July is one of the warmer months of the year in Dumfries, with average highs near 17.3°C and lows around 11°C (mean 14.2°C). It is about average for rainfall, averaging 103 mm of rainfall and 85% relative humidity across the period.
July is one of the warmer months of the year in Dumfries. Across 45 years of records, the warmest July in Dumfries was 2006 — when the month averaged 16.3°C — while the coldest was 1993 at 12.3°C. Typical July days reach 17.3°C with nights near 11°C. The long-term trend is warming, about 0.2°C per decade.
July is about average for rainfall in Dumfries, averaging 103 mm of rainfall. The wettest July on record was 2023 with 189 mm, while the driest was 1984 at 31 mm.
Relative humidity in Dumfries during July averages 85%. The most humid July was 2002 at 88%, and the least humid was 1989 at 80%.
July receives about 4.5 kWh/m²/day of solar energy in Dumfries. The sunniest Julys were 2006 and 2013 at 5.3 kWh/m²/day, and the cloudiest was 2002 at 3.6.
Average wind speed in Dumfries during July is 3.4 m/s. The windiest July was 1988 at 4.5 m/s, while the calmest was 2021 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.9°C | 14.0°C | 14.1°C | 14.3°C | 14.6°C | +0.7°C |
| Avg High | 17.2°C | 17.2°C | 17.1°C | 17.3°C | 17.7°C | +0.5°C |
| Avg Low | 10.7°C | 10.9°C | 11.1°C | 11.2°C | 11.5°C | +0.8°C |
| Avg Rain | 89 mm | 92 mm | 102 mm | 121 mm | 110 mm | +21 mm |
July temperatures in Dumfries have risen by about 0.7°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 6.3°C (1993) to a record high of 28.3°C (2022).
Rainfall in July is about average for rainfall, averaging 103 mm, with a wettest year of 189 mm.
One of the best times to visit Dumfries
July is one of the best times to visit Dumfries. Expect days averaging 17.3°C and nights around 11°C (mean 14.2°C) — warmer than Dumfries's yearly average — with higher rainfall (103 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 | 18.8°C | 15.6°C | 12.4°C | 25.1°C | 8.6°C | 97 mm | 86% | 3.2 m/s | 4.5 |
| 2024 | 16.9°C | 13.8°C | 10.7°C | 19.8°C | 7.4°C | 93 mm | 85% | 3 m/s | 4.1 |
| 2023 🌧️ | 16.8°C | 14.1°C | 11.5°C | 21.2°C | 9.0°C | 189 mm | 86% | 4.2 m/s | 4.3 |
| 2022 | 18.4°C | 15.1°C | 11.7°C | 28.3°C | 8.8°C | 63 mm | 84% | 3.4 m/s | 4.8 |
| 2021 | 19.5°C | 15.9°C | 12.4°C | 24.8°C | 10.2°C | 56 mm | 84% | 2.2 m/s | 5 |
| 2020 | 15.8°C | 13.0°C | 10.2°C | 22.7°C | 7.5°C | 162 mm | 86% | 3.9 m/s | 4.2 |
| 2019 | 18.2°C | 15.3°C | 12.3°C | 24.7°C | 7.1°C | 126 mm | 86% | 3.4 m/s | 4.3 |
| 2018 | 19.4°C | 15.8°C | 12.3°C | 22.8°C | 9.9°C | 72 mm | 82% | 2.7 m/s | 5 |
| 2017 | 16.4°C | 13.5°C | 10.6°C | 21.8°C | 7.1°C | 142 mm | 86% | 3.6 m/s | 4.2 |
| 2016 | 16.4°C | 13.6°C | 10.7°C | 24.4°C | 7.8°C | 136 mm | 88% | 3.7 m/s | 4 |
| 2015 | 16.0°C | 12.9°C | 9.8°C | 24.0°C | 6.7°C | 154 mm | 85% | 3.9 m/s | 4.2 |
| 2014 | 18.4°C | 15.0°C | 11.7°C | 23.9°C | 9.7°C | 80 mm | 84% | 3 m/s | 5.1 |
| 2013 | 19.4°C | 15.9°C | 12.3°C | 24.5°C | 8.8°C | 93 mm | 85% | 2.7 m/s | 5.3 |
| 2012 | 15.6°C | 13.0°C | 10.5°C | 20.1°C | 7.8°C | 155 mm | 88% | 3.1 m/s | 3.8 |
| 2011 | 16.8°C | 13.5°C | 10.2°C | 19.7°C | 7.2°C | 88 mm | 83% | 2.6 m/s | 4.8 |
| 2010 | 16.7°C | 14.0°C | 11.4°C | 19.1°C | 8.7°C | 164 mm | 87% | 4.2 m/s | 4 |
| 2009 | 16.9°C | 14.2°C | 11.5°C | 23.3°C | 8.0°C | 154 mm | 86% | 3.8 m/s | 4.4 |
| 2008 | 17.3°C | 14.4°C | 11.5°C | 22.5°C | 7.1°C | 141 mm | 87% | 3.9 m/s | 4.3 |
| 2007 | 15.9°C | 13.2°C | 10.5°C | 17.5°C | 7.8°C | 129 mm | 87% | 3.6 m/s | 4.5 |
| 2006 🔥 | 20.0°C | 16.3°C | 12.6°C | 25.3°C | 8.4°C | 57 mm | 84% | 3 m/s | 5.3 |
| 2005 | 17.4°C | 14.3°C | 11.2°C | 25.6°C | 8.4°C | 55 mm | 85% | 3.3 m/s | 4.6 |
| 2004 | 16.2°C | 13.3°C | 10.4°C | 20.0°C | 7.4°C | 88 mm | 85% | 3.3 m/s | 4.3 |
| 2003 | 17.7°C | 14.9°C | 12.0°C | 23.6°C | 9.0°C | 115 mm | 87% | 3.7 m/s | 4.1 |
| 2002 | 15.8°C | 13.0°C | 10.3°C | 20.0°C | 8.0°C | 117 mm | 88% | 3.1 m/s | 3.6 |
| 2001 | 17.1°C | 14.0°C | 11.0°C | 22.8°C | 7.1°C | 101 mm | 86% | 3.3 m/s | 3.9 |
| 2000 | 17.0°C | 13.5°C | 10.1°C | 23.1°C | 6.4°C | 61 mm | 84% | 2.8 m/s | 4.6 |
| 1999 | 18.4°C | 14.8°C | 11.2°C | 23.8°C | 8.4°C | 75 mm | 85% | 3.3 m/s | 4.5 |
| 1998 | 15.8°C | 13.1°C | 10.5°C | 18.1°C | 8.2°C | 142 mm | 87% | 4.2 m/s | 4.3 |
| 1997 | 17.7°C | 14.5°C | 11.3°C | 22.0°C | 7.5°C | 115 mm | 84% | 3 m/s | 4.8 |
| 1996 | 16.8°C | 13.6°C | 10.5°C | 20.9°C | 8.0°C | 73 mm | 83% | 3.4 m/s | 4.7 |
| 1995 | 18.5°C | 15.1°C | 11.7°C | 24.4°C | 9.1°C | 81 mm | 85% | 3.6 m/s | 4.6 |
| 1994 | 17.5°C | 14.2°C | 11.0°C | 21.6°C | 8.4°C | 87 mm | 84% | 2.9 m/s | 4.7 |
| 1993 ❄️ | 15.1°C | 12.3°C | 9.6°C | 18.2°C | 6.3°C | 104 mm | 87% | 4.2 m/s | 4.4 |
| 1992 | 16.3°C | 13.4°C | 10.4°C | 21.6°C | 6.4°C | 87 mm | 84% | 4 m/s | 4.4 |
| 1991 | 18.4°C | 15.2°C | 12.0°C | 22.9°C | 9.2°C | 84 mm | 85% | 3.9 m/s | 4.2 |
| 1990 | 17.6°C | 14.1°C | 10.5°C | 21.6°C | 6.9°C | 76 mm | 82% | 3.9 m/s | 4.7 |
| 1989 | 19.4°C | 15.6°C | 11.8°C | 24.5°C | 8.0°C | 36 mm | 80% | 3.2 m/s | 5.2 |
| 1988 | 15.1°C | 12.6°C | 10.1°C | 17.9°C | 8.0°C | 179 mm | 86% | 4.5 m/s | 4.1 |
| 1987 | 16.7°C | 13.5°C | 10.3°C | 20.1°C | 6.8°C | 129 mm | 86% | 3.7 m/s | 4.2 |
| 1986 | 15.7°C | 12.7°C | 9.8°C | 21.1°C | 6.7°C | 77 mm | 85% | 3.7 m/s | 4.1 |
| 1985 | 16.1°C | 13.1°C | 10.2°C | 22.1°C | 7.3°C | 160 mm | 87% | 3.8 m/s | 3.9 |
| 1984 | 18.3°C | 14.6°C | 11.0°C | 21.9°C | 7.7°C | 31 mm | 81% | 2.9 m/s | 5 |
| 1983 | 19.7°C | 15.9°C | 12.2°C | 25.4°C | 8.3°C | 32 mm | 83% | 2.5 m/s | — |
| 1982 | 18.0°C | 14.4°C | 10.7°C | 21.7°C | 7.1°C | 57 mm | 83% | 2.8 m/s | — |
| 1981 | 15.8°C | 12.9°C | 9.9°C | 19.4°C | 7.6°C | 102 mm | 86% | 3.8 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 17.3°C with lows near 11°C (mean 14.2°C), based on 45 years of NASA POWER data.
July averages 103 mm of rainfall in Dumfries, about average for rainfall. The wettest on record was 189 mm in 2023.
The hottest July reached 28.3°C in 2022. The coldest dipped to 6.3°C in 1993.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.7°C. Daytime highs moved from 17.6°C to 18.1°C and overnight lows from 10.8°C to 11.7°C over the same span.
July is one of the warmer months of the year in Dumfries and about average for rainfall, so plan for around 17.3°C daytime highs and 11°C at night.
Not quite — July is the 12th coolest month in Dumfries, averaging 14.2°C.
For July in Dumfries, pack light layers you can adjust through the day, with typical highs of 17.3°C and lows of 11°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 85% — quite humid.
Average wind speed in July is 3.4 m/s. The windiest July on record averaged 4.5 m/s (1988).
The wettest July on record was 2023 with 189 mm. On average, July sees 103 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 Dumfries 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.
