Foothill Ranch, United States — Weather in May 2027

Climate Overview

Foothill Ranch, United States in May has warm conditions, with highs averaging 21.9°C (71°F). Rain is rare, falling on about 2 days this month. Sea temperature stays cool at 18.6°C (65°F).

This month falls at the end of Spring.

Temperatures remain fairly steady throughout May, with daily highs around 22°C (72°F).

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

Expect around 11.3h of sunshine at the start of May, increasing to 12.4h by the end.

The warmest days tend to fall around the 31th, averaging 22.5°C (73°F).

Temperatures will rise further into June.

Monthly May Averages

Temperature

22°C / 13°C

Feels Like

22°C / 13°C

Rain

2 days · 8 mm

Sunshine

11.8h / day

Humidity

72% — Humid

Wind

15 km/h

Wind Direction

SW (217°)

Gusts

36 km/h

Daylight

13.9 h

Cloud Cover

45%

Clear Sky Days

6.1

UV Index

7.9 — Very High

Sea Temperature

19°C

Dew Point

13°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 05:51

Daylight 13.9h

Sunset 19:46

What to Expect

Daytime temperatures around 22°C (71°F) are ideal for full-day outdoor exploration.

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

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

Compare Months

2days (21 mm) Excellent

2days (8 mm) Excellent

1days (2 mm) Excellent

0days (1 mm) Excellent

0days (8 mm) Excellent

1days (7 mm) Excellent

2days (11 mm) Excellent

3days (34 mm) Excellent

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	18°C / 8°C	16°C / 6°C	6days (81 mm) Good	8.2h Good	73% Muggy	3.8 Moderate	Good	View Details
February	19°C / 8°C	17°C / 6°C	6days (69 mm) Good	8.9h Good	70% Muggy	4.4 Moderate	Good	View Details
March	19°C / 9°C	18°C / 8°C	8days (74 mm) Wet	10h Excellent	76% Humid	6.1 High	Good	View Details
April	21°C / 12°C	21°C / 11°C	2days (21 mm) Excellent	11.2h Excellent	71% Muggy	7.4 Very High	Excellent	View Details
May	22°C / 13°C	22°C / 13°C	2days (8 mm) Excellent	11.8h Excellent	72% Muggy	7.9 Very High	Excellent	View Details
June best	26°C / 16°C	27°C / 16°C	1days (2 mm) Excellent	13h Excellent	69% Muggy	8.4 Very High	Excellent	View Details
July best	29°C / 18°C	31°C / 20°C	0days (1 mm) Excellent	13.2h Excellent	66% Muggy	8.5 Very High	Excellent	View Details
August	29°C / 19°C	32°C / 21°C	0days (8 mm) Excellent	12.1h Excellent	68% Muggy	8 Very High	Excellent	View Details
September best	28°C / 18°C	30°C / 20°C	1days (7 mm) Excellent	11.1h Excellent	70% Muggy	7.1 Very High	Excellent	View Details
October best	26°C / 15°C	26°C / 15°C	2days (11 mm) Excellent	10.1h Excellent	68% Muggy	5.7 High	Excellent	View Details
November	22°C / 11°C	21°C / 10°C	3days (34 mm) Excellent	9h Good	66% Muggy	4.3 Moderate	Excellent	View Details
December	19°C / 9°C	17°C / 7°C	5days (63 mm) Good	7.8h Good	71% Muggy	3.5 Moderate	Good	View Details

What to Wear

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

Packing List

Sunscreen (SPF 30+)SunglassesComfortable walking shoes

Frequently Asked Questions

Expand all

Is May a good time to visit Foothill Ranch?

May is typically excellent for visiting Foothill Ranch, with average highs of 22°C (71°F) and around 2 rainy days. Foothill Ranch, United States in May has warm conditions, with highs averaging 21.9°C (71°F). Rain is rare, falling on a

Does it rain a lot in Foothill Ranch in May?

Foothill Ranch typically sees around 2 rainy days in May with 8 mm (0.3 in) of total rainfall. An umbrella should suffice.

Does it get cold at night in Foothill Ranch in May?

Evenings in Foothill Ranch during May are mild at 13°C (56°F). A light cardigan is usually enough.

What should I pack for Foothill Ranch in May?

With highs of 22°C (71°F) and lows of 13°C (56°F) in May, we recommend: Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. Comfortable walking shoes are essential.

Is May among the best months weather-wise in Foothill Ranch?

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

What is the UV index in Foothill Ranch in May?

The average UV index in Foothill Ranch 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 Foothill Ranch in May?

Foothill Ranch gets approximately 14 hours of daylight per day in May, with around 12 hours of sunshine.

Does it snow in Foothill Ranch in May?

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

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