October
Other strong months: November and April
88/100 weather score
Australia · 1991–2020
Best time to visit
Sydney
For Sydney, October has the most comfortable weather in our climate comparison. Typical daytime highs are 23.2°C, nights average 14.6°C, and rainfall totals about 68 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Best all-round monthOctober
Typical daytime high23.2°C
Typical night-time low14.6°C
October rainfall68 mm
January
Other strong months: December and February
76/100 weather score
August
Other strong months: September and July
87/100 weather score
Make the answer personal
Choose the weather
that suits you.
Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.
6 months fit your choices for Sydney
June has the lowest comfort score at 51 out of 100, compared with October at 88. The main reason is that days reach only 18.2°C, 6° below the 24°C the score treats as ideal, and 143 mm of rain falls.
Quick answers
Planning a trip to Sydney?
These answers come from the same measured monthly climate record shown on this page.
When is the best time to visit Sydney?
October is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 23.2°C and 68 mm of rain.
What is the hottest month in Sydney?
January is hottest in this record, with a typical daytime high of 27°C and a night-time low of 20°C.
Which month has the least rain?
September has the lowest monthly rainfall total at 63 mm.
Is this a weather forecast?
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
See how the weather
changes through the year.
The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 27°C | 20°C | 91 mm | 8.2 | 22.8°C | 14 h 10 | 69 | Strong coverage |
| February | 26.8°C | 19.9°C | 131 mm | 9 | 23.4°C | 13 h 22 | 63 | Strong coverage |
| March | 25.7°C | 18.4°C | 118 mm | 10.1 | 23.2°C | 12 h 24 | 70 | Strong coverage |
| April | 23.6°C | 15.3°C | 114 mm | 7.9 | 22.3°C | 11 h 18 | 83 | Strong coverage |
| May | 20.9°C | 12.3°C | 101 mm | 7.9 | 21.0°C | 10 h 23 | 71 | Strong coverage |
| June | 18.2°C | 10°C | 143 mm | 9.3 | 19.6°C | 9 h 55 | 51 | Strong coverage |
| July | 17.9°C | 8.9°C | 80 mm | 7.2 | 18.6°C | 10 h 06 | 59 | Strong coverage |
| August | 19.3°C | 9.7°C | 75 mm | 5.6 | 18.1°C | 10 h 52 | 67 | Strong coverage |
| September | 21.6°C | 12.3°C | 63 mm | 5.8 | 18.3°C | 11 h 56 | 81 | Strong coverage |
| October | 23.2°C | 14.6°C | 68 mm | 7.6 | 19.2°C | 13 h | 88 | Strong coverage |
| November | 24.2°C | 16.6°C | 91 mm | 8.7 | 20.1°C | 13 h 56 | 84 | Strong coverage |
| December | 25.7°C | 18.4°C | 73 mm | 7.9 | 21.4°C | 14 h 24 | 78 | Strong coverage |
What has changed
Recent daytime highs are
1.2°C warmer in Sydney.
Each bar shows the difference between the 2011–2025 average daytime high and the 1961–1990 average for the same month at the same station. A blank month does not have enough older observations for a reliable comparison.
Jan
+1.7
Feb
+1.0
Mar
+1.0
Apr
+0.9
May
+1.2
Jun
+0.7
Jul
+1.5
Aug
+1.3
Sep
+1.6
Oct
+1.6
Nov
+1.5
Dec
+0.8
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 43.4°C7 Jan 2018 | 10.6°C18 Jan 1949 | 191 mm17 Jan 1988 | 387 mm1911 · driest 6 mm in 1985 | 162 |
| February | 42.1°C8 Feb 1926 | 9.6°C28 Feb 1863 | 244 mm3 Feb 1990 | 631 mm1990 · driest 3 mm in 1939 | 162 |
| March | 39.8°C9 Mar 1983 | 9.3°C14 Mar 1886 | 281 mm28 Mar 1942 | 521 mm1942 · driest 8 mm in 1965 | 162 |
| April | 35.4°C9 Apr 2018 | 7.0°C27 Apr 1864 | 191 mm29 Apr 1860 | 622 mm1861 · driest 1 mm in 1868 | 162 |
| May | 30.0°C1 May 1919 | 4.4°C30 May 1862 | 212 mm28 May 1889 | 585 mm1919 · driest 3 mm in 2008 | 162 |
| June | 26.9°C11 Jun 1931 | 2.1°C22 Jun 1932 | 151 mm11 Jun 1991 | 643 mm1950 · driest 4 mm in 1962 | 162 |
| July | 26.5°C30 Jul 2017 | 2.2°C8 Jul 1861 | 198 mm7 Jul 1931 | 336 mm1950 · driest 2 mm in 1970 | 162 |
| August | 31.3°C26 Aug 1995 | 2.7°C3 Aug 1872 | 328 mm6 Aug 1986 | 483 mm1998 · driest 0 mm in 1995 | 162 |
| September | 34.6°C26 Sep 1965 | 4.9°C2 Sep 1945 | 145 mm10 Sep 1879 | 356 mm1879 · driest 0 mm in 2017 | 161 |
| October | 38.2°C13 Oct 2004 | 5.7°C6 Oct 1927 | 162 mm13 Oct 1902 | 285 mm1987 · driest 1 mm in 1988 | 161 |
| November | 41.8°C25 Nov 1982 | 7.9°C27 Nov 1864 | 235 mm9 Nov 1984 | 517 mm1961 · driest 2 mm in 1915 | 161 |
| December | 42.2°C20 Dec 1957 | 9.1°C3 Dec 1924 | 126 mm9 Dec 1970 | 402 mm1920 · driest 2 mm in 2019 | 161 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 22 | 4 | 3 |
| February | 21 | 3 | 3 |
| March | 19 | 2 | 4 |
| April | 9 | <1 | 3 |
| May | 2 | 0 | 3 |
| June | <1 | 0 | 4 |
| July | <1 | 0 | 2 |
| August | 1 | 0 | 2 |
| September | 5 | 1 | 2 |
| October | 8 | 2 | 2 |
| November | 10 | 3 | 3 |
| December | 17 | 4 | 2 |
The best month has moved. On the 1961–1990 numbers the strongest month here was November (scoring 86); on 2011–2025 it is October (96). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | 72% | 28% | 9% | 33% | 24.3–27.4°C |
| February | 68% | 32% | 11% | 41% | 24.5–27.3°C |
| March | 67% | 32% | 11% | 40% | 23.6–26.2°C |
| April | 61% | 30% | 11% | 36% | 21.0–24.2°C |
| May | 35% | 28% | 10% | 33% | 17.8–21.2°C |
| June | 9% | 29% | 12% | 36% | 15.4–18.5°C |
| July | 8% | 24% | 9% | 27% | 14.6–18.0°C |
| August | 20% | 23% | 7% | 25% | 16.1–19.5°C |
| September | 40% | 24% | 6% | 26% | 18.3–21.9°C |
| October | 57% | 26% | 7% | 28% | 20.6–24.0°C |
| November | 66% | 28% | 8% | 34% | 22.0–25.4°C |
| December | 73% | 26% | 7% | 27% | 23.6–26.8°C |
A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.
The evidence behind this page
Where these figures
come from.
- Place identity
- GeoNames 2147714
- NOAA station
- ASN00066062 · SYDNEY (OBSERVATORY HILL)
- Station distance
- 0.8 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 29 usable years
- Daylight
- Calculated from latitude -33.87°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Sea temperature
- NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 16 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Sydney is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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