October is one of the warmer months of the year in Atherton, with average highs near 28.4°C and lows around 17.6°C (mean 23°C). It is one of the drier months, averaging 59 mm of rainfall and 73% relative humidity across the period.
October is one of the warmer months of the year in Atherton. Across 45 years of records, the warmest October in Atherton was 2021 — when the month averaged 26.1°C — while the coldest was 2006 at 19.5°C. Typical October days reach 28.4°C with nights near 17.6°C. The long-term trend is warming, about 0.4°C per decade.
October is one of the drier months in Atherton, averaging 59 mm of rainfall. The wettest October on record was 2010 with 265 mm, while the driest was 2002 at 1 mm.
Relative humidity in Atherton during October averages 73%. The most humid October was 2010 at 89%, and the least humid was 2002 at 64%.
October receives about 6.6 kWh/m²/day of solar energy in Atherton. The sunniest October was 2014 at 7.4 kWh/m²/day, and the cloudiest was 2010 at 5.5.
Average wind speed in Atherton during October is 1.2 m/s. The windiest October was 2015 at 1.6 m/s, while the calmest was 1987 at 0.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 22.9°C | 22.2°C | 23.1°C | 22.9°C | 24.6°C | +1.7°C |
| Avg High | 28.5°C | 27.3°C | 28.6°C | 28.2°C | 30.4°C | +1.9°C |
| Avg Low | 17.3°C | 17.1°C | 17.6°C | 17.6°C | 18.8°C | +1.5°C |
| Avg Rain | 65 mm | 57 mm | 57 mm | 79 mm | 25 mm | -40 mm |
October temperatures in Atherton have risen by about 2.7°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 9.6°C (1982) to a record high of 38°C (2002).
Rainfall in October is one of the drier months, averaging 59 mm, with a wettest year of 265 mm.
One of the best times to visit Atherton
October is one of the best times to visit Atherton. Expect days averaging 28.4°C and nights around 17.6°C (mean 23°C) — warmer than Atherton's yearly average — with moderate rainfall (59 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 30.2°C | 24.5°C | 18.8°C | 36.0°C | 15.9°C | 45 mm | 72% | 1.2 m/s | 6.8 |
| 2024 | 29.8°C | 24.2°C | 18.6°C | 34.0°C | 16.4°C | 15 mm | 71% | 1.5 m/s | 7 |
| 2023 | 29.2°C | 23.2°C | 17.3°C | 33.8°C | 15.6°C | 17 mm | 69% | 1.4 m/s | 7.1 |
| 2022 | 30.9°C | 25.5°C | 20.2°C | 35.1°C | 17.3°C | 62 mm | 73% | 1.2 m/s | 6.4 |
| 2021 🔥 | 32.6°C | 26.1°C | 19.7°C | 35.9°C | 18.1°C | 6 mm | 66% | 1 m/s | 7.1 |
| 2020 | 29.7°C | 23.9°C | 18.1°C | 35.2°C | 16.0°C | 3 mm | 68% | 1.4 m/s | 6.8 |
| 2019 | 29.3°C | 23.4°C | 17.4°C | 35.5°C | 15.0°C | 19 mm | 68% | 1.4 m/s | 6.8 |
| 2018 | 31.1°C | 24.7°C | 18.2°C | 36.7°C | 13.3°C | 22 mm | 66% | 1.2 m/s | 7 |
| 2017 | 28.9°C | 23.8°C | 18.6°C | 34.6°C | 15.8°C | 81 mm | 74% | 1.2 m/s | 6.1 |
| 2016 | 28.9°C | 23.5°C | 18.1°C | 33.6°C | 15.1°C | 21 mm | 71% | 1.4 m/s | 6.8 |
| 2015 | 27.0°C | 22.0°C | 16.9°C | 31.7°C | 14.6°C | 34 mm | 72% | 1.6 m/s | 6.4 |
| 2014 | 27.8°C | 22.0°C | 16.2°C | 32.2°C | 13.6°C | 12 mm | 69% | 1.3 m/s | 7.4 |
| 2013 | 29.2°C | 23.5°C | 17.8°C | 33.7°C | 15.1°C | 27 mm | 71% | 1.3 m/s | 7 |
| 2012 | 27.5°C | 22.0°C | 16.5°C | 33.3°C | 14.5°C | 44 mm | 73% | 1.3 m/s | 6.4 |
| 2011 | 28.2°C | 23.0°C | 17.9°C | 36.1°C | 14.3°C | 260 mm | 74% | 1.1 m/s | 6.2 |
| 2010 🌧️ | 24.2°C | 21.2°C | 18.2°C | 25.4°C | 14.8°C | 265 mm | 89% | 1.3 m/s | 5.5 |
| 2009 | 29.1°C | 23.2°C | 17.3°C | 34.3°C | 14.0°C | 54 mm | 65% | 1.3 m/s | 6.5 |
| 2008 | 26.7°C | 22.2°C | 17.6°C | 28.6°C | 13.9°C | 65 mm | 78% | 1.5 m/s | 6.4 |
| 2007 | 28.3°C | 22.9°C | 17.5°C | 32.9°C | 14.8°C | 64 mm | 75% | 1.2 m/s | 6.5 |
| 2006 ❄️ | 23.7°C | 19.5°C | 15.4°C | 30.1°C | 13.0°C | 96 mm | 81% | 1.4 m/s | 6.7 |
| 2005 | 29.5°C | 24.0°C | 18.6°C | 34.1°C | 15.4°C | 54 mm | 74% | 1 m/s | 6.7 |
| 2004 | 29.9°C | 23.7°C | 17.5°C | 34.6°C | 15.1°C | 34 mm | 70% | 1.1 m/s | 7.1 |
| 2003 | 30.7°C | 24.7°C | 18.7°C | 37.3°C | 14.6°C | 30 mm | 67% | 1.1 m/s | 6.6 |
| 2002 | 30.7°C | 24.0°C | 17.3°C | 38.0°C | 15.1°C | 1 mm | 64% | 1.3 m/s | 7.2 |
| 2001 | 29.5°C | 23.8°C | 18.2°C | 33.3°C | 14.5°C | 78 mm | 72% | 1 m/s | 6.4 |
| 2000 | 27.8°C | 22.9°C | 17.9°C | 31.3°C | 14.9°C | 95 mm | 77% | 1.2 m/s | 5.6 |
| 1999 | 27.1°C | 22.4°C | 17.6°C | 30.3°C | 14.4°C | 42 mm | 79% | 1.2 m/s | 6.7 |
| 1998 | 27.4°C | 23.4°C | 19.5°C | 30.6°C | 16.1°C | 98 mm | 85% | 1 m/s | 5.9 |
| 1997 | 26.7°C | 21.4°C | 16.2°C | 31.5°C | 14.4°C | 35 mm | 75% | 1.2 m/s | 6.9 |
| 1996 | 25.9°C | 21.7°C | 17.6°C | 31.8°C | 15.1°C | 165 mm | 80% | 1.5 m/s | 6 |
| 1995 | 26.3°C | 21.6°C | 16.9°C | 30.9°C | 14.3°C | 112 mm | 81% | 1.2 m/s | 6.3 |
| 1994 | 27.6°C | 22.0°C | 16.3°C | 32.5°C | 14.2°C | 50 mm | 73% | 1.1 m/s | 7.1 |
| 1993 | 27.9°C | 22.2°C | 16.5°C | 34.2°C | 11.7°C | 23 mm | 74% | 1.1 m/s | 6.7 |
| 1992 | 26.9°C | 21.6°C | 16.4°C | 30.7°C | 14.1°C | 21 mm | 71% | 1.5 m/s | 6.7 |
| 1991 | 29.1°C | 22.9°C | 16.7°C | 34.6°C | 12.5°C | 4 mm | 64% | 1.4 m/s | 7.3 |
| 1990 | 27.8°C | 22.4°C | 16.9°C | 33.1°C | 13.2°C | 15 mm | 74% | 1.1 m/s | 6.9 |
| 1989 | 30.2°C | 23.8°C | 17.4°C | 34.3°C | 13.9°C | 55 mm | 69% | 1.1 m/s | 7 |
| 1988 | 28.6°C | 23.5°C | 18.3°C | 33.0°C | 15.6°C | 112 mm | 76% | 1.3 m/s | 6.8 |
| 1987 | 30.6°C | 24.3°C | 17.9°C | 36.1°C | 14.3°C | 22 mm | 69% | 0.9 m/s | 6.9 |
| 1986 | 29.6°C | 24.1°C | 18.6°C | 33.1°C | 15.8°C | 55 mm | 73% | 1 m/s | 6.1 |
| 1985 | 28.1°C | 22.7°C | 17.2°C | 35.0°C | 13.7°C | 122 mm | 74% | 1.1 m/s | 6.2 |
| 1984 | 27.9°C | 22.4°C | 17.0°C | 33.2°C | 15.4°C | 56 mm | 73% | 1.3 m/s | 6.2 |
| 1983 | 27.9°C | 22.9°C | 17.9°C | 32.9°C | 14.5°C | 38 mm | 76% | 1 m/s | — |
| 1982 | 27.3°C | 20.8°C | 14.4°C | 32.9°C | 9.6°C | 5 mm | 65% | 1.1 m/s | — |
| 1981 | 26.0°C | 21.4°C | 16.9°C | 32.3°C | 11.9°C | 119 mm | 78% | 1.2 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 28.4°C with lows near 17.6°C (mean 23°C), based on 45 years of NASA POWER data.
October averages 59 mm of rainfall in Atherton, one of the drier months. The wettest on record was 265 mm in 2010.
The hottest October reached 38°C in 2002. The coldest dipped to 9.6°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 2.7°C. Daytime highs moved from 27.4°C to 30.5°C and overnight lows from 16.7°C to 18.9°C over the same span.
October is one of the warmer months of the year in Atherton and one of the drier months, so plan for around 28.4°C daytime highs and 17.6°C at night.
Not quite — October is the 7th coolest month in Atherton, averaging 23°C.
For October in Atherton, pack light layers you can adjust through the day, with typical highs of 28.4°C and lows of 17.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 73% — moderately humid.
Average wind speed in October is 1.2 m/s. The windiest October on record averaged 1.6 m/s (2015).
The wettest October on record was 2010 with 265 mm. On average, October sees 59 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 Atherton behaves each October, 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 October specifically, along with year-by-year records and how the month has changed over the decades.
