September
September · August · May
Australia · 1991–2020
September leads for comfortable weather in Upper Coomera: typically 24°C by day, 14.8°C at night, with 42 mm of rain. Based on measured 1991–2020 NOAA station history.
September · August · May
January · March · November
July · August · September
The weakest month is February, scoring 41 against September’s 96 — 204 mm of rain falls, and days average 28.8°C, 5° above the 24°C the score treats as ideal.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 28.9°C | 21.9°C | 148 mm | 9.3 | 26.2°C | 13 h 44 | 50 | Strong coverage |
| February | 28.8°C | 21.8°C | 204 mm | 11.2 | 26.6°C | 13 h 06 | 41 | Strong coverage |
| March | 28°C | 20.9°C | 138 mm | 11.4 | 26.3°C | 12 h 20 | 54 | Strong coverage |
| April | 26°C | 18.3°C | 122 mm | 8.9 | 25.3°C | 11 h 28 | 70 | Strong coverage |
| May | 23.6°C | 15.4°C | 102 mm | 8.7 | 23.9°C | 10 h 45 | 84 | Strong coverage |
| June | 21.4°C | 13.3°C | 104 mm | 7.4 | 22.6°C | 10 h 23 | 75 | Strong coverage |
| July | 21.3°C | 12°C | 52 mm | 5.2 | 21.6°C | 10 h 32 | 81 | Strong coverage |
| August | 22.1°C | 12.4°C | 57 mm | 4.4 | 21.2°C | 11 h 08 | 85 | Strong coverage |
| September | 24°C | 14.8°C | 42 mm | 5.3 | 21.6°C | 11 h 58 | 96 | Strong coverage |
| October | 25.4°C | 16.9°C | 87 mm | 6.5 | 22.6°C | 12 h 48 | 81 | Strong coverage |
| November | 26.9°C | 19°C | 108 mm | 8.3 | 23.9°C | 13 h 32 | 68 | Strong coverage |
| December | 28°C | 20.6°C | 142 mm | 9.4 | 25.2°C | 13 h 54 | 56 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 38.5°C12 Jan 2002 | 16.7°C19 Jan 2018 | 255 mm18 Jan 2020 | 400 mm2012 · driest 4 mm in 2019 | 34 |
| February | 40.5°C21 Feb 2004 | 17.2°C1 Feb 2004 | 178 mm13 Feb 2020 | 631 mm2020 · driest 17 mm in 2005 | 34 |
| March | 36.3°C1 Mar 1993 | 12.8°C28 Mar 2026 | 307 mm29 Mar 2022 | 545 mm2025 · driest 13 mm in 1998 | 34 |
| April | 33.3°C4 Apr 2006 | 8.9°C29 Apr 2008 | 183 mm29 Apr 2012 | 386 mm2009 · driest 13 mm in 2007 | 35 |
| May | 29.4°C4 May 2007 | 6.6°C29 May 2004 | 126 mm15 May 2003 | 344 mm2026 · driest 16 mm in 2018 | 35 |
| June | 27.7°C21 Jun 2000 | 3.8°C21 Jun 2004 | 129 mm5 Jun 2016 | 307 mm1999 · driest 12 mm in 2010 | 35 |
| July | 28.9°C23 Jul 2016 | 2.5°C19 Jul 2007 | 101 mm1 Jul 2005 | 172 mm1999 · driest 1 mm in 2007 | 35 |
| August | 32.4°C25 Aug 2009 | 4.2°C10 Aug 2008 | 144 mm29 Aug 1999 | 204 mm1999 · driest 0 mm in 1997 | 34 |
| September | 33.0°C10 Sep 2003 | 7.9°C2 Sep 2015 | 87 mm12 Sep 1998 | 164 mm1998 · driest 0 mm in 2017 | 33 |
| October | 38.0°C27 Oct 2025 | 9.4°C18 Oct 2016 | 127 mm8 Oct 1997 | 374 mm2010 · driest 2 mm in 2014 | 33 |
| November | 35.5°C28 Nov 1995 | 8.2°C17 Nov 2006 | 150 mm7 Nov 2004 | 441 mm2008 · driest 0 mm in 2019 | 33 |
| December | 39.4°C26 Dec 2001 | 14.7°C19 Dec 2005 | 112 mm27 Dec 2010 | 490 mm2010 · driest 21 mm in 2013 | 33 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 30 | 9 | 3 |
| February | 27 | 8 | 4 |
| March | 29 | 5 | 3 |
| April | 21 | 1 | 3 |
| May | 7 | 0 | 3 |
| June | 1 | 0 | 3 |
| July | 1 | 0 | 1 |
| August | 4 | <1 | 1 |
| September | 11 | <1 | 1 |
| October | 17 | 2 | 3 |
| November | 23 | 3 | 3 |
| December | 27 | 6 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 67% | 33% | 13% | 43% | 27.1–30.3°C |
| February | 60% | 39% | 16% | 50% | 27.3–30.4°C |
| March | 61% | 39% | 13% | 49% | 27.0–29.0°C |
| April | 68% | 32% | 11% | 40% | 24.6–27.4°C |
| May | 68% | 30% | 10% | 35% | 22.7–24.6°C |
| June | 65% | 23% | 9% | 25% | 20.5–22.5°C |
| July | 67% | 19% | 6% | 17% | 20.1–22.2°C |
| August | 77% | 15% | 5% | 17% | 20.8–23.6°C |
| September | 79% | 18% | 4% | 14% | 22.2–25.4°C |
| October | 79% | 21% | 9% | 22% | 23.3–27.2°C |
| November | 71% | 29% | 11% | 38% | 25.5–28.1°C |
| December | 69% | 31% | 15% | 38% | 26.1–29.2°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page