January
January · December · February
Australia · 1991–2020
January leads for comfortable weather in Blue Mountains: typically 24.2°C by day, 13.5°C at night, with 148 mm of rain. Based on measured 1991–2020 NOAA station history.
January · December · February
January · December · February
April · October · November
The weakest month is June, scoring 22 against January’s 72 — days reach only 11°C, 13° below 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 | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 24.2°C | 13.5°C | 148 mm | 12.7 | 14 h 10 | 72 | Strong coverage |
| February | 22.9°C | 13.4°C | 213 mm | 12.3 | 13 h 21 | 60 | Strong coverage |
| March | 20.7°C | 11.7°C | 165 mm | 12.1 | 12 h 24 | 57 | Strong coverage |
| April | 17.8°C | 9°C | 87 mm | 8.3 | 11 h 18 | 57 | Strong coverage |
| May | 14.1°C | 6.3°C | 81 mm | 7 | 10 h 24 | 41 | Strong coverage |
| June | 11°C | 4.1°C | 106 mm | 8.5 | 9 h 56 | 22 | Strong coverage |
| July | 10.5°C | 3°C | 58 mm | 7.4 | 10 h 07 | 27 | Strong coverage |
| August | 12.2°C | 3.4°C | 66 mm | 6.6 | 10 h 53 | 33 | Strong coverage |
| September | 15.6°C | 5.8°C | 64 mm | 7.1 | 11 h 56 | 48 | Strong coverage |
| October | 18.5°C | 8°C | 91 mm | 8.6 | 12 h 59 | 56 | Strong coverage |
| November | 20.6°C | 10°C | 132 mm | 12.3 | 13 h 55 | 58 | Strong coverage |
| December | 22.6°C | 11.9°C | 115 mm | 11.3 | 14 h 23 | 71 | Strong coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 39.8°C4 Jan 2020 | 4.2°C12 Jan 2012 | 220 mm18 Jan 2026 | 493 mm1974 · driest 14 mm in 1985 | 63 |
| February | 37.7°C11 Feb 2017 | 3.9°C29 Feb 2008 | 226 mm10 Feb 2020 | 603 mm2020 · driest 20 mm in 1979 | 63 |
| March | 34.8°C19 Mar 2023 | -0.1°C17 Mar 2009 | 285 mm20 Mar 1978 | 619 mm2022 · driest 13 mm in 1965 | 63 |
| April | 29.6°C11 Apr 2018 | -0.5°C27 Apr 1978 | 153 mm4 Apr 1981 | 598 mm1988 · driest 4 mm in 2021 | 63 |
| May | 22.9°C14 May 2016 | -5.1°C30 May 2021 | 143 mm23 May 2025 | 320 mm1977 · driest 3 mm in 1957 | 62 |
| June | 19.4°C5 Jun 2002 | -3.4°C30 Jun 1977 | 233 mm21 Jun 1975 | 445 mm1964 · driest 1 mm in 1962 | 62 |
| July | 18.8°C26 Jul 1975 | -5.4°C26 Jul 1986 | 207 mm3 Jul 2022 | 589 mm2022 · driest 2 mm in 2023 | 63 |
| August | 22.0°C21 Aug 1995 | -5.6°C2 Aug 1976 | 276 mm6 Aug 1986 | 581 mm1986 · driest 1 mm in 1995 | 63 |
| September | 28.6°C23 Sep 2017 | -2.8°C6 Sep 1995 | 104 mm25 Sep 1995 | 211 mm1982 · driest 1 mm in 1957 | 63 |
| October | 31.2°C21 Oct 1988 | -1.0°C17 Oct 1984 | 111 mm18 Oct 1965 | 420 mm1985 · driest 9 mm in 1988 | 63 |
| November | 36.0°C26 Nov 1997 | -0.1°C20 Nov 1986 | 142 mm19 Nov 1961 | 430 mm1961 · driest 11 mm in 1982 | 62 |
| December | 39.5°C21 Dec 2019 | 2.4°C5 Dec 2011 | 92 mm12 Dec 1991 | 307 mm1991 · driest 1 mm in 2019 | 62 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 14 | 5 | 0 | 4 |
| February | 9 | 3 | 0 | 5 |
| March | 5 | <1 | 0 | 5 |
| April | <1 | 0 | 0 | 3 |
| May | 0 | 0 | <1 | 2 |
| June | 0 | 0 | 2 | 3 |
| July | 0 | 0 | 4 | 2 |
| August | 0 | 0 | 4 | 1 |
| September | <1 | 0 | 1 | 2 |
| October | 3 | 0 | <1 | 3 |
| November | 7 | 1 | 0 | 4 |
| December | 10 | 3 | 0 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 52% | 37% | 15% | 48% | 20.8–25.9°C |
| February | 49% | 40% | 17% | 53% | 20.1–24.9°C |
| March | 42% | 37% | 15% | 45% | 18.2–22.4°C |
| April | 23% | 29% | 11% | 33% | 15.3–19.0°C |
| May | 2% | 25% | 9% | 28% | 12.4–15.1°C |
| June | 0% | 27% | 10% | 32% | 9.1–12.0°C |
| July | 0% | 24% | 7% | 26% | 8.4–11.2°C |
| August | <1% | 23% | 6% | 23% | 9.9–13.6°C |
| September | 13% | 25% | 6% | 26% | 12.6–16.9°C |
| October | 30% | 27% | 9% | 32% | 15.4–20.1°C |
| November | 41% | 32% | 11% | 41% | 17.5–23.5°C |
| December | 53% | 33% | 12% | 42% | 20.0–25.1°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