Hamden, United States — Weather in May 2027

Climate Overview

Hamden, United States in May has mild conditions, with highs averaging 19.3°C (67°F) and noticeably cooler mornings. Rain falls on about 12 days this month. Sea temperature stays cool at 14.1°C (57°F).

This month falls at the end of Spring.

Daily highs in May gradually rise from around 17°C (63°F) at the start to 22°C (71°F) by month's end.

Rainfall is heaviest during the first third of the month, while the middle tends to be drier.

Expect around 7.9h of sunshine at the start of May, increasing to 9.4h by the end.

The warmest days tend to fall around the 26th, averaging 22.1°C (72°F).

Compared to April, this month is about 5°C warmer with 0 fewer rainy days. Temperatures will rise further into June.

Monthly May Averages

Temperature

19°C / 11°C

Feels Like

19°C / 9°C

Rain

12 days · 107 mm

Sunshine

9.6h / day

Humidity

75% — Humid

Wind

16 km/h

Wind Direction

WSW (247°)

Gusts

40 km/h

Daylight

14.5 h

Cloud Cover

66%

Clear Sky Days

2.8

UV Index

6 — High

Sea Temperature

14°C

Dew Point

11°C — Comfortable

Moon Phase

Waxing Gibbous · 66%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 05:34

Daylight 14.5h

Sunset 20:04

What to Expect

Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Rain usually comes in shorter passing showers rather than all-day rain.

Recent yearly records for May have stayed close to the long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	4°C / -3°C	-1°C / -8°C	9days (88 mm) Wet	6.1h Fair	67% Muggy	2.3 Moderate	Poor	View Details
February	5°C / -2°C	1°C / -7°C	10days (87 mm) Wet	6.8h Fair	69% Muggy	3.3 Moderate	Poor	View Details
March	9°C / 1°C	6°C / -4°C	11days (99 mm) Wet	8.2h Good	66% Muggy	4.5 Moderate	Poor	View Details
April	14°C / 6°C	12°C / 2°C	12days (110 mm) Wet	8.8h Good	69% Muggy	5.2 High	Fair	View Details
May	19°C / 11°C	19°C / 9°C	12days (107 mm) Wet	9.6h Good	75% Muggy	6 High	Good	View Details
June best	25°C / 16°C	26°C / 16°C	11days (85 mm) Wet	11.1h Excellent	74% Muggy	7 High	Excellent	View Details
July best	28°C / 21°C	31°C / 23°C	14days (123 mm) Wet	11.4h Excellent	77% Humid	7.2 Very High	Good	View Details
August best	27°C / 20°C	30°C / 21°C	11days (90 mm) Wet	10.6h Excellent	75% Muggy	6.4 High	Excellent	View Details
September best	24°C / 16°C	24°C / 16°C	9days (114 mm) Wet	8.7h Good	75% Muggy	5.2 High	Excellent	View Details
October best	18°C / 11°C	17°C / 9°C	9days (117 mm) Wet	7.3h Good	74% Muggy	4 Moderate	Good	View Details
November	11°C / 4°C	8°C / 1°C	8days (84 mm) Wet	6.8h Fair	69% Muggy	2.8 Moderate	Poor	View Details
December	6°C / 0°C	2°C / -5°C	10days (123 mm) Wet	5.6h Fair	70% Muggy	2 Low	Poor	View Details

What to Wear

Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

Warm evening layerUmbrellaWaterproof jacketComfortable walking shoes

Frequently Asked Questions

Expand all

Is May a good time to visit Hamden?

May is typically good for visiting Hamden, with average highs of 19°C (67°F) and around 12 rainy days. Hamden, United States in May has mild conditions, with highs averaging 19.3°C (67°F) and noticeably cooler mornings. Rai

Does it rain a lot in Hamden in May?

Hamden typically sees around 12 rainy days in May with 107 mm (4.2 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Hamden in May?

Nights in Hamden during May are cool at around 11°C (52°F). Bring a jacket or sweater for evenings.

What should I pack for Hamden in May?

With highs of 19°C (67°F) and lows of 11°C (52°F) in May, we recommend: Warm evening layer, Umbrella, Waterproof jacket, Comfortable walking shoes. Comfortable walking shoes are essential.

Is May among the best months weather-wise in Hamden?

May is not the most favourable month weather-wise in Hamden. Consider visiting during months with milder temperatures or less rainfall for a better experience.

What is the UV index in Hamden in May?

The average UV index in Hamden during May is 6 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.

How many hours of daylight are there in Hamden in May?

Hamden gets approximately 15 hours of daylight per day in May, with around 10 hours of sunshine.

Does it snow in Hamden in May?

Snow is uncommon in Hamden during May based on 10-year climate averages.

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