March is one of the cooler months of the year in Surrey, with average highs near 9.1°C and lows around 4.5°C (mean 6.8°C). It is a relatively wet time of year, averaging 130 mm of rainfall and 83% relative humidity across the period.
March is one of the cooler months of the year in Surrey. Across 45 years of records, the warmest March in Surrey was 1992 — when the month averaged 9.9°C — while the coldest was 2002 at 4.2°C. Typical March days reach 9.1°C with nights near 4.5°C. The long-term March temperature trend is broadly flat.
March is a relatively wet time of year in Surrey, averaging 130 mm of rainfall. The wettest March on record was 2017 with 253 mm, while the driest was 1992 at 25 mm.
Relative humidity in Surrey during March averages 83%. The most humid March was 2025 at 91%, and the least humid was 1992 at 76%.
March receives about 2.7 kWh/m²/day of solar energy in Surrey. The sunniest March was 2019 at 3.6 kWh/m²/day, and the cloudiest was 2017 at 2.
Average wind speed in Surrey during March is 2 m/s. The windiest March was 1997 at 2.5 m/s, while the calmest was 1992 at 1.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 7.0°C | 7.1°C | 6.4°C | 6.9°C | 6.5°C | -0.5°C |
| Avg High | 9.5°C | 9.6°C | 8.6°C | 9.1°C | 8.6°C | -0.9°C |
| Avg Low | 4.5°C | 4.5°C | 4.1°C | 4.8°C | 4.4°C | -0.1°C |
| Avg Rain | 128 mm | 112 mm | 136 mm | 152 mm | 115 mm | -13 mm |
March temperatures in Surrey have fallen by about 0.5°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -4.7°C (2009) to a record high of 17.8°C (1994).
Rainfall in March is a relatively wet time of year, averaging 130 mm, with a wettest year of 253 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.3°C per decade while lows rose 0°C per decade, narrowing the gap between day and night.
A good time to visit Surrey
March is a good time to visit Surrey, with days averaging 9.1°C and nights around 4.5°C (mean 6.8°C, cooler than Surrey's yearly average) and higher rainfall. August and July are marginally more temperate, but March still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 8.1°C | 6.2°C | 4.4°C | 12.3°C | 1.4°C | 208 mm | 91% | 2.1 m/s | 2.3 |
| 2024 | 9.3°C | 7.1°C | 4.9°C | 16.5°C | -0.5°C | 106 mm | 83% | 1.9 m/s | 2.9 |
| 2023 | 8.4°C | 6.2°C | 4.0°C | 13.8°C | 1.4°C | 73 mm | 83% | 2 m/s | 2.9 |
| 2022 | 9.1°C | 7.1°C | 5.1°C | 12.2°C | 2.0°C | 137 mm | 86% | 1.6 m/s | 2.7 |
| 2021 | 8.7°C | 6.5°C | 4.3°C | 10.1°C | 0.7°C | 82 mm | 81% | 1.9 m/s | 2.7 |
| 2020 | 7.9°C | 5.7°C | 3.5°C | 12.4°C | -1.8°C | 84 mm | 81% | 2.1 m/s | 3 |
| 2019 | 9.9°C | 7.0°C | 4.2°C | 16.9°C | -1.9°C | 35 mm | 77% | 1.6 m/s | 3.6 |
| 2018 | 8.8°C | 6.5°C | 4.3°C | 13.8°C | 0.8°C | 92 mm | 82% | 1.7 m/s | 2.7 |
| 2017 🌧️ | 7.8°C | 6.1°C | 4.4°C | 11.5°C | 0.7°C | 253 mm | 89% | 2.3 m/s | 2 |
| 2016 | 10.5°C | 8.2°C | 6.0°C | 16.4°C | 2.7°C | 187 mm | 84% | 2.3 m/s | 2.6 |
| 2015 | 11.2°C | 9.0°C | 6.9°C | 15.7°C | 2.7°C | 160 mm | 82% | 1.6 m/s | 2.7 |
| 2014 | 8.9°C | 6.8°C | 4.7°C | 11.9°C | 0.6°C | 201 mm | 86% | 1.9 m/s | 2.4 |
| 2013 | 9.1°C | 6.8°C | 4.6°C | 14.9°C | 0.9°C | 156 mm | 82% | 1.8 m/s | 2.8 |
| 2012 | 7.3°C | 5.4°C | 3.5°C | 12.3°C | 1.4°C | 167 mm | 83% | 2.4 m/s | 2.2 |
| 2011 | 8.3°C | 6.2°C | 4.2°C | 12.0°C | 1.2°C | 171 mm | 87% | 2.3 m/s | 2.1 |
| 2010 | 9.6°C | 7.3°C | 4.9°C | 14.6°C | 1.5°C | 101 mm | 83% | 1.9 m/s | 2.5 |
| 2009 | 6.9°C | 4.6°C | 2.3°C | 11.7°C | -4.7°C | 117 mm | 80% | 2.3 m/s | 2.7 |
| 2008 | 7.4°C | 5.4°C | 3.3°C | 9.9°C | 0.0°C | 99 mm | 84% | 1.9 m/s | 2.5 |
| 2007 | 8.9°C | 7.0°C | 5.0°C | 14.0°C | 0.0°C | 238 mm | 86% | 1.9 m/s | 2.2 |
| 2006 | 8.8°C | 6.4°C | 4.1°C | 12.7°C | -0.1°C | 103 mm | 83% | 2.3 m/s | 2.5 |
| 2005 | 10.9°C | 8.5°C | 6.0°C | 14.5°C | 2.3°C | 132 mm | 83% | 1.8 m/s | 2.7 |
| 2004 | 9.9°C | 7.4°C | 4.9°C | 17.4°C | 1.1°C | 129 mm | 85% | 2 m/s | 2.8 |
| 2003 | 9.1°C | 7.1°C | 5.1°C | 11.9°C | 0.3°C | 183 mm | 85% | 2.1 m/s | 2.1 |
| 2002 ❄️ | 6.4°C | 4.2°C | 2.0°C | 12.0°C | -4.0°C | 101 mm | 83% | 2.3 m/s | 2.5 |
| 2001 | 9.0°C | 6.6°C | 4.1°C | 12.7°C | 0.7°C | 126 mm | 85% | 2 m/s | 2.5 |
| 2000 | 8.5°C | 6.4°C | 4.3°C | 11.3°C | 1.6°C | 135 mm | 84% | 2 m/s | 2.7 |
| 1999 | 8.0°C | 5.9°C | 3.7°C | 13.2°C | -0.6°C | 151 mm | 85% | 2.4 m/s | 2.5 |
| 1998 | 9.7°C | 7.5°C | 5.3°C | 13.9°C | 0.6°C | 86 mm | 82% | 1.7 m/s | 2.8 |
| 1997 | 8.0°C | 5.9°C | 3.8°C | 11.5°C | -0.6°C | 242 mm | 85% | 2.5 m/s | 2.5 |
| 1996 | 9.4°C | 7.0°C | 4.6°C | 13.5°C | 0.2°C | 64 mm | 78% | 1.9 m/s | 2.9 |
| 1995 | 9.6°C | 7.1°C | 4.6°C | 15.8°C | -0.4°C | 120 mm | 78% | 2.1 m/s | 2.8 |
| 1994 | 10.4°C | 7.6°C | 4.8°C | 17.8°C | 0.9°C | 106 mm | 80% | 1.8 m/s | 2.8 |
| 1993 | 9.9°C | 7.3°C | 4.6°C | 12.4°C | 1.6°C | 135 mm | 82% | 2 m/s | 2.6 |
| 1992 🔥 | 12.9°C | 9.9°C | 6.9°C | 16.5°C | 4.9°C | 25 mm | 76% | 1.2 m/s | 3.5 |
| 1991 | 7.9°C | 5.5°C | 3.0°C | 13.2°C | -0.3°C | 93 mm | 82% | 1.9 m/s | 3 |
| 1990 | 9.7°C | 6.9°C | 4.1°C | 13.8°C | 0.5°C | 102 mm | 81% | 1.7 m/s | 3.1 |
| 1989 | 7.3°C | 5.2°C | 3.1°C | 10.9°C | -3.2°C | 148 mm | 85% | 2.1 m/s | 2.5 |
| 1988 | 9.2°C | 6.8°C | 4.4°C | 12.6°C | 0.3°C | 147 mm | 82% | 2.1 m/s | 2.5 |
| 1987 | 10.4°C | 7.9°C | 5.5°C | 15.9°C | 1.6°C | 153 mm | 82% | 1.8 m/s | 2.9 |
| 1986 | 10.2°C | 7.9°C | 5.5°C | 13.8°C | 2.8°C | 141 mm | 84% | 1.8 m/s | 2.7 |
| 1985 | 8.3°C | 5.6°C | 2.9°C | 13.0°C | 0.0°C | 102 mm | 81% | 2.1 m/s | 2.9 |
| 1984 | 10.1°C | 7.8°C | 5.4°C | 13.8°C | 2.6°C | 127 mm | 85% | 1.6 m/s | 2.8 |
| 1983 | 10.6°C | 8.2°C | 5.7°C | 12.9°C | 2.5°C | 157 mm | 84% | 2.1 m/s | — |
| 1982 | 8.3°C | 5.6°C | 2.9°C | 11.2°C | 0.6°C | 74 mm | 81% | 1.8 m/s | — |
| 1981 | 11.0°C | 8.1°C | 5.3°C | 13.8°C | 2.9°C | 101 mm | 79% | 1.8 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 9.1°C with lows near 4.5°C (mean 6.8°C), based on 45 years of NASA POWER data.
March averages 130 mm of rainfall in Surrey, a relatively wet time of year. The wettest on record was 253 mm in 2017.
The hottest March reached 17.8°C in 1994. The coldest dipped to -4.7°C in 2009.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have fallen by about 0.5°C — but days and nights have moved in opposite directions. Overnight lows rose from 4.4°C to 4.5°C while daytime highs eased from 9.7°C to 8.7°C, narrowing the gap between day and night.
March is one of the cooler months of the year in Surrey and a relatively wet time of year, so plan for around 9.1°C daytime highs and 4.5°C at night.
Not quite — March is the 5th coolest month in Surrey, averaging 6.8°C.
For March in Surrey, pack warm layers and a jacket for chilly mornings, with typical highs of 9.1°C and lows of 4.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 83% — quite humid.
Average wind speed in March is 2 m/s. The windiest March on record averaged 2.5 m/s (1997).
The wettest March on record was 2017 with 253 mm. On average, March sees 130 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 Surrey behaves each March, 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 March specifically, along with year-by-year records and how the month has changed over the decades.
