July is one of the cooler months of the year in Cambridge, with average highs near 12.1°C and lows around 4.8°C (mean 8.5°C). It is a relatively wet time of year, averaging 121 mm of rainfall and 89% relative humidity across the period.
July is one of the cooler months of the year in Cambridge. Across 45 years of records, the warmest July in Cambridge was 1998 — when the month averaged 10.4°C — while the coldest was 1983 at 7.1°C. Typical July days reach 12.1°C with nights near 4.8°C. The long-term trend is warming, about 0.2°C per decade.
July is a relatively wet time of year in Cambridge, averaging 121 mm of rainfall. The wettest July on record was 2022 with 249 mm, while the driest was 1983 at 38 mm.
Relative humidity in Cambridge during July averages 89%. The most humid July was 2017 at 92%, and the least humid was 1982 at 85%.
July receives about 2.1 kWh/m²/day of solar energy in Cambridge. The sunniest July was 1989 at 2.4 kWh/m²/day, and the cloudiest were 1998, 2007 and 2008, among others at 1.8.
Average wind speed in Cambridge during July is 2.2 m/s. The windiest Julys were 2000 and 2023 at 2.9 m/s, while the calmest was 1993 at 1.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 8.2°C | 8.3°C | 8.5°C | 8.5°C | 9.3°C | +1.1°C |
| Avg High | 11.9°C | 11.8°C | 12.2°C | 12.2°C | 12.8°C | +0.9°C |
| Avg Low | 4.4°C | 4.8°C | 4.8°C | 4.8°C | 5.8°C | +1.4°C |
| Avg Rain | 110 mm | 138 mm | 110 mm | 106 mm | 150 mm | +40 mm |
July temperatures in Cambridge have risen by about 0.9°C between 1981–1985 and 2021–2025.
July has ranged from a record low of -2.7°C (1994) to a record high of 17.5°C (2025).
Rainfall in July is a relatively wet time of year, averaging 121 mm, with a wettest year of 249 mm.
A quieter season to visit Cambridge
If your dates are flexible, the more temperate months of February and January tend to be the most comfortable for visiting Cambridge. That said, July — with days averaging 12.1°C and nights around 4.8°C (mean 8.5°C) and higher rainfall (121 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 | 13.0°C | 9.3°C | 5.6°C | 17.5°C | -0.6°C | 220 mm | 90% | 2 m/s | 2.1 |
| 2024 | 12.9°C | 8.9°C | 4.8°C | 15.4°C | -0.7°C | 123 mm | 90% | 1.7 m/s | 2.1 |
| 2023 | 12.4°C | 9.4°C | 6.4°C | 14.9°C | 0.5°C | 78 mm | 90% | 2.9 m/s | 2.1 |
| 2022 🌧️ | 13.2°C | 10.1°C | 7.0°C | 16.5°C | 1.7°C | 249 mm | 91% | 2.6 m/s | 2 |
| 2021 | 12.8°C | 9.0°C | 5.3°C | 15.6°C | -1.3°C | 121 mm | 89% | 2.2 m/s | 2.2 |
| 2020 | 12.5°C | 9.0°C | 5.6°C | 16.0°C | 0.6°C | 107 mm | 90% | 2.4 m/s | 2 |
| 2019 | 13.4°C | 10.0°C | 6.6°C | 16.6°C | 1.6°C | 149 mm | 91% | 2 m/s | 2 |
| 2018 | 12.2°C | 8.8°C | 5.4°C | 14.0°C | 0.0°C | 105 mm | 90% | 2 m/s | 2.1 |
| 2017 | 11.5°C | 8.1°C | 4.7°C | 15.4°C | -1.5°C | 150 mm | 92% | 2 m/s | 2 |
| 2016 | 12.3°C | 8.6°C | 4.8°C | 16.1°C | -1.6°C | 127 mm | 87% | 2.8 m/s | 2.1 |
| 2015 | 11.5°C | 7.6°C | 3.6°C | 14.1°C | -1.8°C | 103 mm | 89% | 2.2 m/s | 2.2 |
| 2014 | 12.0°C | 8.0°C | 4.1°C | 16.4°C | -0.6°C | 41 mm | 86% | 2.4 m/s | 2.2 |
| 2013 | 12.6°C | 8.9°C | 5.3°C | 16.3°C | -0.1°C | 50 mm | 89% | 1.6 m/s | 2.1 |
| 2012 | 12.5°C | 8.5°C | 4.5°C | 14.4°C | -1.1°C | 178 mm | 88% | 2 m/s | 2 |
| 2011 | 11.8°C | 8.5°C | 5.2°C | 15.8°C | -2.0°C | 105 mm | 89% | 2.8 m/s | 2.1 |
| 2010 | 12.1°C | 8.0°C | 3.9°C | 14.7°C | -1.8°C | 53 mm | 88% | 1.9 m/s | 2.2 |
| 2009 | 11.7°C | 7.8°C | 3.9°C | 14.2°C | -1.5°C | 120 mm | 88% | 2.2 m/s | 2.1 |
| 2008 | 12.1°C | 8.8°C | 5.6°C | 16.1°C | -0.6°C | 196 mm | 91% | 2.7 m/s | 1.8 |
| 2007 | 12.4°C | 9.1°C | 5.7°C | 15.2°C | -1.2°C | 163 mm | 91% | 2.3 m/s | 1.8 |
| 2006 | 12.4°C | 8.4°C | 4.3°C | 15.1°C | -1.8°C | 89 mm | 89% | 1.9 m/s | 2.2 |
| 2005 | 12.2°C | 8.9°C | 5.6°C | 15.4°C | 0.3°C | 133 mm | 92% | 2.2 m/s | 1.9 |
| 2004 | 11.7°C | 7.7°C | 3.7°C | 13.5°C | -1.6°C | 121 mm | 89% | 2.1 m/s | 2.3 |
| 2003 | 11.5°C | 7.4°C | 3.4°C | 13.9°C | -1.1°C | 73 mm | 88% | 2 m/s | 2.2 |
| 2002 | 12.4°C | 8.9°C | 5.5°C | 16.6°C | 0.8°C | 99 mm | 88% | 2.6 m/s | 2 |
| 2001 | 11.5°C | 7.2°C | 2.9°C | 13.8°C | -2.2°C | 47 mm | 88% | 1.8 m/s | 2.1 |
| 2000 | 13.8°C | 10.3°C | 6.9°C | 16.2°C | 0.8°C | 60 mm | 85% | 2.9 m/s | 2 |
| 1999 | 12.5°C | 8.7°C | 4.9°C | 16.1°C | 0.0°C | 83 mm | 90% | 2 m/s | 2 |
| 1998 🔥 | 13.9°C | 10.4°C | 6.9°C | 17.3°C | 1.6°C | 210 mm | 90% | 2.4 m/s | 1.8 |
| 1997 | 11.3°C | 7.5°C | 3.8°C | 13.7°C | -0.6°C | 50 mm | 88% | 1.8 m/s | 2.1 |
| 1996 | 12.1°C | 8.4°C | 4.7°C | 14.9°C | -1.2°C | 158 mm | 91% | 2 m/s | 1.9 |
| 1995 | 10.7°C | 7.7°C | 4.7°C | 13.7°C | -1.4°C | 187 mm | 91% | 2.5 m/s | 1.9 |
| 1994 | 10.7°C | 7.6°C | 4.5°C | 13.6°C | -2.7°C | 115 mm | 90% | 2.6 m/s | 2.1 |
| 1993 | 11.8°C | 7.7°C | 3.7°C | 14.0°C | -1.4°C | 41 mm | 89% | 1.5 m/s | 2 |
| 1992 | 11.6°C | 8.5°C | 5.3°C | 15.4°C | -0.3°C | 214 mm | 92% | 2.7 m/s | 2 |
| 1991 | 11.1°C | 7.5°C | 3.8°C | 13.6°C | -1.1°C | 141 mm | 90% | 1.9 m/s | 2.1 |
| 1990 | 11.8°C | 8.6°C | 5.3°C | 14.0°C | 0.3°C | 182 mm | 92% | 2.1 m/s | 2 |
| 1989 | 11.7°C | 7.4°C | 3.0°C | 14.4°C | -1.9°C | 107 mm | 88% | 1.6 m/s | 2.4 |
| 1988 | 12.0°C | 9.1°C | 6.1°C | 15.6°C | -0.3°C | 158 mm | 89% | 2.7 m/s | 2 |
| 1987 | 11.4°C | 7.8°C | 4.1°C | 13.4°C | -0.6°C | 94 mm | 89% | 2.2 m/s | 2.1 |
| 1986 | 11.3°C | 7.3°C | 3.2°C | 13.5°C | -1.6°C | 131 mm | 87% | 2.3 m/s | 2.3 |
| 1985 | 12.5°C | 9.6°C | 6.8°C | 16.0°C | 3.1°C | 149 mm | 91% | 2.2 m/s | 2 |
| 1984 | 13.0°C | 9.1°C | 5.2°C | 16.2°C | -0.5°C | 113 mm | 90% | 1.8 m/s | 1.8 |
| 1983 ❄️ | 11.8°C | 7.1°C | 2.5°C | 15.1°C | -1.5°C | 38 mm | 86% | 1.7 m/s | — |
| 1982 | 11.4°C | 7.5°C | 3.6°C | 14.8°C | -2.1°C | 74 mm | 85% | 2.3 m/s | — |
| 1981 | 12.0°C | 8.5°C | 4.9°C | 15.2°C | -1.4°C | 123 mm | 90% | 2.2 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 12.1°C with lows near 4.8°C (mean 8.5°C), based on 45 years of NASA POWER data.
July averages 121 mm of rainfall in Cambridge, a relatively wet time of year. The wettest on record was 249 mm in 2022.
The hottest July reached 17.5°C in 2025. The coldest dipped to -2.7°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.9°C. Daytime highs moved from 12.1°C to 12.9°C and overnight lows from 4.6°C to 5.8°C over the same span.
July is one of the cooler months of the year in Cambridge and a relatively wet time of year, so plan for around 12.1°C daytime highs and 4.8°C at night.
Yes — July is the coldest month of the year in Cambridge, averaging 8.5°C.
For July in Cambridge, pack warm layers and a jacket for chilly mornings, with typical highs of 12.1°C and lows of 4.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 89% — quite humid.
Average wind speed in July is 2.2 m/s. The windiest July on record averaged 2.9 m/s (2000).
The wettest July on record was 2022 with 249 mm. On average, July sees 121 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 Cambridge 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.
