | 22.1°C | 34.4°C | 16.7°C | 29 mm | 74% | 2.3 m/s | 5.9 |
| 1993 🌧️ | 31.6°C | 27.8°C | 24.0°C | 35.7°C | 21.8°C | 327 mm | 80% | 1.9 m/s | 4.7 |
| 1992 | 31.7°C | 26.9°C | 22.2°C | 33.8°C | 18.2°C | 155 mm | 77% | 2 m/s | 5.3 |
| 1991 | 32.6°C | 27.5°C | 22.4°C | 34.2°C | 18.6°C | 38 mm | 76% | 2.1 m/s | 5.4 |
| 1990 | 32.0°C | 28.2°C | 24.4°C | 35.9°C | 22.9°C | 242 mm | 81% | 2.1 m/s | 4.6 |
| 1989 | 34.3°C | 29.2°C | 24.0°C | 37.8°C | 21.8°C | 110 mm | 67% | 1.8 m/s | 5.7 |
| 1988 | 34.6°C | 29.5°C | 24.5°C | 37.8°C | 20.9°C | 39 mm | 73% | 2.3 m/s | 5.7 |
| 1987 🔥 | 38.4°C | 31.7°C | 25.0°C | 41.1°C | 22.2°C | 64 mm | 50% | 2.1 m/s | 5.4 |
| 1986 | 36.3°C | 29.9°C | 23.4°C | 39.1°C | 19.8°C | 66 mm | 57% | 2.3 m/s | 5.8 |
| 1985 | 31.8°C | 27.3°C | 22.8°C | 34.9°C | 20.0°C | 85 mm | 79% | 2.3 m/s | 5.3 |
| 1984 | 31.2°C | 26.9°C | 22.7°C | 33.2°C | 20.4°C | 125 mm | 78% | 1.8 m/s | 5.4 |
| 1983 | 31.6°C | 28.0°C | 24.4°C | 33.7°C | 22.9°C | 171 mm | 84% | 1.9 m/s | — |
| 1982 ❄️ | 31.9°C | 26.7°C | 21.4°C | 33.7°C | 15.9°C | 16 mm | 77% | 2.1 m/s | — |
| 1981 | 35.4°C | 29.8°C | 24.1°C | 38.6°C | 22.8°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 33.3°C with lows near 23.8°C (mean 28.6°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 0.4°C — but days and nights have moved in opposite directions. Overnight lows rose from 23.1°C to 24.6°C while daytime highs eased from 32.4°C to 31.7°C, narrowing the gap between day and night.
September is one of the warmer months of the year in Morena and a relatively wet time of year, so plan for around 33.3°C daytime highs and 23.8°C at night.
Not quite — September is the 7th coolest month in Morena, averaging 28.6°C.
For September in Morena, pack light, breathable clothing and sun protection, with typical highs of 33.3°C and lows of 23.8°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.
