May is one of the warmer months of the year in Brunswick, with average highs near 25.7°C and lows around 22.1°C (mean 23.9°C). It is one of the drier months, averaging 75 mm of rainfall and 76% relative humidity across the period.
May is one of the warmer months of the year in Brunswick. Across 45 years of records, the warmest May in Brunswick was 2019 — when the month averaged 25.9°C — while the coldest was 1992 at 22.3°C. Typical May days reach 25.7°C with nights near 22.1°C. The long-term trend is warming, about 0.2°C per decade.
May is one of the drier months in Brunswick, averaging 75 mm of rainfall. The wettest May on record was 2009 with 242 mm, while the driest was 1996 at 15 mm.
Relative humidity in Brunswick during May averages 76%. The most humid May was 2009 at 84%, and the least humid was 1981 at 67%.
May receives about 6.4 kWh/m²/day of solar energy in Brunswick. The sunniest Mays were 2000, 2015 and 2021, among others at 6.9 kWh/m²/day, and the cloudiest was 2023 at 5.4.
Average wind speed in Brunswick during May is 3.4 m/s. The windiest May was 2007 at 4.1 m/s, while the calmest were 1998 and 2014 at 2.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.3°C | 23.8°C | 23.9°C | 24.2°C | 24.4°C | +1.1°C |
| Avg High | 25.2°C | 25.6°C | 25.8°C | 26.0°C | 26.2°C | +1°C |
| Avg Low | 21.5°C | 22.0°C | 21.9°C | 22.4°C | 22.6°C | +1.1°C |
| Avg Rain | 62 mm | 63 mm | 69 mm | 101 mm | 81 mm | +19 mm |
May temperatures in Brunswick have risen by about 1.1°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 12.2°C (1992) to a record high of 32.9°C (2019).
Rainfall in May is one of the drier months, averaging 75 mm, with a wettest year of 242 mm.
One of the best times to visit Brunswick
May is one of the best times to visit Brunswick. Expect days averaging 25.7°C and nights around 22.1°C (mean 23.9°C) — warmer than Brunswick's yearly average — with moderate rainfall (75 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 | 27.8°C | 25.7°C | 23.6°C | 31.7°C | 21.2°C | 148 mm | 79% | 3.2 m/s | 5.9 |
| 2024 | 27.5°C | 25.6°C | 23.8°C | 31.0°C | 21.8°C | 104 mm | 80% | 3 m/s | 6.1 |
| 2023 | 25.1°C | 23.3°C | 21.5°C | 27.4°C | 16.6°C | 92 mm | 80% | 3.7 m/s | 5.4 |
| 2022 | 26.2°C | 24.7°C | 23.1°C | 29.9°C | 18.4°C | 66 mm | 80% | 3.3 m/s | 6.5 |
| 2021 | 25.4°C | 23.6°C | 21.8°C | 29.4°C | 16.6°C | 25 mm | 72% | 3.7 m/s | 6.9 |
| 2020 | 25.4°C | 23.5°C | 21.6°C | 30.4°C | 15.4°C | 53 mm | 77% | 3.5 m/s | 6.6 |
| 2019 🔥 | 27.7°C | 25.9°C | 24.1°C | 32.9°C | 21.5°C | 41 mm | 76% | 3.4 m/s | 6.7 |
| 2018 | 25.3°C | 24.0°C | 22.8°C | 27.7°C | 19.4°C | 164 mm | 83% | 3.3 m/s | 6 |
| 2017 | 26.8°C | 24.5°C | 22.3°C | 30.5°C | 15.0°C | 211 mm | 73% | 3.7 m/s | 6.7 |
| 2016 | 25.8°C | 23.9°C | 21.9°C | 29.8°C | 14.8°C | 120 mm | 75% | 3.1 m/s | 6.4 |
| 2015 | 25.9°C | 24.3°C | 22.7°C | 30.2°C | 17.0°C | 25 mm | 76% | 3.5 m/s | 6.9 |
| 2014 | 25.3°C | 23.4°C | 21.4°C | 30.5°C | 16.3°C | 108 mm | 80% | 2.8 m/s | 6.4 |
| 2013 | 24.2°C | 22.5°C | 20.8°C | 27.7°C | 15.1°C | 91 mm | 77% | 3.8 m/s | 6.4 |
| 2012 | 26.1°C | 24.5°C | 22.9°C | 29.2°C | 20.7°C | 179 mm | 79% | 3.8 m/s | 6 |
| 2011 | 26.2°C | 24.1°C | 22.0°C | 31.3°C | 17.2°C | 21 mm | 74% | 3.6 m/s | 6.8 |
| 2010 | 26.2°C | 24.7°C | 23.2°C | 29.1°C | 20.2°C | 49 mm | 79% | 3.4 m/s | 6.6 |
| 2009 🌧️ | 25.4°C | 23.7°C | 22.0°C | 29.5°C | 17.9°C | 242 mm | 84% | 3.4 m/s | 5.5 |
| 2008 | 25.5°C | 23.5°C | 21.6°C | 28.7°C | 18.4°C | 32 mm | 74% | 3.6 m/s | 6.6 |
| 2007 | 24.2°C | 22.8°C | 21.5°C | 27.2°C | 16.0°C | 24 mm | 74% | 4.1 m/s | 6.5 |
| 2006 | 26.4°C | 23.8°C | 21.1°C | 31.1°C | 18.0°C | 38 mm | 72% | 3.2 m/s | 6.5 |
| 2005 | 24.6°C | 22.7°C | 20.8°C | 28.2°C | 15.3°C | 96 mm | 78% | 3 m/s | 6.2 |
| 2004 | 26.4°C | 24.6°C | 22.8°C | 30.8°C | 16.5°C | 57 mm | 76% | 3.6 m/s | 6.8 |
| 2003 | 26.8°C | 24.7°C | 22.6°C | 29.7°C | 20.0°C | 110 mm | 80% | 3.1 m/s | 6 |
| 2002 | 25.8°C | 24.1°C | 22.4°C | 30.2°C | 17.3°C | 27 mm | 75% | 4 m/s | 6.8 |
| 2001 | 26.2°C | 24.0°C | 21.8°C | 31.4°C | 19.5°C | 40 mm | 73% | 3.3 m/s | 6.8 |
| 2000 | 26.5°C | 24.6°C | 22.7°C | 30.9°C | 19.8°C | 29 mm | 74% | 3.6 m/s | 6.9 |
| 1999 | 24.8°C | 23.0°C | 21.1°C | 29.6°C | 13.1°C | 41 mm | 76% | 3.6 m/s | 6.4 |
| 1998 | 26.3°C | 24.3°C | 22.4°C | 30.4°C | 19.0°C | 41 mm | 79% | 2.8 m/s | 6.6 |
| 1997 | 24.7°C | 22.9°C | 21.2°C | 28.4°C | 17.0°C | 85 mm | 76% | 3.6 m/s | 6.2 |
| 1996 | 26.4°C | 24.5°C | 22.7°C | 30.5°C | 16.2°C | 15 mm | 76% | 3.2 m/s | 6.9 |
| 1995 | 26.7°C | 24.8°C | 23.0°C | 31.7°C | 19.2°C | 43 mm | 75% | 3.6 m/s | 6.1 |
| 1994 | 25.8°C | 23.7°C | 21.6°C | 29.6°C | 18.1°C | 91 mm | 75% | 3.6 m/s | 6.4 |
| 1993 | 24.4°C | 22.9°C | 21.4°C | 28.0°C | 18.5°C | 32 mm | 77% | 3.2 m/s | 6.4 |
| 1992 ❄️ | 24.4°C | 22.3°C | 20.2°C | 29.2°C | 12.2°C | 91 mm | 76% | 3.4 m/s | 6 |
| 1991 | 26.6°C | 25.5°C | 24.3°C | 30.5°C | 22.5°C | 153 mm | 83% | 3.3 m/s | 5.6 |
| 1990 | 26.0°C | 24.2°C | 22.4°C | 29.9°C | 18.5°C | 43 mm | 74% | 3.6 m/s | 6.6 |
| 1989 | 25.5°C | 23.4°C | 21.3°C | 31.2°C | 16.4°C | 63 mm | 72% | 3.4 m/s | 6.3 |
| 1988 | 24.4°C | 22.5°C | 20.6°C | 27.4°C | 16.4°C | 53 mm | 73% | 3.4 m/s | 6.4 |
| 1987 | 24.5°C | 23.2°C | 22.0°C | 27.0°C | 18.1°C | 43 mm | 79% | 3.5 m/s | 6.3 |
| 1986 | 25.6°C | 23.6°C | 21.7°C | 30.6°C | 18.5°C | 35 mm | 72% | 3.4 m/s | 6.5 |
| 1985 | 26.2°C | 24.1°C | 22.0°C | 29.5°C | 18.9°C | 65 mm | 72% | 3.2 m/s | 6.2 |
| 1984 | 24.7°C | 23.0°C | 21.3°C | 28.3°C | 16.5°C | 109 mm | 77% | 3.3 m/s | 6 |
| 1983 | 24.6°C | 23.0°C | 21.4°C | 27.1°C | 17.2°C | 38 mm | 79% | 3.3 m/s | — |
| 1982 | 25.2°C | 23.7°C | 22.1°C | 27.8°C | 18.0°C | 92 mm | 76% | 2.9 m/s | — |
| 1981 | 26.0°C | 23.5°C | 21.0°C | 30.4°C | 15.8°C | 61 mm | 67% | 3.4 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 25.7°C with lows near 22.1°C (mean 23.9°C), based on 45 years of NASA POWER data.
May averages 75 mm of rainfall in Brunswick, one of the drier months. The wettest on record was 242 mm in 2009.
The hottest May reached 32.9°C in 2019. The coldest dipped to 12.2°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.1°C. Daytime highs moved from 25.3°C to 26.4°C and overnight lows from 21.6°C to 22.8°C over the same span.
May is one of the warmer months of the year in Brunswick and one of the drier months, so plan for around 25.7°C daytime highs and 22.1°C at night.
Not quite — May is the 8th coolest month in Brunswick, averaging 23.9°C.
For May in Brunswick, pack light layers you can adjust through the day, with typical highs of 25.7°C and lows of 22.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 76% — quite humid.
Average wind speed in May is 3.4 m/s. The windiest May on record averaged 4.1 m/s (2007).
The wettest May on record was 2009 with 242 mm. On average, May sees 75 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 Brunswick 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.
