January is one of the warmer months of the year in Ayr, with average highs near 29.6°C and lows around 26.3°C (mean 28°C). It is a relatively wet time of year, averaging 185 mm of rainfall and 77% relative humidity across the period.
January is one of the warmer months of the year in Ayr. Across 45 years of records, the warmest Januarys in Ayr were 1994 and 2024 — when the month averaged 29.4°C — while the coldest was 1981 at 26.5°C. Typical January days reach 29.6°C with nights near 26.3°C. The long-term January temperature trend is broadly flat.
January is a relatively wet time of year in Ayr, averaging 185 mm of rainfall. The wettest January on record was 1981 with 501 mm, while the driest was 1988 at 27 mm.
Relative humidity in Ayr during January averages 77%. The most humid January was 1991 at 87%, and the least humid was 2003 at 68%.
January receives about 6.6 kWh/m²/day of solar energy in Ayr. The sunniest January was 1985 at 7.9 kWh/m²/day, and the cloudiest was 2009 at 5.1.
Average wind speed in Ayr during January is 4.8 m/s. The windiest January was 2014 at 6 m/s, while the calmest were 1987 and 2004 at 4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.8°C | 27.9°C | 27.9°C | 28.1°C | 28.3°C | +0.5°C |
| Avg High | 29.6°C | 29.6°C | 29.5°C | 29.7°C | 29.8°C | +0.2°C |
| Avg Low | 26.1°C | 26.1°C | 26.3°C | 26.4°C | 26.8°C | +0.7°C |
| Avg Rain | 157 mm | 164 mm | 214 mm | 173 mm | 230 mm | +73 mm |
January temperatures in Ayr have risen by about 0.5°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 22.9°C (2001) to a record high of 39.2°C (1994).
Rainfall in January is a relatively wet time of year, averaging 185 mm, with a wettest year of 501 mm.
A quieter season to visit Ayr
If your dates are flexible, the more temperate months of August and June tend to be the most comfortable for visiting Ayr. That said, January — with days averaging 29.6°C and nights around 26.3°C (mean 28°C) and higher rainfall (185 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 30.5°C | 28.9°C | 27.2°C | 37.1°C | 25.6°C | 248 mm | 79% | 4.7 m/s | 6.2 |
| 2024 | 31.0°C | 29.4°C | 27.8°C | 33.6°C | 26.8°C | 98 mm | 78% | 4.7 m/s | 6.2 |
| 2023 | 28.7°C | 27.4°C | 26.0°C | 30.1°C | 24.1°C | 366 mm | 81% | 4.9 m/s | 6.2 |
| 2022 | 30.5°C | 28.7°C | 27.0°C | 34.3°C | 25.9°C | 175 mm | 76% | 4.6 m/s | 7 |
| 2021 | 28.2°C | 27.0°C | 25.8°C | 29.3°C | 24.0°C | 302 mm | 84% | 4.7 m/s | 5.4 |
| 2020 | 30.0°C | 28.4°C | 26.8°C | 34.4°C | 25.7°C | 190 mm | 77% | 4.4 m/s | 6.5 |
| 2019 | 29.1°C | 27.5°C | 25.8°C | 32.0°C | 24.5°C | 224 mm | 77% | 5.9 m/s | 6 |
| 2018 | 29.9°C | 28.2°C | 26.5°C | 34.2°C | 25.1°C | 67 mm | 73% | 5.3 m/s | 6.6 |
| 2017 | 30.0°C | 28.4°C | 26.9°C | 31.3°C | 25.9°C | 153 mm | 78% | 4.3 m/s | 6.6 |
| 2016 | 30.5°C | 28.6°C | 26.7°C | 34.9°C | 24.9°C | 51 mm | 72% | 4.4 m/s | 7.3 |
| 2015 | 30.4°C | 28.7°C | 27.1°C | 34.6°C | 25.8°C | 163 mm | 77% | 4.4 m/s | 6.4 |
| 2014 | 29.8°C | 28.0°C | 26.2°C | 31.7°C | 23.8°C | 94 mm | 74% | 6 m/s | 6.5 |
| 2013 | 30.1°C | 28.3°C | 26.5°C | 32.8°C | 25.1°C | 222 mm | 75% | 5 m/s | 6.8 |
| 2012 | 29.2°C | 27.7°C | 26.2°C | 30.6°C | 24.3°C | 167 mm | 77% | 4.1 m/s | 6.4 |
| 2011 | 28.9°C | 27.4°C | 25.9°C | 30.3°C | 24.0°C | 190 mm | 80% | 4.3 m/s | 6.6 |
| 2010 | 29.5°C | 28.0°C | 26.6°C | 31.8°C | 25.1°C | 399 mm | 78% | 5.8 m/s | 5.8 |
| 2009 | 28.9°C | 27.7°C | 26.5°C | 30.9°C | 25.6°C | 435 mm | 82% | 5.7 m/s | 5.1 |
| 2008 | 29.1°C | 27.8°C | 26.4°C | 31.1°C | 25.1°C | 305 mm | 81% | 4.5 m/s | 6 |
| 2007 | 29.2°C | 27.7°C | 26.3°C | 30.9°C | 25.1°C | 254 mm | 77% | 4.9 m/s | 6 |
| 2006 | 29.7°C | 28.2°C | 26.7°C | 31.5°C | 25.1°C | 327 mm | 76% | 5 m/s | 6.4 |
| 2005 | 29.7°C | 27.9°C | 26.1°C | 31.1°C | 23.8°C | 370 mm | 76% | 4.6 m/s | 6.3 |
| 2004 | 30.2°C | 28.6°C | 27.1°C | 34.1°C | 24.7°C | 169 mm | 77% | 4 m/s | 6.6 |
| 2003 | 29.8°C | 27.9°C | 26.1°C | 31.6°C | 25.2°C | 36 mm | 68% | 5.2 m/s | 6.9 |
| 2002 | 30.8°C | 29.1°C | 27.3°C | 32.7°C | 25.3°C | 110 mm | 73% | 4.1 m/s | 7.3 |
| 2001 | 28.5°C | 26.6°C | 24.8°C | 30.3°C | 22.9°C | 64 mm | 76% | 4.9 m/s | 7.4 |
| 2000 | 29.2°C | 27.4°C | 25.6°C | 31.0°C | 23.7°C | 69 mm | 75% | 4.7 m/s | 7.1 |
| 1999 | 30.1°C | 28.4°C | 26.7°C | 31.9°C | 25.3°C | 117 mm | 77% | 4.4 m/s | 6.7 |
| 1998 | 29.2°C | 27.7°C | 26.1°C | 32.4°C | 24.9°C | 290 mm | 83% | 5.2 m/s | 6.3 |
| 1997 | 29.6°C | 27.8°C | 25.9°C | 31.8°C | 24.5°C | 111 mm | 73% | 5.8 m/s | 6.8 |
| 1996 | 29.5°C | 27.8°C | 26.1°C | 32.1°C | 24.8°C | 292 mm | 78% | 4.7 m/s | 6.6 |
| 1995 | 29.6°C | 27.8°C | 25.9°C | 32.5°C | 24.2°C | 74 mm | 73% | 5 m/s | 7.4 |
| 1994 🔥 | 31.8°C | 29.4°C | 27.0°C | 39.2°C | 25.0°C | 79 mm | 72% | 5.2 m/s | 7.5 |
| 1993 | 28.3°C | 26.8°C | 25.3°C | 29.4°C | 24.3°C | 146 mm | 76% | 5.1 m/s | 6.4 |
| 1992 | 30.6°C | 28.7°C | 26.8°C | 33.6°C | 25.7°C | 31 mm | 72% | 4.5 m/s | 7.4 |
| 1991 | 27.8°C | 26.7°C | 25.5°C | 32.0°C | 24.4°C | 465 mm | 87% | 4.5 m/s | 5.4 |
| 1990 | 29.8°C | 27.8°C | 25.7°C | 34.3°C | 23.9°C | 38 mm | 72% | 5 m/s | 7.4 |
| 1989 | 29.1°C | 27.4°C | 25.7°C | 30.7°C | 23.5°C | 89 mm | 77% | 4.6 m/s | 6.9 |
| 1988 | 29.7°C | 27.7°C | 25.7°C | 31.4°C | 24.0°C | 27 mm | 73% | 5.1 m/s | 7.7 |
| 1987 | 30.0°C | 28.4°C | 26.8°C | 32.3°C | 25.5°C | 74 mm | 75% | 4 m/s | 7.4 |
| 1986 | 29.6°C | 27.9°C | 26.3°C | 32.2°C | 24.1°C | 191 mm | 77% | 5.4 m/s | 6.5 |
| 1985 | 30.4°C | 28.5°C | 26.6°C | 36.5°C | 25.2°C | 54 mm | 71% | 5 m/s | 7.9 |
| 1984 | 29.0°C | 27.5°C | 26.0°C | 31.8°C | 24.3°C | 238 mm | 79% | 4.3 m/s | 6.2 |
| 1983 | 29.9°C | 27.7°C | 25.5°C | 33.7°C | 23.7°C | 139 mm | 76% | 4.8 m/s | — |
| 1982 | 30.9°C | 28.9°C | 27.0°C | 34.4°C | 25.7°C | 105 mm | 74% | 4.4 m/s | — |
| 1981 ❄️ 🌧️ | 27.6°C | 26.5°C | 25.4°C | 30.8°C | 24.5°C | 501 mm | 83% | 5.7 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 29.6°C with lows near 26.3°C (mean 28°C), based on 45 years of NASA POWER data.
January averages 185 mm of rainfall in Ayr, a relatively wet time of year. The wettest on record was 501 mm in 1981.
The hottest January reached 39.2°C in 1994. The coldest dipped to 22.9°C in 2001.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.5°C. Daytime highs moved from 29.6°C to 29.8°C and overnight lows from 26.1°C to 26.8°C over the same span.
January is one of the warmer months of the year in Ayr and a relatively wet time of year, so plan for around 29.6°C daytime highs and 26.3°C at night.
Not quite — January is the 12th coolest month in Ayr, averaging 28°C.
For January in Ayr, pack light layers you can adjust through the day, with typical highs of 29.6°C and lows of 26.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 77% — quite humid.
Average wind speed in January is 4.8 m/s. The windiest January on record averaged 6 m/s (2014).
The wettest January on record was 1981 with 501 mm. On average, January sees 185 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 Ayr behaves each January, 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 January specifically, along with year-by-year records and how the month has changed over the decades.
