Cacheu, Guinea-Bissau — Weather in May 2027

Climate Overview

Cacheu, Guinea-Bissau in May has hot conditions, with highs reaching 35.8°C (96°F) and afternoons the warmest part of the day. Rain is rare, falling on about 0 days this month. Temperatures drop noticeably between day and night. Sea temperature reaches 28.5°C (83°F).

This month falls at the end of Spring. Temperatures are at their seasonal peak.

Temperatures remain fairly steady throughout May, with daily highs around 36°C (97°F).

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

The warmest days tend to fall around the 6th, averaging 36.7°C (98°F).

Temperatures begin dropping heading into June.

Monthly May Averages

Temperature

36°C / 23°C

Feels Like

38°C / 26°C

Rain

0 days · 2 mm

Sunshine

11.7h / day

Humidity

59% — Moderate

Wind

17 km/h

Wind Direction

W (274°)

Gusts

38 km/h

Daylight

12.7 h

Cloud Cover

39%

Clear Sky Days

9.6

UV Index

8.7 — Very High

Sea Temperature

29°C

Dew Point

21°C — Muggy

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 06:42

Daylight 12.7h

Sunset 19:23

What to Expect

With midday temperatures reaching 36°C (96°F), schedule outdoor activities for early morning or late afternoon. Evenings remain warm enough for comfortable outdoor dining and night markets.

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

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Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January best	35°C / 20°C	33°C / 18°C	0days (0 mm) Excellent	10.3h Excellent	38% Comfortable	7.2 Very High	Excellent	View Details
February best	36°C / 21°C	35°C / 19°C	0days (0 mm) Excellent	10.7h Excellent	37% Comfortable	8.2 Very High	Excellent	View Details
March	37°C / 22°C	37°C / 22°C	0days (0 mm) Excellent	11.1h Excellent	45% Moderate	9 Very High	Good	View Details
April	37°C / 23°C	39°C / 24°C	0days (0 mm) Excellent	11.6h Excellent	51% Moderate	9.1 Very High	Fair	View Details
May	36°C / 23°C	38°C / 26°C	0days (2 mm) Excellent	11.7h Excellent	59% Moderate	8.7 Very High	Fair	View Details
June	33°C / 25°C	37°C / 29°C	7days (52 mm) Good	10.9h Excellent	71% Muggy	8.1 Very High	Poor	View Details
July	30°C / 25°C	35°C / 29°C	25days (352 mm) Wet	8.1h Good	84% Humid	7.2 Very High	Wet	View Details
August	29°C / 24°C	34°C / 29°C	26days (459 mm) Wet	7.5h Good	87% Very Muggy	7.3 Very High	Wet	View Details
September	30°C / 24°C	36°C / 29°C	26days (338 mm) Wet	8.1h Good	86% Very Muggy	7.3 Very High	Wet	View Details
October	32°C / 25°C	38°C / 30°C	18days (132 mm) Wet	9.8h Good	83% Humid	7.6 Very High	Wet	View Details
November	34°C / 23°C	37°C / 27°C	3days (13 mm) Excellent	10.2h Excellent	68% Muggy	7.2 Very High	Good	View Details
December best	34°C / 21°C	33°C / 20°C	0days (1 mm) Excellent	10h Excellent	45% Moderate	6.7 High	Excellent	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.

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

Packing List

Breathable clothingSunscreen (SPF 30+)Sun hatSunglassesSandals

Frequently Asked Questions

Expand all

Is May a good time to visit Cacheu?

May is typically fair for visiting Cacheu, with average highs of 36°C (96°F) and around 0 rainy days. Cacheu, Guinea-Bissau in May has hot conditions, with highs reaching 35.8°C (96°F) and afternoons the warmest part of th

Does it rain a lot in Cacheu in May?

Cacheu typically sees around 0 rainy days in May with 2 mm (0.1 in) of total rainfall. An umbrella should suffice.

Does it get cold at night in Cacheu in May?

Nights stay pleasantly warm in Cacheu during May, around 23°C (74°F). Light evening wear is sufficient.

What should I pack for Cacheu in May?

With highs of 36°C (96°F) and lows of 23°C (74°F) in May, we recommend: Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Sandals. Comfortable walking shoes are essential.

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

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

What is the UV index in Cacheu in May?

The average UV index in Cacheu during May is 9 (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 Cacheu in May?

Cacheu gets approximately 13 hours of daylight per day in May, with around 12 hours of sunshine.

Does it snow in Cacheu in May?

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

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