Calamba, Philippines — Weather in May 2027

Climate Overview

Calamba, Philippines in May has hot conditions, with highs reaching 32.8°C (91°F) and afternoons the warmest part of the day. Rain falls on about 17 days this month, totalling around 171 mm.

This month falls at the end of Spring. The combination of heat and frequent rain creates tropical monsoon conditions.

Temperatures remain fairly steady throughout May, with daily highs around 33°C (91°F).

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

Expect around 11.5h of sunshine at the start of May, decreasing to 10.7h by the end.

Wind speeds ease off through the month, from 16 km/h (10 mph) to 12 km/h (7 mph).

The warmest days tend to fall around the 1th, averaging 33.4°C (92°F).

Compared to April, this month is about 0°C cooler with 11 more rainy days.

Monthly May Averages

Temperature

33°C / 26°C

Feels Like

39°C / 32°C

Rain

17 days · 171 mm

Sunshine

11h / day

Humidity

79% — Muggy

Wind

13 km/h

Wind Direction

ESE (104°)

Gusts

29 km/h

Daylight

12.8 h

Cloud Cover

66%

Clear Sky Days

1.7

UV Index

8.1 — Very High

Dew Point

26°C — Oppressive

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 05:30

Daylight 12.8h

Sunset 18:16

What to Expect

With midday temperatures reaching 33°C (91°F), schedule outdoor activities for early morning or late afternoon. Evenings remain warm enough for comfortable outdoor dining and night markets. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Rain most often builds later in the day, so mornings are typically the driest window and afternoon showers are more likely.

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

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January best	28°C / 23°C	31°C / 27°C	9days (82 mm) Wet	9.1h Good	82% Humid	6.4 High	Excellent	View Details
February best	29°C / 23°C	32°C / 26°C	5days (37 mm) Good	10h Excellent	80% Humid	7.3 Very High	Excellent	View Details
March	31°C / 24°C	35°C / 28°C	4days (19 mm) Good	11h Excellent	77% Humid	8.3 Very High	Fair	View Details
April	33°C / 25°C	37°C / 30°C	6days (28 mm) Good	11.4h Excellent	75% Muggy	8.8 Very High	Poor	View Details
May	33°C / 26°C	39°C / 32°C	17days (171 mm) Wet	11h Excellent	79% Humid	8.1 Very High	Poor	View Details
June	31°C / 26°C	38°C / 32°C	27days (274 mm) Wet	10.3h Excellent	86% Very Muggy	8.1 Very High	Wet	View Details
July	30°C / 25°C	36°C / 31°C	30days (384 mm) Wet	8.8h Good	88% Very Muggy	7.4 Very High	Wet	View Details
August	30°C / 25°C	36°C / 31°C	29days (333 mm) Wet	9.2h Good	88% Very Muggy	7.9 Very High	Wet	View Details
September	30°C / 25°C	36°C / 31°C	26days (313 mm) Wet	8.5h Good	88% Very Muggy	7.4 Very High	Wet	View Details
October	30°C / 25°C	36°C / 30°C	22days (245 mm) Wet	8.8h Good	87% Very Muggy	7.1 Very High	Wet	View Details
November	29°C / 25°C	34°C / 30°C	14days (136 mm) Wet	9.3h Good	85% Humid	6.6 High	Fair	View Details
December	29°C / 24°C	32°C / 28°C	14days (194 mm) Wet	8.5h Good	85% Humid	5.8 High	Wet	View Details

What to Wear

Light, breathable fabrics like cotton and linen are essential. Opt for loose-fitting clothing in light colors to stay cool.

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

Packing List

UmbrellaWaterproof jacketWaterproof shoesBreathable clothingSunscreen (SPF 30+)Sun hatSunglasses

Frequently Asked Questions

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Is May a good time to visit Calamba?

May is typically poor for visiting Calamba, with average highs of 33°C (91°F) and around 17 rainy days. Calamba, Philippines in May has hot conditions, with highs reaching 32.8°C (91°F) and afternoons the warmest part of the

Does it rain a lot in Calamba in May?

Calamba typically sees around 17 rainy days in May with 171 mm (6.7 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Calamba in May?

Nights stay pleasantly warm in Calamba during May, around 26°C (79°F). Light evening wear is sufficient.

What should I pack for Calamba in May?

With highs of 33°C (91°F) and lows of 26°C (79°F) in May, we recommend: Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). Comfortable walking shoes are essential.

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

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

What is the UV index in Calamba in May?

The average UV index in Calamba 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 Calamba in May?

Calamba gets approximately 13 hours of daylight per day in May, with around 11 hours of sunshine.

Does it snow in Calamba in May?

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

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