January is one of the cooler months of the year in Waterlooville, with average highs near 7.2°C and lows around 2.1°C (mean 4.7°C). It is a relatively wet time of year, averaging 80 mm of rainfall and 94% relative humidity across the period.
January is one of the cooler months of the year in Waterlooville. Across 45 years of records, the warmest Januarys in Waterlooville were 1990 and 2007 — when the month averaged 6.9°C — while the coldest was 1987 at 0.3°C. Typical January days reach 7.2°C with nights near 2.1°C. The long-term trend is warming, about 0.2°C per decade.
January is a relatively wet time of year in Waterlooville, averaging 80 mm of rainfall. The wettest January on record was 1995 with 139 mm, while the driest was 1997 at 20 mm.
Relative humidity in Waterlooville during January averages 94%. The most humid January was 2010 at 96%, and the least humid was 1984 at 91%.
January receives about 0.9 kWh/m²/day of solar energy in Waterlooville. The sunniest Januarys were 2000, 2003 and 2024, among others at 1 kWh/m²/day, and the cloudiest were 1987, 1995 and 2013 at 0.7.
Average wind speed in Waterlooville during January is 4.2 m/s. The windiest January was 2007 at 5.3 m/s, while the calmest were 2017 and 2022 at 3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 3.8°C | 4.9°C | 5.1°C | 4.6°C | 4.7°C | +0.9°C |
| Avg High | 6.4°C | 7.4°C | 7.6°C | 7.1°C | 7.3°C | +0.9°C |
| Avg Low | 1.3°C | 2.5°C | 2.7°C | 1.9°C | 2.1°C | +0.8°C |
| Avg Rain | 79 mm | 86 mm | 70 mm | 82 mm | 85 mm | +5 mm |
January temperatures in Waterlooville have risen by about 0.6°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -8.5°C (1987) to a record high of 12.9°C (2003).
Rainfall in January is a relatively wet time of year, averaging 80 mm, with a wettest year of 139 mm.
A quieter season to visit Waterlooville
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Waterlooville. That said, January — with days averaging 7.2°C and nights around 2.1°C (mean 4.7°C) and moderate rainfall (80 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 | 6.7°C | 4.0°C | 1.4°C | 11.9°C | -2.6°C | 108 mm | 94% | 3.3 m/s | 0.8 |
| 2024 | 6.9°C | 4.5°C | 2.0°C | 12.8°C | -3.6°C | 80 mm | 94% | 4.1 m/s | 1 |
| 2023 | 7.5°C | 4.9°C | 2.2°C | 12.2°C | -3.5°C | 104 mm | 95% | 4.2 m/s | 0.9 |
| 2022 | 7.9°C | 4.8°C | 1.7°C | 12.1°C | -2.9°C | 33 mm | 94% | 3 m/s | 0.9 |
| 2021 | 6.2°C | 3.6°C | 1.0°C | 11.7°C | -2.6°C | 98 mm | 96% | 3.9 m/s | 0.8 |
| 2020 | 8.7°C | 6.5°C | 4.3°C | 12.4°C | -0.7°C | 84 mm | 95% | 3.9 m/s | 0.8 |
| 2019 | 6.3°C | 3.5°C | 0.7°C | 10.7°C | -2.5°C | 36 mm | 94% | 3.3 m/s | 0.9 |
| 2018 | 8.6°C | 6.0°C | 3.3°C | 12.5°C | -0.2°C | 77 mm | 93% | 4.6 m/s | 0.9 |
| 2017 | 6.9°C | 4.2°C | 1.4°C | 10.4°C | -2.3°C | 79 mm | 94% | 3 m/s | 0.9 |
| 2016 | 8.5°C | 5.9°C | 3.4°C | 12.9°C | -2.4°C | 130 mm | 92% | 4.5 m/s | 0.9 |
| 2015 | 8.1°C | 4.8°C | 1.5°C | 12.6°C | -2.9°C | 94 mm | 93% | 4.5 m/s | 0.9 |
| 2014 | 8.8°C | 6.4°C | 4.0°C | 11.7°C | 0.2°C | 125 mm | 93% | 4.5 m/s | 0.9 |
| 2013 | 6.0°C | 4.1°C | 2.2°C | 12.2°C | -2.9°C | 82 mm | 94% | 3.7 m/s | 0.7 |
| 2012 | 8.4°C | 5.6°C | 2.7°C | 11.9°C | -2.7°C | 47 mm | 92% | 4.1 m/s | 0.9 |
| 2011 | 6.1°C | 3.7°C | 1.3°C | 11.7°C | -2.9°C | 89 mm | 95% | 3.7 m/s | 0.8 |
| 2010 | 3.7°C | 1.3°C | -1.2°C | 8.3°C | -7.4°C | 62 mm | 96% | 3.2 m/s | 0.8 |
| 2009 | 5.6°C | 3.2°C | 0.9°C | 9.4°C | -7.3°C | 76 mm | 94% | 3.7 m/s | 0.9 |
| 2008 | 9.4°C | 6.8°C | 4.2°C | 12.5°C | -0.2°C | 99 mm | 93% | 5 m/s | 0.8 |
| 2007 | 9.5°C | 6.9°C | 4.3°C | 12.7°C | -2.8°C | 77 mm | 92% | 5.3 m/s | 0.8 |
| 2006 | 6.7°C | 4.3°C | 1.8°C | 11.2°C | -3.0°C | 28 mm | 94% | 3.6 m/s | 0.8 |
| 2005 | 8.5°C | 6.0°C | 3.5°C | 11.9°C | -1.9°C | 42 mm | 92% | 4.9 m/s | 0.9 |
| 2004 | 7.9°C | 5.4°C | 2.9°C | 12.0°C | -3.0°C | 98 mm | 94% | 4.6 m/s | 0.9 |
| 2003 | 6.5°C | 4.2°C | 1.9°C | 12.9°C | -2.8°C | 77 mm | 94% | 4.6 m/s | 1 |
| 2002 | 8.6°C | 6.1°C | 3.6°C | 12.2°C | -1.8°C | 66 mm | 94% | 4.3 m/s | 0.8 |
| 2001 | 6.2°C | 4.0°C | 1.9°C | 10.9°C | -2.1°C | 107 mm | 95% | 3.9 m/s | 0.9 |
| 2000 | 7.4°C | 4.6°C | 1.8°C | 11.4°C | -1.2°C | 29 mm | 94% | 3.7 m/s | 1 |
| 1999 | 8.4°C | 6.1°C | 3.8°C | 12.0°C | -1.3°C | 99 mm | 94% | 4.7 m/s | 0.9 |
| 1998 | 8.0°C | 5.4°C | 2.9°C | 12.4°C | -1.9°C | 111 mm | 93% | 4.8 m/s | 0.9 |
| 1997 | 4.1°C | 1.9°C | -0.4°C | 8.2°C | -6.7°C | 20 mm | 95% | 3.2 m/s | 0.8 |
| 1996 | 6.6°C | 5.0°C | 3.3°C | 10.9°C | -4.6°C | 68 mm | 94% | 4.5 m/s | 0.8 |
| 1995 🌧️ | 8.0°C | 5.2°C | 2.5°C | 11.4°C | -3.0°C | 139 mm | 93% | 5.2 m/s | 0.7 |
| 1994 | 7.7°C | 5.0°C | 2.3°C | 11.2°C | -2.3°C | 112 mm | 95% | 4.5 m/s | 0.9 |
| 1993 | 9.0°C | 6.4°C | 3.8°C | 12.0°C | -2.4°C | 88 mm | 94% | 4.9 m/s | 0.8 |
| 1992 | 6.1°C | 3.5°C | 1.0°C | 11.0°C | -3.4°C | 27 mm | 94% | 3.3 m/s | 0.9 |
| 1991 | 6.5°C | 4.1°C | 1.7°C | 11.3°C | -2.3°C | 89 mm | 91% | 4 m/s | 0.8 |
| 1990 🔥 | 9.2°C | 6.9°C | 4.5°C | 11.6°C | 1.0°C | 106 mm | 94% | 4.9 m/s | 0.8 |
| 1989 | 8.6°C | 5.8°C | 3.0°C | 10.8°C | -0.6°C | 33 mm | 93% | 3.2 m/s | 1 |
| 1988 | 8.1°C | 5.7°C | 3.4°C | 11.9°C | -1.6°C | 138 mm | 94% | 4.5 m/s | 0.8 |
| 1987 ❄️ | 2.6°C | 0.3°C | -1.9°C | 11.1°C | -8.5°C | 28 mm | 91% | 3.3 m/s | 0.7 |
| 1986 | 6.2°C | 3.6°C | 1.0°C | 11.2°C | -3.0°C | 116 mm | 93% | 4.8 m/s | 0.8 |
| 1985 | 3.1°C | 0.7°C | -1.8°C | 11.0°C | -7.8°C | 72 mm | 95% | 3.7 m/s | 0.9 |
| 1984 | 7.0°C | 4.1°C | 1.2°C | 12.3°C | -2.8°C | 133 mm | 91% | 5.2 m/s | 0.9 |
| 1983 | 8.9°C | 6.3°C | 3.7°C | 12.2°C | -2.2°C | 81 mm | 93% | 5.1 m/s | — |
| 1982 | 5.8°C | 3.5°C | 1.2°C | 10.9°C | -7.2°C | 71 mm | 95% | 4.1 m/s | — |
| 1981 | 7.2°C | 4.5°C | 1.7°C | 10.5°C | -3.3°C | 42 mm | 93% | 3.8 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 7.2°C with lows near 2.1°C (mean 4.7°C), based on 45 years of NASA POWER data.
January averages 80 mm of rainfall in Waterlooville, a relatively wet time of year. The wettest on record was 139 mm in 1995.
The hottest January reached 12.9°C in 2003. The coldest dipped to -8.5°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.6°C. Daytime highs moved from 6.4°C to 7°C and overnight lows from 1.2°C to 1.7°C over the same span.
January is one of the cooler months of the year in Waterlooville and a relatively wet time of year, so plan for around 7.2°C daytime highs and 2.1°C at night.
Yes — January is the coldest month of the year in Waterlooville, averaging 4.7°C.
For January in Waterlooville, pack warm layers and a jacket for chilly mornings, with typical highs of 7.2°C and lows of 2.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 94% — quite humid.
Average wind speed in January is 4.2 m/s. The windiest January on record averaged 5.3 m/s (2007).
The wettest January on record was 1995 with 139 mm. On average, January sees 80 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 Waterlooville 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.
