July is one of the cooler months of the year in Kiama, with average highs near 13.3°C and lows around 5.8°C (mean 9.6°C). It is one of the drier months, averaging 63 mm of rainfall and 80% relative humidity across the period.
July is one of the cooler months of the year in Kiama. Across 45 years of records, the warmest July in Kiama was 2023 — when the month averaged 11.9°C — while the coldest was 1983 at 7.9°C. Typical July days reach 13.3°C with nights near 5.8°C. The long-term trend is warming, about 0.4°C per decade.
July is one of the drier months in Kiama, averaging 63 mm of rainfall. The wettest July on record was 2022 with 278 mm, while the driest was 2018 at 3 mm.
Relative humidity in Kiama during July averages 80%. The most humid July was 2022 at 88%, and the least humid was 2018 at 63%.
July receives about 2.7 kWh/m²/day of solar energy in Kiama. The sunniest Julys were 2017 and 2018 at 3.1 kWh/m²/day, and the cloudiest was 1984 at 1.8.
Average wind speed in Kiama during July is 0.6 m/s. The windiest Julys were 1984, 2011 and 2025 at 0.7 m/s, while the calmest were 1997, 2010 and 2013, among others at 0.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 8.7°C | 9.3°C | 9.8°C | 10.0°C | 10.3°C | +1.6°C |
| Avg High | 12.5°C | 12.9°C | 13.5°C | 13.9°C | 13.8°C | +1.3°C |
| Avg Low | 5.0°C | 5.6°C | 6.0°C | 6.1°C | 6.7°C | +1.7°C |
| Avg Rain | 67 mm | 68 mm | 55 mm | 41 mm | 100 mm | +33 mm |
July temperatures in Kiama have risen by about 1.8°C between 1981–1985 and 2021–2025.
July has ranged from a record low of -1°C (1986) to a record high of 22.5°C (2017).
Rainfall in July is one of the drier months, averaging 63 mm, with a wettest year of 278 mm.
A quieter season to visit Kiama
If your dates are flexible, the more temperate months of January and December tend to be the most comfortable for visiting Kiama. That said, July — with days averaging 13.3°C and nights around 5.8°C (mean 9.6°C) and moderate rainfall (63 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 13.1°C | 9.8°C | 6.5°C | 17.3°C | 2.6°C | 114 mm | 81% | 0.7 m/s | 2.5 |
| 2024 | 12.6°C | 9.6°C | 6.7°C | 16.5°C | 3.9°C | 37 mm | 83% | 0.6 m/s | 2.6 |
| 2023 🔥 | 16.9°C | 11.9°C | 7.0°C | 21.6°C | 1.6°C | 8 mm | 72% | 0.6 m/s | 3 |
| 2022 🌧️ | 12.4°C | 9.8°C | 7.2°C | 15.6°C | 2.6°C | 278 mm | 88% | 0.6 m/s | 2.4 |
| 2021 | 13.5°C | 9.7°C | 5.9°C | 20.0°C | 1.3°C | 18 mm | 76% | 0.6 m/s | 2.6 |
| 2020 | 14.4°C | 10.7°C | 7.0°C | 18.1°C | 2.9°C | 142 mm | 82% | 0.6 m/s | 2.6 |
| 2019 | 15.5°C | 11.1°C | 6.8°C | 20.0°C | 2.8°C | 14 mm | 69% | 0.6 m/s | 2.9 |
| 2018 | 15.8°C | 10.5°C | 5.1°C | 21.7°C | 0.4°C | 3 mm | 63% | 0.6 m/s | 3.1 |
| 2017 | 14.7°C | 10.1°C | 5.5°C | 22.5°C | 0.5°C | 12 mm | 69% | 0.6 m/s | 3.1 |
| 2016 | 13.9°C | 10.5°C | 7.0°C | 20.4°C | 3.5°C | 79 mm | 81% | 0.6 m/s | 2.7 |
| 2015 | 12.5°C | 8.6°C | 4.7°C | 16.0°C | 1.4°C | 35 mm | 81% | 0.6 m/s | 2.7 |
| 2014 | 14.6°C | 10.6°C | 6.6°C | 20.3°C | 2.8°C | 7 mm | 73% | 0.6 m/s | 2.8 |
| 2013 | 14.2°C | 10.4°C | 6.6°C | 18.5°C | 3.5°C | 26 mm | 83% | 0.5 m/s | 2.8 |
| 2012 | 12.8°C | 9.4°C | 5.9°C | 18.4°C | 1.7°C | 35 mm | 83% | 0.6 m/s | 2.8 |
| 2011 | 12.3°C | 9.2°C | 6.2°C | 16.0°C | 2.6°C | 129 mm | 81% | 0.7 m/s | 2.5 |
| 2010 | 13.0°C | 9.7°C | 6.3°C | 17.4°C | 3.6°C | 67 mm | 87% | 0.5 m/s | 2.5 |
| 2009 | 13.8°C | 10.1°C | 6.4°C | 20.1°C | 2.9°C | 38 mm | 75% | 0.6 m/s | 2.8 |
| 2008 | 13.4°C | 9.4°C | 5.4°C | 20.2°C | 2.7°C | 53 mm | 76% | 0.6 m/s | 2.7 |
| 2007 | 12.1°C | 8.7°C | 5.2°C | 17.1°C | 0.1°C | 39 mm | 82% | 0.6 m/s | 2.9 |
| 2006 | 13.0°C | 9.8°C | 6.5°C | 17.4°C | 2.3°C | 98 mm | 84% | 0.6 m/s | 2.5 |
| 2005 | 14.1°C | 10.1°C | 6.1°C | 16.9°C | 2.5°C | 38 mm | 80% | 0.6 m/s | 2.9 |
| 2004 | 14.0°C | 9.9°C | 5.9°C | 18.6°C | 1.9°C | 50 mm | 76% | 0.6 m/s | 2.6 |
| 2003 | 13.2°C | 9.5°C | 5.8°C | 17.6°C | 1.5°C | 38 mm | 82% | 0.6 m/s | 2.8 |
| 2002 | 14.8°C | 10.0°C | 5.2°C | 18.8°C | 1.5°C | 22 mm | 67% | 0.6 m/s | 2.9 |
| 2001 | 13.3°C | 10.6°C | 8.0°C | 17.2°C | 4.5°C | 131 mm | 86% | 0.6 m/s | 2.2 |
| 2000 | 13.5°C | 9.6°C | 5.7°C | 18.4°C | 1.6°C | 41 mm | 80% | 0.6 m/s | 2.8 |
| 1999 | 13.5°C | 10.1°C | 6.7°C | 16.4°C | 2.7°C | 176 mm | 84% | 0.6 m/s | 2.5 |
| 1998 | 12.4°C | 9.1°C | 5.7°C | 16.5°C | 1.2°C | 72 mm | 84% | 0.6 m/s | 2.5 |
| 1997 | 12.1°C | 8.8°C | 5.5°C | 16.3°C | 1.0°C | 45 mm | 85% | 0.5 m/s | 2.7 |
| 1996 | 12.9°C | 9.2°C | 5.5°C | 17.0°C | 2.1°C | 57 mm | 81% | 0.6 m/s | 2.6 |
| 1995 | 12.0°C | 8.1°C | 4.2°C | 15.0°C | 0.8°C | 16 mm | 78% | 0.6 m/s | 2.7 |
| 1994 | 13.8°C | 9.4°C | 4.9°C | 17.6°C | 0.4°C | 16 mm | 78% | 0.6 m/s | 2.9 |
| 1993 | 14.5°C | 10.8°C | 7.1°C | 17.8°C | 3.0°C | 74 mm | 84% | 0.5 m/s | 2.4 |
| 1992 | 13.4°C | 9.3°C | 5.3°C | 18.5°C | 1.9°C | 20 mm | 79% | 0.6 m/s | 2.9 |
| 1991 | 12.0°C | 8.7°C | 5.4°C | 15.0°C | 1.6°C | 108 mm | 85% | 0.6 m/s | 2.5 |
| 1990 | 12.4°C | 9.1°C | 5.7°C | 20.6°C | 2.8°C | 101 mm | 84% | 0.6 m/s | 2.7 |
| 1989 | 11.7°C | 8.3°C | 4.9°C | 17.4°C | 1.6°C | 44 mm | 85% | 0.6 m/s | 2.6 |
| 1988 | 13.9°C | 10.3°C | 6.6°C | 17.2°C | 3.4°C | 118 mm | 84% | 0.6 m/s | 2.8 |
| 1987 | 12.9°C | 8.8°C | 4.8°C | 16.6°C | 1.5°C | 80 mm | 81% | 0.6 m/s | 2.7 |
| 1986 | 13.6°C | 9.2°C | 4.9°C | 16.6°C | -1.0°C | 30 mm | 76% | 0.6 m/s | 2.8 |
| 1985 | 12.5°C | 8.8°C | 5.2°C | 16.4°C | 1.1°C | 58 mm | 81% | 0.6 m/s | 2.8 |
| 1984 | 11.5°C | 8.3°C | 5.1°C | 14.4°C | 1.5°C | 161 mm | 85% | 0.7 m/s | 1.8 |
| 1983 ❄️ | 11.9°C | 7.9°C | 4.0°C | 14.9°C | 0.6°C | 28 mm | 83% | 0.6 m/s | — |
| 1982 | 12.1°C | 8.5°C | 4.9°C | 15.2°C | 0.7°C | 42 mm | 79% | 0.6 m/s | — |
| 1981 | 12.5°C | 8.5°C | 4.5°C | 17.0°C | 1.2°C | 41 mm | 77% | 0.6 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 13.3°C with lows near 5.8°C (mean 9.6°C), based on 45 years of NASA POWER data.
July averages 63 mm of rainfall in Kiama, one of the drier months. The wettest on record was 278 mm in 2022.
The hottest July reached 22.5°C in 2017. The coldest dipped to -1°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.8°C. Daytime highs moved from 12.1°C to 13.7°C and overnight lows from 4.7°C to 6.7°C over the same span.
July is one of the cooler months of the year in Kiama and one of the drier months, so plan for around 13.3°C daytime highs and 5.8°C at night.
Yes — July is the coldest month of the year in Kiama, averaging 9.6°C.
For July in Kiama, pack warm layers and a jacket for chilly mornings, with typical highs of 13.3°C and lows of 5.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 80% — quite humid.
Average wind speed in July is 0.6 m/s. The windiest July on record averaged 0.7 m/s (1984).
The wettest July on record was 2022 with 278 mm. On average, July sees 63 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 Kiama behaves each July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
