Hamilton weather in May

May in Hamilton: warm, rainy, with clean air — an excellent time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Hamilton🇧🇲 Bermuda · Bahamas & Bermuda · Island84
  1. 64Jan
  2. 71Feb
  3. 74Mar
  4. 82Apr
  5. 84May
  6. 83Jun
  7. 87Jul
  8. 85Aug
  9. 80Sep
  10. 76Oct
  11. 70Nov
  12. 69Dec

#3 of 12 months in Hamilton · #509 of 1413 destinations to visit in May · comfort 84/100 (tier A)

Days
25°C
Nights
20°C
Wet days
9
Sun
11.5 h
Humidity
80%
Daylight
14 h
Hamilton, Bermuda
Photo: R Danny A · CC BY-SA 4.0

Traveller notes on Hamilton in May

May is the month Bermuda's swimming season opens, and the forum's figures move fast inside it: the water runs cooler in early May and reaches the high 70s Fahrenheit by the end, occasionally into the low 80s, with our row's monthly 21.7C sitting at the cool end of that arc. Air temperatures they give as low-to-mid 70s rising to the low 80s - our row says 24.8C over 20C. The real selling point is rain, or the lack of it: May has the fewest wet days of the Bermudian year and the showers that come are brief, which our row renders as 9.1 precipitation days carrying 96.9mm, brief and heavy rather than persistent. The record: feels-like 26C, humidity 80 percent, a 27.9 kph wind and 11.5 hours of sun.
TheSeasonOpensLate · May · 1 month ago · Read more on Tripadvisor ↗

Other months in Hamilton

Regulars are specific that daytime temperatures typically run in the low-to-mid 70s Fahrenheit with cooler evenings in the mid-60s, and the first week of the month usually isn't real beach weather even if a warm afternoon can nudge into the low 70s. Our row backs that mild, genuinely wet and windy read, 22.4C over 17.4C nights feeling 15C, with a substantial 73.9mm of rain across 9.8 days and a real 33.6 kph wind. Regulars are consistent this remains pleasant enough for general touring, golf, tennis and walking rather than swimming, most visitors waiting for the water itself to warm up later in the season. The sea sits at a cool 20.9C, still too brisk for a comfortable swim for most. The record: humidity 75 percent, 10.8 hours of sun and AQI 49.
AprilNotBeachWeatherYetButPleasant · April · 1 month ago · Read more on Tripadvisor ↗
Regulars call this possibly the best month of the year here, with low-to-moderate humidity by the island's own standards and daytime temperatures in the comfortable low-to-high 70s to low 80s Fahrenheit range - though one thread specifically flags this as the month humidity starts climbing toward its May-through-August peak, hitting 80 percent in town. Our row backs the warm, increasingly humid read, 27.4C reading as a real 30C at 82 percent humidity, over 22.7C nights, with 123.1mm of rain across 14.2 days - regulars describe showers as typically brief and localized rather than washing out a full day. The sea sits at a swimmable 24.2C. The record: 11.5 hours of sun, a 26.1 kph wind and AQI 41.
PossiblyTheBestMonthOfTheYearHere · June · 1 month ago · Read more on Tripadvisor ↗
Bermuda-forum threads on October weather call it genuinely one of the best months of the year - daytime temperatures still comfortably in the high 70s to low 80s Fahrenheit, ocean water in the mid-to-high 70s and still good for swimming, without summer's peak crowds or prices. The catch regulars are upfront about: the chance of a longer rain stretch climbs compared to June or July, conditions less predictable this late in the season. Hurricane season technically runs through November, but posters are consistent that a direct hit is rare - Bermuda gets brushed by storms far more often than actually struck. Travel insurance still gets recommended as a low-cost precaution rather than a sign the risk is high. The record: 26.8C days feeling like 28C, 22.1C nights, a notably high 141mm across 13.5 days, a 25.9C sea, 75 percent humidity and wind averaging nearly 33 km/h.
HorseshoeBayOctoberRegular · October · 1 month ago · Read more on Tripadvisor ↗
August in Bermuda is described on the forum with one word repeated in four ways - hot, humid, steamy, sultry - with air in the high 70s to high 80s F and humidity from the high 70s into the low 90s percent. The compensation is the water, which regulars call bathwater warm at around the low 80s F. Rain is sudden, brief and very local, most often late at night or early morning. On hurricanes they are level-headed: June to November is the Atlantic season and late August into September is its least settled stretch, but direct hits on the island are not frequent. The record: 30.3C days that feel like 35C, 25.3C nights, 15 precipitation days, humidity 81 percent and a 28.7C sea.
BathwaterAtlantic · August · 1 month ago · Read more on Tripadvisor ↗

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Hamilton climate normals — May

Daytime high25°C / 77°F🌤 warm
Nighttime low20°C / 68°F
Feels like (high)26°C / 79°F
Sea temperature22°C / 71°F🌊 fresh
Rainfall97 mm / 3.8 in🌧 rainy
Rainy days9 days
Humidity80%💦 very humid
Dew point18°C / 65°F
Sunshine11.5 h/day
Daylight13.8 h
Wind28 km/h / 17 mph
Air quality (US AQI)42🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Hamilton in May

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

BusyBermuda Day(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Hamilton's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Best weatherHamilton's best weather comes in May, July and August — separate windows, not one continuous season.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Hamilton in May

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Sea warm enough to swim

    20 May – 10 Nov · usually

    The Gulf Stream keeps the water in far later than the latitude suggests, and October is still comfortable without a wetsuit. Between January and April it is genuinely cold.

  • Holiday

    Bermuda Day

    22–27 May · usuallyNational holidayCrowdedClosures

    A parade through Hamilton with majorettes and Gombey troupes, a half marathon derby in the morning, and by island convention the first day anyone gets in the sea. Front Street closes for it. Source ↗

What's on around the world in May →

Where is Hamilton?

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Hamilton in May — FAQ

Is May a good time to visit Hamilton?
May in Hamilton: warm, rainy, with clean air — an excellent time to visit. It ranks #3 of 12 months for Hamilton on SeasonMap's comfort score (84/100).
What is the weather like in Hamilton in May?
In May, Hamilton averages a daily high of 24.8°C and a low of 20°C, with about 96.9 mm of rain over roughly 9.1 rainy days.
What is the air quality in Hamilton in May?
Hamilton has a mean US Air Quality Index of about 42 in May.