October
Other strong months: November and December
87/100 weather score
Australia · 1991–2020
Best time to visit
Hamilton
For Hamilton, October has the most comfortable weather in our climate comparison. Typical daytime highs are 22.5°C, nights average 15°C, and rainfall totals about 64 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Best all-round monthOctober
Typical daytime high22.5°C
Typical night-time low15°C
October rainfall64 mm
January
Other strong months: December and February
76/100 weather score
August
Other strong months: September and July
91/100 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 Hamilton
June has the lowest comfort score at 54 out of 100, compared with October at 87. The main reason is that days reach only 18.3°C, 6° below the 24°C the score treats as ideal, and 129 mm of rain falls.
Quick answers
Planning a trip to Hamilton?
These answers come from the same measured monthly climate record shown on this page.
When is the best time to visit Hamilton?
October is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 22.5°C and 64 mm of rain.
What is the hottest month in Hamilton?
January is hottest in this record, with a typical daytime high of 25.6°C and a night-time low of 20.1°C.
Which month has the least rain?
August has the lowest monthly rainfall total at 50 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 | 25.6°C | 20.1°C | 72 mm | 7.2 | 22.6°C | 14 h 06 | 77 | Strong coverage |
| February | 25.5°C | 20.1°C | 110 mm | 8 | 23.1°C | 13 h 19 | 71 | Strong coverage |
| March | 24.8°C | 18.8°C | 114 mm | 9 | 23.0°C | 12 h 23 | 74 | Strong coverage |
| April | 23.3°C | 15.9°C | 111 mm | 8.4 | 22.3°C | 11 h 19 | 81 | Strong coverage |
| May | 20.7°C | 12.7°C | 118 mm | 9 | 21.1°C | 10 h 27 | 68 | Strong coverage |
| June | 18.3°C | 10.6°C | 129 mm | 9.4 | 19.8°C | 9 h 59 | 54 | Strong coverage |
| July | 17.8°C | 9.4°C | 71 mm | 7.9 | 18.8°C | 10 h 10 | 60 | Strong coverage |
| August | 19°C | 10.1°C | 50 mm | 5.6 | 18.3°C | 10 h 55 | 70 | Strong coverage |
| September | 21.1°C | 12.6°C | 59 mm | 6.4 | 18.4°C | 11 h 56 | 80 | Strong coverage |
| October | 22.5°C | 15°C | 64 mm | 7.1 | 19.1°C | 12 h 58 | 87 | Strong coverage |
| November | 23.3°C | 16.8°C | 80 mm | 8.5 | 20.1°C | 13 h 52 | 83 | Strong coverage |
| December | 24.6°C | 18.7°C | 67 mm | 7.8 | 21.2°C | 14 h 19 | 82 | Strong coverage |
What has changed
Recent daytime highs are
1.1°C warmer in Hamilton.
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
+1.2
Feb
+1.1
Mar
+1.0
Apr
+0.8
May
+0.8
Jun
+0.6
Jul
+1.2
Aug
+1.2
Sep
+1.6
Oct
+1.4
Nov
+1.3
Dec
+0.8
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 39.6°C23 Jan 2010 | 12.0°C30 Jan 1977 | 201 mm6 Jan 2016 | 404 mm2016 · driest 2 mm in 1985 | 69 |
| February | 38.6°C1 Feb 2011 | 10.3°C26 Feb 1964 | 252 mm3 Feb 1990 | 559 mm1990 · driest 10 mm in 1987 | 70 |
| March | 38.0°C19 Mar 2002 | 11.1°C24 Mar 1967 | 106 mm22 Mar 1992 | 337 mm1963 · driest 3 mm in 1965 | 70 |
| April | 36.8°C5 Apr 1986 | 7.4°C29 Apr 1990 | 143 mm28 Apr 1963 | 338 mm1999 · driest 4 mm in 1996 | 70 |
| May | 28.5°C1 May 2013 | 4.7°C29 May 1964 | 107 mm6 May 2024 | 441 mm2001 · driest 3 mm in 2021 | 69 |
| June | 26.1°C5 Jun 1958 | 3.0°C13 Jun 1975 | 210 mm9 Jun 2007 | 496 mm2007 · driest 1 mm in 2001 | 70 |
| July | 26.3°C24 Jul 1990 | 1.8°C27 Jul 1986 | 81 mm4 Jul 1997 | 269 mm1997 · driest 0 mm in 1970 | 69 |
| August | 29.9°C23 Aug 1995 | 3.3°C24 Aug 1962 | 108 mm2 Aug 1990 | 290 mm2025 · driest 0 mm in 2005 | 68 |
| September | 34.4°C26 Sep 1965 | 5.0°C1 Sep 1958 | 69 mm10 Sep 2006 | 196 mm1970 · driest 1 mm in 2003 | 68 |
| October | 36.7°C29 Oct 1988 | 6.5°C1 Oct 1982 | 86 mm19 Oct 1976 | 200 mm1959 · driest 5 mm in 1971 | 69 |
| November | 40.6°C29 Nov 2020 | 7.2°C8 Nov 1971 | 124 mm18 Nov 2013 | 244 mm2013 · driest 12 mm in 1962 | 69 |
| December | 40.0°C1 Dec 2004 | 11.0°C14 Dec 1977 | 85 mm23 Dec 1991 | 225 mm1971 · driest 5 mm in 2019 | 69 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 15 | 3 | 2 |
| February | 14 | 2 | 3 |
| March | 13 | 2 | 3 |
| April | 8 | <1 | 3 |
| May | 2 | 0 | 4 |
| June | 0 | 0 | 4 |
| July | <1 | 0 | 2 |
| August | 1 | 0 | 1 |
| September | 5 | <1 | 2 |
| October | 7 | 3 | 2 |
| November | 7 | 3 | 2 |
| December | 11 | 3 | 2 |
The best month has moved. On the 1961–1990 numbers the strongest month here was December (scoring 88); on 2011–2025 it is October (91). 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 | 73% | 26% | 9% | 31% | 23.8–26.3°C |
| February | 70% | 29% | 10% | 36% | 23.7–26.5°C |
| March | 68% | 30% | 11% | 37% | 23.4–25.6°C |
| April | 66% | 31% | 11% | 39% | 21.8–24.1°C |
| May | 44% | 29% | 11% | 36% | 19.1–21.5°C |
| June | 13% | 31% | 11% | 37% | 16.8–19.1°C |
| July | 12% | 27% | 9% | 33% | 16.0–18.4°C |
| August | 24% | 24% | 7% | 27% | 17.1–19.7°C |
| September | 43% | 24% | 7% | 29% | 18.6–22.2°C |
| October | 54% | 26% | 7% | 30% | 20.3–23.9°C |
| November | 63% | 26% | 7% | 31% | 21.6–24.8°C |
| December | 73% | 25% | 7% | 26% | 22.8–26.2°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 10103847
- NOAA station
- ASN00061055 · NEWCASTLE NOBBYS SIGNAL STATIO
- Station distance
- 4.8 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 29 usable years
- Daylight
- Calculated from latitude -32.92°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Sea temperature
- NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 13 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 Hamilton 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.
How travel partnerships will work