Berkeley, United States — Weather in May 2027

Climate Overview

Berkeley, United States in May has warm conditions, with highs averaging 22.9°C (73°F). Rain is rare, falling on about 2 days this month. Temperatures drop noticeably between day and night. Sea temperature stays cool at 18.5°C (65°F).

This month falls at the end of Spring.

Temperatures remain fairly steady throughout May, with daily highs around 24°C (75°F).

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

Expect around 12.0h of sunshine at the start of May, increasing to 13.0h by the end.

The warmest days tend to fall around the 31th, averaging 25°C (77°F).

Compared to April, this month is about 3°C warmer with 2 fewer rainy days. Temperatures will rise further into June.

Monthly May Averages

Temperature

23°C / 11°C

Feels Like

22°C / 9°C

Rain

2 days · 14 mm

Sunshine

12.6h / day

Humidity

66% — Humid

Wind

20 km/h

Wind Direction

WSW (253°)

Gusts

45 km/h

Daylight

14.2 h

Cloud Cover

44%

Clear Sky Days

7.8

UV Index

7.9 — Very High

Sea Temperature

19°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 06:00

Daylight 14.2h

Sunset 20:13

What to Expect

Daytime temperatures around 23°C (73°F) are ideal for full-day outdoor exploration.

Rain is uncommon in this month, so most days stay dry from morning through evening.

3 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

2days (14 mm) Excellent

0days (1 mm) Excellent

0days (0 mm) Excellent

0days (0 mm) Excellent

0days (2 mm) Excellent

2days (23 mm) Excellent

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	14°C / 6°C	13°C / 4°C	10days (103 mm) Wet	6.8h Fair	82% Humid	2.9 Moderate	Fair	View Details
February	16°C / 6°C	14°C / 4°C	7days (81 mm) Good	8.4h Good	75% Muggy	3.8 Moderate	Fair	View Details
March	17°C / 7°C	15°C / 5°C	11days (86 mm) Wet	9.4h Good	76% Humid	5.4 High	Good	View Details
April	20°C / 9°C	19°C / 7°C	4days (25 mm) Good	11h Excellent	71% Muggy	6.9 High	Good	View Details
May	23°C / 11°C	22°C / 9°C	2days (14 mm) Excellent	12.6h Excellent	66% Muggy	7.9 Very High	Excellent	View Details
June best	26°C / 13°C	26°C / 11°C	0days (1 mm) Excellent	13.4h Excellent	63% Muggy	8.2 Very High	Excellent	View Details
July best	27°C / 13°C	26°C / 12°C	0days (0 mm) Excellent	13.2h Excellent	68% Muggy	8.2 Very High	Excellent	View Details
August best	27°C / 14°C	27°C / 14°C	0days (0 mm) Excellent	12.4h Excellent	69% Muggy	7.6 Very High	Excellent	View Details
September best	27°C / 14°C	27°C / 14°C	0days (2 mm) Excellent	11.3h Excellent	68% Muggy	6.4 High	Excellent	View Details
October best	25°C / 12°C	23°C / 11°C	2days (23 mm) Excellent	9.6h Good	64% Muggy	5 Moderate	Excellent	View Details
November	18°C / 9°C	17°C / 7°C	6days (49 mm) Good	8h Good	74% Muggy	3.4 Moderate	Good	View Details
December	14°C / 6°C	13°C / 4°C	9days (92 mm) Wet	6.5h Fair	81% Humid	2.7 Moderate	Fair	View Details

What to Wear

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

Temperatures drop significantly at night, so pack layers you can add or remove throughout the day.

Packing List

Warm evening layerSunscreen (SPF 30+)SunglassesComfortable walking shoes

Frequently Asked Questions

Expand all

Is May a good time to visit Berkeley?

May is typically excellent for visiting Berkeley, with average highs of 23°C (73°F) and around 2 rainy days. Berkeley, United States in May has warm conditions, with highs averaging 22.9°C (73°F). Rain is rare, falling on about 2

Does it rain a lot in Berkeley in May?

Berkeley typically sees around 2 rainy days in May with 14 mm (0.6 in) of total rainfall. An umbrella should suffice.

Does it get cold at night in Berkeley in May?

Nights in Berkeley during May are cool at around 11°C (51°F). Bring a jacket or sweater for evenings.

What should I pack for Berkeley in May?

With highs of 23°C (73°F) and lows of 11°C (51°F) in May, we recommend: Warm evening layer, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. Comfortable walking shoes are essential.

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

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

What is the UV index in Berkeley in May?

The average UV index in Berkeley during May is 8 (very high). Strong sun protection is essential — SPF 50+, protective clothing, and avoid prolonged outdoor exposure during peak hours.

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

Berkeley gets approximately 14 hours of daylight per day in May, with around 13 hours of sunshine.

Does it snow in Berkeley in May?

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

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