May is one of the warmer months of the year in Cranbrook, with average highs near 14.9°C and lows around 2.1°C (mean 8.5°C). It is a relatively wet time of year, averaging 59 mm of rainfall and 69% relative humidity across the period.
May is one of the warmer months of the year in Cranbrook. Across 45 years of records, the warmest May in Cranbrook was 2023 — when the month averaged 13.4°C — while the coldest was 1996 at 5.2°C. Typical May days reach 14.9°C with nights near 2.1°C. The long-term May temperature trend is broadly flat.
May is a relatively wet time of year in Cranbrook, averaging 59 mm of rainfall. The wettest May on record was 1998 with 129 mm, while the driest was 2001 at 22 mm.
Relative humidity in Cranbrook during May averages 69%. The most humid May was 1996 at 80%, and the least humid was 2001 at 57%.
May receives about 5.4 kWh/m²/day of solar energy in Cranbrook. The sunniest Mays were 2009 and 2025 at 6.1 kWh/m²/day, and the cloudiest was 2022 at 4.5.
Average wind speed in Cranbrook during May is 0.3 m/s. The windiest Mays were 2022, 2023 and 2025, among others at 0.3 m/s, while the calmest were 2019, 2020 and 2024, among others at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 8.4°C | 8.6°C | 8.1°C | 8.5°C | 9.0°C | +0.6°C |
| Avg High | 15.0°C | 15.0°C | 14.5°C | 14.8°C | 15.6°C | +0.6°C |
| Avg Low | 1.9°C | 2.1°C | 1.8°C | 2.2°C | 2.5°C | +0.6°C |
| Avg Rain | 52 mm | 73 mm | 57 mm | 57 mm | 54 mm | +2 mm |
May temperatures in Cranbrook have risen by about 1.3°C between 1981–1985 and 2021–2025.
May has ranged from a record low of -5.8°C (1982) to a record high of 30°C (1986).
Rainfall in May is a relatively wet time of year, averaging 59 mm, with a wettest year of 129 mm.
A good time to visit Cranbrook
May is a good time to visit Cranbrook, with days averaging 14.9°C and nights around 2.1°C (mean 8.5°C, warmer than Cranbrook's yearly average) and moderate rainfall. August and July are marginally more temperate, but May still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 16.8°C | 9.8°C | 2.9°C | 25.9°C | -3.8°C | 46 mm | 68% | 0.3 m/s | 6.1 |
| 2024 | 13.7°C | 7.4°C | 1.1°C | 22.4°C | -4.8°C | 50 mm | 73% | 0.2 m/s | 5 |
| 2023 🔥 | 20.3°C | 13.4°C | 6.5°C | 26.0°C | 2.1°C | 72 mm | 68% | 0.3 m/s | 5.9 |
| 2022 | 12.2°C | 6.5°C | 0.8°C | 16.7°C | -3.8°C | 48 mm | 73% | 0.3 m/s | 4.5 |
| 2021 | 15.8°C | 8.7°C | 1.7°C | 26.0°C | -2.8°C | 33 mm | 59% | 0.3 m/s | 5.3 |
| 2020 | 14.5°C | 8.1°C | 1.8°C | 25.5°C | -4.3°C | 74 mm | 71% | 0.2 m/s | 4.8 |
| 2019 | 15.9°C | 9.3°C | 2.7°C | 26.1°C | -2.7°C | 40 mm | 68% | 0.2 m/s | 4.9 |
| 2018 | 18.2°C | 11.7°C | 5.2°C | 23.8°C | -1.5°C | 46 mm | 72% | 0.3 m/s | 5.9 |
| 2017 | 15.2°C | 8.9°C | 2.6°C | 24.1°C | -4.4°C | 50 mm | 72% | 0.3 m/s | 5.6 |
| 2016 | 15.6°C | 9.0°C | 2.5°C | 21.5°C | -2.6°C | 87 mm | 71% | 0.3 m/s | 5.5 |
| 2015 | 15.7°C | 8.8°C | 1.8°C | 21.8°C | -2.6°C | 43 mm | 68% | 0.3 m/s | 5.8 |
| 2014 | 14.3°C | 8.4°C | 2.4°C | 20.3°C | -4.7°C | 63 mm | 72% | 0.3 m/s | 5.4 |
| 2013 | 15.4°C | 9.1°C | 2.8°C | 22.4°C | -5.2°C | 73 mm | 70% | 0.3 m/s | 5.6 |
| 2012 | 13.0°C | 6.9°C | 0.8°C | 23.2°C | -4.7°C | 37 mm | 70% | 0.3 m/s | 5.5 |
| 2011 | 12.1°C | 6.1°C | 0.1°C | 18.2°C | -5.4°C | 66 mm | 74% | 0.3 m/s | 5 |
| 2010 | 12.2°C | 6.4°C | 0.6°C | 23.0°C | -4.4°C | 65 mm | 68% | 0.3 m/s | 4.7 |
| 2009 | 14.3°C | 7.9°C | 1.4°C | 24.4°C | -2.9°C | 43 mm | 68% | 0.3 m/s | 6.1 |
| 2008 | 14.9°C | 8.5°C | 2.0°C | 24.4°C | -4.3°C | 48 mm | 71% | 0.3 m/s | 5 |
| 2007 | 15.0°C | 8.7°C | 2.4°C | 24.2°C | -3.1°C | 79 mm | 69% | 0.3 m/s | 5.7 |
| 2006 | 15.5°C | 9.5°C | 3.5°C | 27.1°C | -3.8°C | 57 mm | 69% | 0.3 m/s | 5.9 |
| 2005 | 15.8°C | 9.1°C | 2.4°C | 23.8°C | -4.7°C | 60 mm | 69% | 0.3 m/s | 5.6 |
| 2004 | 13.9°C | 7.9°C | 1.9°C | 20.9°C | -2.3°C | 69 mm | 70% | 0.2 m/s | 5 |
| 2003 | 13.5°C | 7.6°C | 1.6°C | 26.0°C | -3.6°C | 43 mm | 71% | 0.3 m/s | 4.8 |
| 2002 | 12.1°C | 6.0°C | 0.0°C | 22.9°C | -5.5°C | 103 mm | 73% | 0.3 m/s | 4.6 |
| 2001 | 16.7°C | 9.2°C | 1.8°C | 28.3°C | -4.9°C | 22 mm | 57% | 0.3 m/s | 6 |
| 2000 | 13.1°C | 7.0°C | 0.8°C | 17.4°C | -4.8°C | 41 mm | 69% | 0.3 m/s | 5.4 |
| 1999 | 12.9°C | 6.7°C | 0.6°C | 25.0°C | -3.9°C | 52 mm | 68% | 0.3 m/s | 5.4 |
| 1998 🌧️ | 17.8°C | 10.7°C | 3.7°C | 23.4°C | -2.0°C | 129 mm | 66% | 0.3 m/s | 5.8 |
| 1997 | 14.4°C | 8.3°C | 2.1°C | 20.4°C | -2.9°C | 61 mm | 73% | 0.3 m/s | 5.6 |
| 1996 ❄️ | 10.3°C | 5.2°C | 0.1°C | 19.5°C | -5.5°C | 110 mm | 80% | 0.2 m/s | 5 |
| 1995 | 15.4°C | 8.6°C | 1.8°C | 25.0°C | -4.9°C | 46 mm | 67% | 0.3 m/s | 5.7 |
| 1994 | 16.0°C | 9.4°C | 2.8°C | 24.7°C | -2.1°C | 58 mm | 67% | 0.3 m/s | 5.5 |
| 1993 | 19.1°C | 11.6°C | 4.1°C | 27.7°C | -2.3°C | 48 mm | 65% | 0.3 m/s | 5.4 |
| 1992 | 17.6°C | 10.1°C | 2.5°C | 26.0°C | -3.8°C | 49 mm | 60% | 0.3 m/s | 5.5 |
| 1991 | 13.5°C | 7.5°C | 1.5°C | 19.3°C | -4.1°C | 59 mm | 75% | 0.3 m/s | 4.8 |
| 1990 | 13.4°C | 7.5°C | 1.6°C | 21.5°C | -2.4°C | 119 mm | 75% | 0.2 m/s | 5 |
| 1989 | 13.8°C | 7.6°C | 1.5°C | 19.9°C | -3.8°C | 64 mm | 68% | 0.3 m/s | 5.2 |
| 1988 | 16.2°C | 9.4°C | 2.6°C | 27.5°C | -4.0°C | 62 mm | 65% | 0.3 m/s | 5.6 |
| 1987 | 17.0°C | 9.9°C | 2.8°C | 25.0°C | -2.9°C | 32 mm | 62% | 0.3 m/s | 5.4 |
| 1986 | 15.7°C | 9.4°C | 3.0°C | 30.0°C | -4.5°C | 61 mm | 68% | 0.3 m/s | 5.5 |
| 1985 | 17.5°C | 10.5°C | 3.6°C | 26.5°C | -3.7°C | 29 mm | 60% | 0.3 m/s | 5.9 |
| 1984 | 11.7°C | 5.6°C | -0.5°C | 23.8°C | -4.9°C | 61 mm | 72% | 0.3 m/s | 4.9 |
| 1983 | 15.6°C | 8.8°C | 2.1°C | 27.6°C | -3.9°C | 23 mm | 68% | 0.3 m/s | — |
| 1982 | 13.0°C | 6.6°C | 0.1°C | 23.1°C | -5.8°C | 33 mm | 69% | 0.3 m/s | — |
| 1981 | 14.2°C | 8.2°C | 2.3°C | 19.8°C | -4.4°C | 100 mm | 74% | 0.3 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 14.9°C with lows near 2.1°C (mean 8.5°C), based on 45 years of NASA POWER data.
May averages 59 mm of rainfall in Cranbrook, a relatively wet time of year. The wettest on record was 129 mm in 1998.
The hottest May reached 30°C in 1986. The coldest dipped to -5.8°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.3°C. Daytime highs moved from 14.4°C to 15.8°C and overnight lows from 1.5°C to 2.6°C over the same span.
May is one of the warmer months of the year in Cranbrook and a relatively wet time of year, so plan for around 14.9°C daytime highs and 2.1°C at night.
Not quite — May is the 8th coolest month in Cranbrook, averaging 8.5°C.
For May in Cranbrook, pack warm layers and a jacket for chilly mornings, with typical highs of 14.9°C and lows of 2.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 69% — moderately humid.
Average wind speed in May is 0.3 m/s. The windiest May on record averaged 0.3 m/s (1981).
The wettest May on record was 1998 with 129 mm. On average, May sees 59 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 Cranbrook behaves each May, 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 May specifically, along with year-by-year records and how the month has changed over the decades.
