Kwajalein Weather in May
May in Kwajalein averages 29°C (84°F) during the day and 27°C (81°F) at night. May is part of the rainy season, with around 202 mm (8 in) of rainfall and frequent showers.
Rainfall in Kwajalein in May
As part of the rainy season, Kwajalein sees around 20 days of rain in May, with an average of 202 mm (8 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.
Temperature in Kwajalein in May
May in Kwajalein sees highs of 29°C (84°F) and lows of 27°C (81°F) overnight. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 27°C (81°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.
Wind Speed in Kwajalein in May
Wind speeds average 5 m/s (10 knots) during May. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.
Average water temperature in May
With water at 28°C (82°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March and April typically offer the best weather for Kwajalein.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Marshall Islands, check out our Kwajalein's climate page.
Kwajalein Temperature in May
Min Temperature
27°C (81°F)
Max Temperature
29°C (84°F)
Water Temperature
28°C (82°F)
Chance of Rain
66%
Precipitation
202 mm (8 in)
Rainy days
20 days
Humidity
83%
Windspeed
5 m/s (10 knots)
Daily Historical Temperatures
47-year average (1976-2025)
Based on our historical records, temperatures in Kwajalein typically stay consistent throughout May, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in May
Daily Historical Precipitation
47-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Kwajalein in May
Browse day-by-day weather records for Kwajalein spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kwajalein historical weather extremes in May
Based on weather observations in Kwajalein between 2006 and 2026, these are the recorded extremes during May.
- The hottest May day on record in Kwajalein reached 33°C (91°F) (May 22, 2026).
- Kwajalein experienced its chilliest May day on May 18, 2022, reaching only 27°C (81°F).
- The lowest overnight temperature recorded in May was 24°C (75°F) (May 3, 2018).
Best Places in Marshall Islands in May
Find out more about the weather in Marshall Islands and which places have the best travel conditions in this month. See all of Marshall Islands in May →
perfect weather
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tolerable
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What to Wear in Kwajalein in May
Warm weather calls for comfortable, breathable clothing in May. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. The water temperature sits at about 28°C (82°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear.What To Do in Kwajalein in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Marshall Islands, check out our Kwajalein's climate page.
Temperature Rainfall Humidity Wind Speed Water Temp
See the full Kwajalein climate overview or explore weather in Marshall Islands.
