July is one of the warmer months of the year in Westbury, with average highs near 21.6°C and lows around 12.3°C (mean 17°C). It is about average for rainfall, averaging 59 mm of rainfall and 78% relative humidity across the period.
July is one of the warmer months of the year in Westbury. Across 45 years of records, the warmest July in Westbury was 2006 — when the month averaged 19.7°C — while the coldest was 1988 at 14.6°C. Typical July days reach 21.6°C with nights near 12.3°C. The long-term July temperature trend is broadly flat.
July is about average for rainfall in Westbury, averaging 59 mm of rainfall. The wettest July on record was 2007 with 152 mm, while the driest was 2022 at 15 mm.
Relative humidity in Westbury during July averages 78%. The most humid July was 2007 at 84%, and the least humid was 1990 at 68%.
July receives about 5.1 kWh/m²/day of solar energy in Westbury. The sunniest July was 2013 at 6.1 kWh/m²/day, and the cloudiest was 2023 at 4.4.
Average wind speed in Westbury during July is 3.1 m/s. The windiest July was 1988 at 4.1 m/s, while the calmest was 1983 at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.7°C | 17.0°C | 16.5°C | 17.2°C | 17.3°C | +0.6°C |
| Avg High | 21.4°C | 21.9°C | 20.9°C | 21.8°C | 21.9°C | +0.5°C |
| Avg Low | 12.0°C | 12.1°C | 12.2°C | 12.5°C | 12.8°C | +0.8°C |
| Avg Rain | 49 mm | 46 mm | 78 mm | 58 mm | 65 mm | +16 mm |
July temperatures in Westbury have risen by about 0.6°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 6.4°C (1996) to a record high of 33.8°C (2022).
Rainfall in July is about average for rainfall, averaging 59 mm, with a wettest year of 152 mm.
One of the best times to visit Westbury
July is one of the best times to visit Westbury. Expect days averaging 21.6°C and nights around 12.3°C (mean 17°C) — warmer than Westbury'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 | 24.0°C | 19.0°C | 13.9°C | 31.2°C | 10.7°C | 39 mm | 73% | 2.9 m/s | 5.6 |
| 2024 | 20.9°C | 16.5°C | 12.2°C | 28.4°C | 9.4°C | 77 mm | 81% | 2.8 m/s | 5 |
| 2023 | 20.0°C | 16.1°C | 12.3°C | 25.0°C | 9.4°C | 113 mm | 81% | 3.9 m/s | 4.4 |
| 2022 | 24.0°C | 18.5°C | 13.1°C | 33.8°C | 9.5°C | 15 mm | 72% | 2.7 m/s | 5.4 |
| 2021 | 22.2°C | 17.9°C | 13.6°C | 28.5°C | 10.9°C | 87 mm | 81% | 2.6 m/s | 5.3 |
| 2020 | 20.5°C | 16.1°C | 11.7°C | 29.0°C | 8.1°C | 60 mm | 79% | 3.5 m/s | 4.8 |
| 2019 | 22.5°C | 17.8°C | 13.1°C | 30.0°C | 8.9°C | 47 mm | 78% | 2.7 m/s | 5.5 |
| 2018 | 24.8°C | 19.3°C | 13.8°C | 29.0°C | 11.3°C | 31 mm | 72% | 2.5 m/s | 5.8 |
| 2017 | 21.4°C | 17.1°C | 12.7°C | 27.5°C | 9.7°C | 110 mm | 78% | 3.2 m/s | 5 |
| 2016 | 20.7°C | 16.5°C | 12.3°C | 29.0°C | 9.0°C | 34 mm | 82% | 3.2 m/s | 4.9 |
| 2015 | 20.7°C | 16.2°C | 11.6°C | 28.1°C | 7.6°C | 81 mm | 77% | 3.6 m/s | 4.9 |
| 2014 | 22.5°C | 17.6°C | 12.6°C | 26.9°C | 9.2°C | 35 mm | 77% | 2.7 m/s | 5.8 |
| 2013 | 24.1°C | 18.7°C | 13.3°C | 29.4°C | 9.4°C | 46 mm | 75% | 2.7 m/s | 6.1 |
| 2012 | 19.1°C | 15.2°C | 11.2°C | 25.9°C | 8.6°C | 101 mm | 83% | 3.1 m/s | 4.8 |
| 2011 | 20.3°C | 15.8°C | 11.2°C | 23.9°C | 7.8°C | 56 mm | 75% | 2.8 m/s | 4.9 |
| 2010 | 21.7°C | 17.3°C | 12.9°C | 25.2°C | 10.8°C | 40 mm | 77% | 3.5 m/s | 4.7 |
| 2009 | 20.0°C | 16.1°C | 12.1°C | 28.4°C | 9.0°C | 109 mm | 80% | 3.9 m/s | 4.7 |
| 2008 | 20.4°C | 16.1°C | 11.8°C | 26.9°C | 7.9°C | 79 mm | 81% | 3.5 m/s | 4.8 |
| 2007 🌧️ | 18.6°C | 15.0°C | 11.5°C | 21.6°C | 8.1°C | 152 mm | 84% | 3.7 m/s | 4.7 |
| 2006 🔥 | 25.3°C | 19.7°C | 14.0°C | 33.1°C | 9.9°C | 56 mm | 72% | 2.7 m/s | 5.9 |
| 2005 | 22.0°C | 17.5°C | 13.0°C | 28.2°C | 9.3°C | 67 mm | 77% | 3 m/s | 4.9 |
| 2004 | 20.2°C | 15.8°C | 11.5°C | 24.8°C | 8.5°C | 57 mm | 79% | 3.1 m/s | 4.7 |
| 2003 | 21.7°C | 17.3°C | 12.9°C | 30.2°C | 10.2°C | 64 mm | 80% | 3.1 m/s | 4.5 |
| 2002 | 19.8°C | 15.5°C | 11.3°C | 24.3°C | 8.4°C | 79 mm | 82% | 2.9 m/s | 4.8 |
| 2001 | 21.4°C | 16.8°C | 12.3°C | 27.9°C | 6.9°C | 65 mm | 79% | 2.9 m/s | 4.7 |
| 2000 | 19.4°C | 15.4°C | 11.4°C | 23.9°C | 8.5°C | 56 mm | 82% | 2.6 m/s | 5 |
| 1999 | 22.5°C | 17.4°C | 12.4°C | 28.0°C | 8.2°C | 18 mm | 77% | 3 m/s | 5.9 |
| 1998 | 19.2°C | 15.4°C | 11.5°C | 21.9°C | 8.6°C | 47 mm | 82% | 3.6 m/s | 4.7 |
| 1997 | 21.9°C | 17.0°C | 12.1°C | 25.4°C | 8.0°C | 34 mm | 76% | 2.7 m/s | 5.4 |
| 1996 | 21.6°C | 16.4°C | 11.2°C | 27.8°C | 6.4°C | 38 mm | 76% | 2.9 m/s | 5.5 |
| 1995 | 24.1°C | 18.7°C | 13.2°C | 30.2°C | 9.1°C | 33 mm | 74% | 3 m/s | 5.2 |
| 1994 | 22.8°C | 17.6°C | 12.5°C | 27.0°C | 9.7°C | 31 mm | 77% | 2.6 m/s | 5.9 |
| 1993 | 19.6°C | 15.4°C | 11.2°C | 23.2°C | 7.1°C | 64 mm | 80% | 3.6 m/s | 5.1 |
| 1992 | 21.5°C | 17.0°C | 12.4°C | 26.2°C | 9.5°C | 95 mm | 78% | 3.1 m/s | 4.6 |
| 1991 | 21.6°C | 17.1°C | 12.5°C | 26.7°C | 10.5°C | 69 mm | 79% | 3.4 m/s | 5 |
| 1990 | 23.9°C | 18.0°C | 12.2°C | 31.4°C | 6.8°C | 34 mm | 68% | 3.3 m/s | 5.9 |
| 1989 | 24.4°C | 18.8°C | 13.2°C | 30.5°C | 9.3°C | 41 mm | 71% | 2.9 m/s | 5.7 |
| 1988 ❄️ | 18.2°C | 14.6°C | 11.0°C | 21.0°C | 9.4°C | 89 mm | 82% | 4.1 m/s | 4.5 |
| 1987 | 20.8°C | 16.3°C | 11.8°C | 26.6°C | 7.8°C | 45 mm | 78% | 2.9 m/s | 4.7 |
| 1986 | 20.3°C | 15.8°C | 11.4°C | 25.2°C | 7.4°C | 44 mm | 79% | 3.1 m/s | 4.7 |
| 1985 | 20.5°C | 16.0°C | 11.4°C | 26.7°C | 8.3°C | 61 mm | 80% | 3.1 m/s | 5 |
| 1984 | 23.3°C | 17.5°C | 11.8°C | 27.8°C | 7.0°C | 27 mm | 70% | 2.8 m/s | 5.8 |
| 1983 | 24.2°C | 19.4°C | 14.6°C | 28.4°C | 9.0°C | 48 mm | 79% | 2 m/s | — |
| 1982 | 21.4°C | 16.6°C | 11.8°C | 25.5°C | 8.7°C | 43 mm | 79% | 2.9 m/s | — |
| 1981 | 19.9°C | 15.6°C | 11.4°C | 24.3°C | 8.9°C | 47 mm | 81% | 3.1 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 21.6°C with lows near 12.3°C (mean 17°C), based on 45 years of NASA POWER data.
July averages 59 mm of rainfall in Westbury, about average for rainfall. The wettest on record was 152 mm in 2007.
The hottest July reached 33.8°C in 2022. The coldest dipped to 6.4°C in 1996.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.6°C. Daytime highs moved from 21.9°C to 22.2°C and overnight lows from 12.2°C to 13°C over the same span.
July is one of the warmer months of the year in Westbury and about average for rainfall, so plan for around 21.6°C daytime highs and 12.3°C at night.
Not quite — July is the 12th coolest month in Westbury, averaging 17°C.
For July in Westbury, pack light layers you can adjust through the day, with typical highs of 21.6°C and lows of 12.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 78% — quite humid.
Average wind speed in July is 3.1 m/s. The windiest July on record averaged 4.1 m/s (1988).
The wettest July on record was 2007 with 152 mm. On average, July 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 Westbury 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.
