30YearWeather
St. John's in May
St. John's weather in May - Antigua and Barbuda
☀️Hot & Sunny

St. John's Weather in May

Plan your May trip to St. John's, Antigua and Barbuda. Based on 30 years of NASA data, expect temperatures of 29°C (high) to 25°C (low), with 24% rain probability and 8 hours of daily sunshine. The Caribbean Sea averages 29°C in May. Pack rain gear for around 11 rainy days.

Avg High
29°C

Hottest around day 31

Avg Low
25°C

Coolest around day 1

Rainy Days
11days

24% avg rain chance

Sunshine
8hrs/day

Spring season

Sea Temperature in May

Caribbean Sea

28.7°C

Monthly Average

Water Feel
🌴Tropical

Perfect for swimming and water sports

Swim Rating
Excellent for swimming

Based on average sea surface temperature

Body of Water
Caribbean Sea

St. John's coastline

St. John's May Weather Calendar

Click any day to see detailed weather information

Currency

XCD

$ Eastern Caribbean dollar

Language

English

Driving

Left side

Travel Intelligence

Exclusive flight analytics & health data for St. John's

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Remote
9/ 100
Traffic Index

Off the beaten path

Peak Daily Arrivals

0

slots per day

Peak

Jul

Low

Sep

Monthly Traffic Distribution

21
Jan
18
Feb
19
Mar
14
Apr
16
May
19
Jun
23
Jul
17
Aug
13
Sep
14
Oct
21
Nov
17
Dec
Traffic Level
Low Season

Key Connections

Road Town Terrance B. Lettsome (EIS)
Saint Martin Princess Juliana (SXM)
New York John F Kennedy (JFK)
Miami (MIA)
Bridgetown Sir Grantley Adams (BGI)

Health & Safety Advisory

CDC travel health recommendations

7 Recommendations
COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Hepatitis A

Recommended for unvaccinated travelers one year old or older going to Antigua and Barbuda.Infants 6 to 11 months old should also be vaccinated against Hepatitis A. The dose does not count toward the routine 2-dose series.Travelers allergic to a vaccine component should receive a single dose of immune globulin, which provides effective protection for up to 2 months depending on dosage given.Unvaccinated travelers who are over 40 years old, are immunocompromised, or have chronic medical conditions planning to depart to a risk area in less than 2 weeks should get the initial dose of vaccine and at the same appointment receive immune globulin.

Hepatitis B

Recommended for unvaccinated travelers of all ages traveling to Antigua and Barbuda.

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

Rabies

Dogs infected with rabies are not commonly found in Antigua and Barbuda.If rabies exposures occur while in Antigua and Barbuda, rabies vaccines may only be available in larger suburban/urban medical facilities.Rabies pre-exposure vaccination considerations include whether travelers 1) will be performing occupational or recreational activities that increase risk for exposure to potentially rabid animals and 2) might have difficulty getting prompt access to safe post-exposure prophylaxis.Please consult with a healthcare provider to determine whether you should receive pre-exposure vaccination before travel.For more information, seecountry rabies status assessments.

Typhoid

Recommended for most travelers, especially those staying with friends or relatives or visiting smaller cities or rural areas.

+1 more

Source: CDC Travelers' Health

View Complete Health Guide

Is May a Good Time to Visit St. John's?

👌A reasonable choice for your trip
Short Answer

Ideal beach conditions in St. John's during May: 28.7°C turquoise waters, 29°C air, 24% rain. 0.9m calm waves suit families and swimmers alike.

Decision Factors

Oppressive heat and humidity

28.6°C with 75% humidity - challenging conditions

Vaccinations required

Yellow Fever

Warm tropical seas

28.7°C sea temperature - Tropical Bath

Seismically active region

12 earthquakes recorded in this month (30-year data)

Health precautions needed

Be aware of: Leptospirosis, African Tick-Bite Fever, Dengue

Plenty of sunshine

11.5h of sunshine daily

Good For

  • 🏖️
    Beach lovers

    28.7°C warm seas and 24% rain probability

  • 👨‍👩‍👧‍👦
    Families with children

    Comfortable 28.6°C temperatures and low 24% rain risk

  • 🥾
    Outdoor enthusiasts

    Ideal hiking conditions: 28.6°C, 24% rain chance

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💑
    Honeymoon couples

    Wedding score 89/100 with romantic weather conditions

Who Should Avoid

  • 👴
    Elderly travelers

    75% humidity creates difficult conditions

  • 🌡️
    Heat-sensitive visitors

    33°C feels-like temperature creates discomfort

930 observations30-year historical data
Confidence: 99%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,St. John's in May averages 29°C with 24% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: St. John's in May

What are the temperatures in St. John's in May?

Daytime highs average 29°C, nights drop to 25°C. Temperatures remain fairly consistent.

How many rainy days in St. John's in May?

Expect around 11 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in St. John's in May?

Light, breathable fabrics. Don't forget sunglasses and a hat.

Is May peak season in St. John's?

This is shoulder season—moderate prices and manageable crowds.