September is close to Weipa's year-round average, with average highs near 32.8°C and lows around 21.6°C (mean 27.2°C). It is one of the drier months, averaging 3 mm of rainfall and 66% relative humidity across the period.
September is close to Weipa's year-round average. Across 45 years of records, the warmest Septembers in Weipa were 1988 and 1992 — when the month averaged 28.8°C — while the coldest was 1982 at 25.4°C. Typical September days reach 32.8°C with nights near 21.6°C. The long-term September temperature trend is broadly flat.
September is one of the drier months in Weipa, averaging 3 mm of rainfall. The wettest September on record was 2016 with 14 mm, while the driest were 1999, 2001 and 2009, among others at 0 mm.
Relative humidity in Weipa during September averages 66%. The most humid September was 2010 at 73%, and the least humid was 2018 at 61%.
September receives about 6.5 kWh/m²/day of solar energy in Weipa. The sunniest Septembers were 1999, 2015 and 2018, among others at 6.8 kWh/m²/day, and the cloudiest was 2010 at 5.9.
Average wind speed in Weipa during September is 4.4 m/s. The windiest Septembers were 1981 and 2021 at 5.5 m/s, while the calmest was 2002 at 3.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.2°C | 27.0°C | 27.2°C | 27.2°C | 27.6°C | +0.4°C |
| Avg High | 32.7°C | 32.9°C | 33.0°C | 32.8°C | 32.9°C | +0.2°C |
| Avg Low | 21.8°C | 21.0°C | 21.4°C | 21.6°C | 22.4°C | +0.6°C |
| Avg Rain | 6 mm | 2 mm | 2 mm | 4 mm | 5 mm | -1 mm |
September temperatures in Weipa have risen by about 0.7°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 17.7°C (1994) to a record high of 37.2°C (1988).
Rainfall in September is one of the drier months, averaging 3 mm, with a wettest year of 14 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A good time to visit Weipa
September is a good time to visit Weipa, with days averaging 32.8°C and nights around 21.6°C (mean 27.2°C, close to Weipa's yearly average) and low rainfall. July and June 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 | 32.9°C | 27.7°C | 22.5°C | 35.4°C | 20.0°C | 6 mm | 69% | 4.4 m/s | 6.3 |
| 2024 | 32.8°C | 27.7°C | 22.6°C | 35.7°C | 21.2°C | 4 mm | 69% | 4.8 m/s | 6 |
| 2023 | 32.5°C | 26.9°C | 21.4°C | 34.7°C | 18.5°C | 1 mm | 65% | 5.1 m/s | 6.5 |
| 2022 | 33.3°C | 28.4°C | 23.5°C | 34.7°C | 21.5°C | 11 mm | 72% | 4.1 m/s | 6.4 |
| 2021 | 32.2°C | 27.2°C | 22.3°C | 34.4°C | 20.3°C | 4 mm | 69% | 5.5 m/s | 6.1 |
| 2020 | 33.7°C | 28.0°C | 22.3°C | 36.2°C | 20.2°C | 2 mm | 65% | 5.4 m/s | 6.4 |
| 2019 | 31.8°C | 25.9°C | 19.9°C | 34.4°C | 17.7°C | 1 mm | 64% | 4.6 m/s | 6.7 |
| 2018 | 33.6°C | 27.4°C | 21.2°C | 34.9°C | 19.8°C | 0 mm | 61% | 4.4 m/s | 6.8 |
| 2017 | 32.7°C | 27.3°C | 22.0°C | 34.7°C | 19.6°C | 1 mm | 67% | 4.7 m/s | 6.1 |
| 2016 🌧️ | 33.4°C | 28.2°C | 23.1°C | 36.1°C | 20.9°C | 14 mm | 69% | 4.2 m/s | 6.3 |
| 2015 | 32.8°C | 27.1°C | 21.3°C | 33.9°C | 20.2°C | 3 mm | 62% | 3.9 m/s | 6.8 |
| 2014 | 32.7°C | 26.6°C | 20.6°C | 34.4°C | 19.0°C | 3 mm | 64% | 4 m/s | 6.7 |
| 2013 | 33.3°C | 27.5°C | 21.7°C | 36.1°C | 19.4°C | 2 mm | 64% | 4.4 m/s | 6.5 |
| 2012 | 32.9°C | 27.0°C | 21.2°C | 35.0°C | 19.9°C | 2 mm | 65% | 4 m/s | 6.5 |
| 2011 | 31.9°C | 26.6°C | 21.3°C | 34.3°C | 19.0°C | 2 mm | 67% | 4.5 m/s | 6 |
| 2010 | 32.4°C | 28.0°C | 23.7°C | 33.6°C | 21.2°C | 12 mm | 73% | 5.2 m/s | 5.9 |
| 2009 | 33.2°C | 27.6°C | 22.1°C | 35.0°C | 20.2°C | 0 mm | 64% | 3.8 m/s | 6.5 |
| 2008 | 33.6°C | 28.0°C | 22.3°C | 35.6°C | 20.4°C | 5 mm | 65% | 4.4 m/s | 6.5 |
| 2007 | 33.4°C | 27.1°C | 20.8°C | 35.3°C | 18.2°C | 0 mm | 63% | 4 m/s | 6.7 |
| 2006 | 30.7°C | 25.5°C | 20.3°C | 32.4°C | 17.8°C | 3 mm | 71% | 4.4 m/s | 6.4 |
| 2005 | 33.3°C | 27.4°C | 21.4°C | 35.0°C | 18.5°C | 0 mm | 63% | 4 m/s | 6.3 |
| 2004 | 32.3°C | 26.7°C | 21.0°C | 33.5°C | 19.1°C | 0 mm | 64% | 4.4 m/s | 6.5 |
| 2003 | 34.0°C | 27.8°C | 21.6°C | 37.2°C | 19.1°C | 0 mm | 62% | 4 m/s | 6.6 |
| 2002 | 32.9°C | 27.1°C | 21.4°C | 35.5°C | 18.8°C | 6 mm | 63% | 3.6 m/s | 6.6 |
| 2001 | 33.3°C | 27.6°C | 21.9°C | 34.9°C | 20.1°C | 0 mm | 66% | 4.4 m/s | 6.7 |
| 2000 | 32.8°C | 27.1°C | 21.4°C | 34.9°C | 19.6°C | 1 mm | 67% | 4.2 m/s | 6.6 |
| 1999 | 31.8°C | 26.0°C | 20.2°C | 33.2°C | 18.3°C | 0 mm | 68% | 4.2 m/s | 6.8 |
| 1998 | 34.3°C | 28.7°C | 23.1°C | 36.0°C | 19.7°C | 4 mm | 65% | 4.8 m/s | 6.4 |
| 1997 | 32.9°C | 26.8°C | 20.7°C | 35.6°C | 19.3°C | 1 mm | 63% | 4.3 m/s | 6.7 |
| 1996 | 32.8°C | 26.9°C | 21.0°C | 34.7°C | 18.4°C | 1 mm | 64% | 3.8 m/s | 6.6 |
| 1995 | 32.9°C | 27.0°C | 21.1°C | 35.4°C | 19.6°C | 1 mm | 66% | 4.3 m/s | 6.4 |
| 1994 | 32.1°C | 26.1°C | 20.0°C | 35.4°C | 17.7°C | 0 mm | 62% | 3.7 m/s | 6.6 |
| 1993 | 32.8°C | 26.7°C | 20.6°C | 34.8°C | 19.2°C | 1 mm | 63% | 4.7 m/s | 6.8 |
| 1992 | 34.8°C | 28.8°C | 22.8°C | 36.7°C | 20.6°C | 11 mm | 63% | 3.7 m/s | 6.5 |
| 1991 | 32.7°C | 26.5°C | 20.2°C | 35.3°C | 18.0°C | 0 mm | 62% | 3.7 m/s | 6.3 |
| 1990 | 31.9°C | 26.2°C | 20.6°C | 33.4°C | 19.4°C | 1 mm | 62% | 4.7 m/s | 6.5 |
| 1989 | 32.4°C | 26.9°C | 21.4°C | 34.9°C | 19.1°C | 5 mm | 70% | 4.2 m/s | 6.4 |
| 1988 🔥 | 34.1°C | 28.8°C | 23.6°C | 37.2°C | 21.5°C | 10 mm | 65% | 5.2 m/s | 6.1 |
| 1987 | 32.2°C | 27.0°C | 21.7°C | 33.8°C | 19.2°C | 12 mm | 66% | 5 m/s | 6.2 |
| 1986 | 33.5°C | 27.9°C | 22.4°C | 36.6°C | 19.1°C | 8 mm | 62% | 3.8 m/s | 6.5 |
| 1985 | 31.8°C | 26.3°C | 20.8°C | 34.2°C | 18.1°C | 2 mm | 70% | 3.8 m/s | 6.4 |
| 1984 | 33.0°C | 27.7°C | 22.4°C | 34.4°C | 21.0°C | 10 mm | 67% | 3.9 m/s | 6.3 |
| 1983 | 33.8°C | 27.9°C | 21.9°C | 35.5°C | 18.9°C | 2 mm | 66% | 4.9 m/s | — |
| 1982 ❄️ | 31.2°C | 25.4°C | 19.6°C | 34.2°C | 18.0°C | 2 mm | 66% | 4.1 m/s | — |
| 1981 | 32.5°C | 27.3°C | 22.1°C | 34.7°C | 20.1°C | 4 mm | 65% | 5.5 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 32.8°C with lows near 21.6°C (mean 27.2°C), based on 45 years of NASA POWER data.
September averages 3 mm of rainfall in Weipa, one of the drier months. The wettest on record was 14 mm in 2016.
The hottest September reached 37.2°C in 1988. The coldest dipped to 17.7°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.7°C. Daytime highs moved from 32.5°C to 32.7°C and overnight lows from 21.4°C to 22.5°C over the same span.
September is close to Weipa's year-round average and one of the drier months, so plan for around 32.8°C daytime highs and 21.6°C at night.
Not quite — September is the 6th coolest month in Weipa, averaging 27.2°C.
For September in Weipa, pack light, breathable clothing and sun protection, with typical highs of 32.8°C and lows of 21.6°C.
Relative humidity in September averages 66% — moderately humid.
Average wind speed in September is 4.4 m/s. The windiest September on record averaged 5.5 m/s (1981).
The wettest September on record was 2016 with 14 mm. On average, September sees 3 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 Weipa 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.
