★ January29° · ☂ 13 ★ February29° · ☂ 11 ★ March30° · ☂ 12 April 31° · ☂ 12 May 31° · ☂ 14 June 31° · ☂ 16 July 31° · ☂ 21 August 31° · ☂ 20 September 31° · ☂ 21 October 30° · ☂ 23 November 30° · ☂ 16 December 30° · ☂ 15 Saipan in May:very hot, frequent rain Saipan, Northern Mariana Islands · Records from 2006 to 2025. Not a forecast.
Mean high 31° Hottest day 32.6° (2012)
Mean low 26° Coldest night 23.5° (2006)
Rain days 14 days 4-21 by year
Rainfall 89mm Daylight 12.7 → 13.0 h
Saipan's 12 months i Best: January to March
1 2 3 4 5 6 7 8 9 10 11 12
Trip types Beach Finewarm sea and frequent rain Sightseeing on foot Poorhot, frequent rain and muggy
Humidity 81% 31 muggy days
Clear days 11 days 6 overcast days
Mean wind 22 km/h 3 windy days
Sea temperature 29° 28.7-29.3° by year (last 6)
Sunrise / sunset (15th) 05:48 / 18:38 Daylight 12.7 → 13.0 h
Saipan in May The last month of the drier season. Japanese visitors crowd the island around Golden Week and popular hotels fill early. Winds turn easterly and rainy days become noticeably more frequent. Prices are relatively steady just before the wet season.
May brought serious heat to Saipan, 31°C on a typical afternoon and 26°C overnight. Early mornings were the best time to be outside. About 14 days a month saw rain, enough that a wet-weather plan was worth having. It varied a lot from year to year. May 2010 had 4 rain days; 2011 had 21.
Highs topped 30°C on 31 days of the month on average. Mixing in indoor stops at midday made sense.
Typhoons i 3 of the last 20 years had a tropical storm pass within 300 km this month.
Dolphin (2015), 169 km away typhoon strength Mawar (2023), 183 km away typhoon strength Sanvu (2012), 274 km away tropical storm 1 2 1 3 2 4 3 5 6 3 7 4 8 4 9 7 10 2 11 12
Date by date i Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
May 1 Saturday 1 rain in 7 of 20 yrs 7/20 31° 25° May 1 rain on 35% of days 31° 25°
May 2 Sunday 2 rain in 8 of 20 yrs 8/20 31° 26° May 3 Monday 3 rain in 6 of 20 yrs 6/20 31° 25° May 4 Tuesday 4 rain in 5 of 20 yrs 5/20 31° 26° May 5 Wednesday 5 rain in 9 of 20 yrs 9/20 31° 25° May 6 Thursday 6 rain in 8 of 20 yrs 8/20 31° 26° May 7 Friday 7 rain in 10 of 20 yrs 10/20 31° 26° May 8 Saturday 8 rain in 9 of 20 yrs 9/20 31° 26° 2-8 rain on 39% of days 31° 26°
May 9 Sunday 9 rain in 6 of 20 yrs 6/20 31° 26° May 10 Monday 10 rain in 9 of 20 yrs 9/20 31° 26° May 11 Tuesday 11 rain in 12 of 20 yrs 12/20 31° 25° May 12 Wednesday 12 rain in 11 of 20 yrs 11/20 31° 25° May 13 Thursday 13 rain in 6 of 20 yrs 6/20 31° 26° May 14 Friday 14 rain in 7 of 20 yrs 7/20 31° 26° May 15 Saturday 15 rain in 9 of 20 yrs 9/20 31° 26° 9-15 rain on 43% of days 31° 26°
May 16 Sunday 16 rain in 10 of 20 yrs 10/20 31° 26° May 17 Monday 17 rain in 5 of 20 yrs 5/20 31° 26° May 18 Tuesday 18 rain in 6 of 20 yrs 6/20 31° 26° May 19 Wednesday 19 rain in 7 of 20 yrs 7/20 31° 26° May 20 Thursday 20 rain in 10 of 20 yrs 10/20 31° 26° May 21 Friday 21 rain in 9 of 20 yrs 9/20 31° 26° May 22 Saturday 22 rain in 9 of 20 yrs 9/20 31° 26° 16-22 rain on 40% of days 31° 26°
May 23 Sunday 23 rain in 9 of 20 yrs 9/20 31° 26° May 24 Monday 24 rain in 11 of 20 yrs 11/20 31° 26° May 25 Tuesday 25 rain in 10 of 20 yrs 10/20 31° 26° May 26 Wednesday 26 rain in 11 of 20 yrs 11/20 32° 26° May 27 Thursday 27 rain in 12 of 20 yrs 12/20 31° 26° May 28 Friday 28 rain in 9 of 20 yrs 9/20 32° 26° May 29 Saturday 29 rain in 6 of 20 yrs 6/20 32° 26° 23-29 rain on 49% of days 31° 26°
May 30 Sunday 30 rain in 14 of 20 yrs 14/20 32° 26° May 31 Monday 31 rain in 12 of 20 yrs 12/20 31° 26°
30-31 rain on 65% of days 32° 26°
May 1 rain on 35% of days 31° 25° 2-8 rain on 39% of days 31° 26° 9-15 rain on 43% of days 31° 26° 16-22 rain on 40% of days 31° 26° 23-29 rain on 49% of days 31° 26° 30-31 rain on 65% of days 32° 26°
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
May 1 Monday 1 rain in 7 of 20 yrs 7/20 31° 25° May 2 Tuesday 2 rain in 8 of 20 yrs 8/20 31° 26° May 3 Wednesday 3 rain in 6 of 20 yrs 6/20 31° 25° May 4 Thursday 4 rain in 5 of 20 yrs 5/20 31° 26° May 5 Friday 5 rain in 9 of 20 yrs 9/20 31° 25° May 6 Saturday 6 rain in 8 of 20 yrs 8/20 31° 26° 1-6 rain on 36% of days 31° 26°
May 7 Sunday 7 rain in 10 of 20 yrs 10/20 31° 26° May 8 Monday 8 rain in 9 of 20 yrs 9/20 31° 26° May 9 Tuesday 9 rain in 6 of 20 yrs 6/20 31° 26° May 10 Wednesday 10 rain in 9 of 20 yrs 9/20 31° 26° May 11 Thursday 11 rain in 12 of 20 yrs 12/20 31° 25° May 12 Friday 12 rain in 11 of 20 yrs 11/20 31° 25° May 13 Saturday 13 rain in 6 of 20 yrs 6/20 31° 26° 7-13 rain on 45% of days 31° 26°
May 14 Sunday 14 rain in 7 of 20 yrs 7/20 31° 26° May 15 Monday 15 rain in 9 of 20 yrs 9/20 31° 26° May 16 Tuesday 16 rain in 10 of 20 yrs 10/20 31° 26° May 17 Wednesday 17 rain in 5 of 20 yrs 5/20 31° 26° May 18 Thursday 18 rain in 6 of 20 yrs 6/20 31° 26° May 19 Friday 19 rain in 7 of 20 yrs 7/20 31° 26° May 20 Saturday 20 rain in 10 of 20 yrs 10/20 31° 26° 14-20 rain on 39% of days 31° 26°
May 21 Sunday 21 rain in 9 of 20 yrs 9/20 31° 26° May 22 Monday 22 rain in 9 of 20 yrs 9/20 31° 26° May 23 Tuesday 23 rain in 9 of 20 yrs 9/20 31° 26° May 24 Wednesday 24 rain in 11 of 20 yrs 11/20 31° 26° May 25 Thursday 25 rain in 10 of 20 yrs 10/20 31° 26° May 26 Friday 26 rain in 11 of 20 yrs 11/20 32° 26° May 27 Saturday 27 rain in 12 of 20 yrs 12/20 31° 26° 21-27 rain on 51% of days 31° 26°
May 28 Sunday 28 rain in 9 of 20 yrs 9/20 32° 26° May 29 Monday 29 rain in 6 of 20 yrs 6/20 32° 26° May 30 Tuesday 30 rain in 14 of 20 yrs 14/20 32° 26° May 31 Wednesday 31 rain in 12 of 20 yrs 12/20 31° 26°
28-31 rain on 51% of days 32° 26°
1-6 rain on 36% of days 31° 26° 7-13 rain on 45% of days 31° 26° 14-20 rain on 39% of days 31° 26° 21-27 rain on 51% of days 31° 26° 28-31 rain on 51% of days 32° 26°
Tap another date to change
2006 2mm
2007 none
2008 4mm
2009 4mm
2010 none
2011 3mm
2012 1mm
2013 3mm
2014 none
2015 12mm
2016 none
2017 2mm
2018 1mm
2019 5mm
2020 3mm
2021 2mm
2022 none
2023 5mm
2024 none
2025 8mm
Holidays in May (2027) 1 Local public holiday or break (busier, pricier)
Your trip dates, the past 20 years Trip dates May 1 (Sat) 2 (Sun) 3 (Mon) 4 (Tue) 5 (Wed) 6 (Thu) 7 (Fri) 8 (Sat) 9 (Sun) 10 (Mon) 11 (Tue) 12 (Wed) 13 (Thu) 14 (Fri) 15 (Sat) 16 (Sun) 17 (Mon) 18 (Tue) 19 (Wed) 20 (Thu) 21 (Fri) 22 (Sat) 23 (Sun) 24 (Mon) 25 (Tue) 26 (Wed) 27 (Thu) 28 (Fri) 29 (Sat) 30 (Sun) 31 (Mon) ~ May 1 (Sat) 2 (Sun) 3 (Mon) 4 (Tue) 5 (Wed) 6 (Thu) 7 (Fri) 8 (Sat) 9 (Sun) 10 (Mon) 11 (Tue) 12 (Wed) 13 (Thu) 14 (Fri) 15 (Sat) 16 (Sun) 17 (Mon) 18 (Tue) 19 (Wed) 20 (Thu) 21 (Fri) 22 (Sat) 23 (Sun) 24 (Mon) 25 (Tue) 26 (Wed) 27 (Thu) 28 (Fri) 29 (Sat) 30 (Sun) 31 (Mon) 1-7 8-14 15-21 22-end Whole month
You can also click two dates on the axis. Hover a cell to see that day's rain. By year Driest trips first
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Trip rain days Month rain days Tap a date to start, tap another to end. Each cell is that date in one year. '06 '07 '08 '09 '10 '11 '12 '13 '14 '15 '16 '17 '18 '19 '20 '21 '22 '23 '24 '25
of 20 Dates outside your trip are dimmed.
One row per year, one cell per day. 2010 had 4 rain days, 2011 had 21.
Saipan through the year Month High Low Rain days Rainfall Sea January Good 29° 24° 13 days 110mm 28° February Good 29° 24° 11 days 62mm 28° March Good 30° 24° 12 days 69mm 28° April 31° 25° 12 days 77mm 29° May 31° 26° 14 days 89mm 29° June 31° 26° 16 days 106mm 30° July 31° 26° 21 days 218mm 30° August 31° 25° 20 days 342mm 30° September 31° 25° 21 days 312mm 30° October 30° 25° 23 days 326mm 30° November 30° 25° 16 days 107mm 30° December 30° 25° 15 days 77mm 29°
What to pack At 31°C by day and 26°C at night with humid air, sweat hardly dried. Quick-dry fabrics beat heavy cotton, and a spare top saved the evening.
Averaging 14 rain days, keep a light waterproof or a compact umbrella in the bag. In windy spots umbrellas flip easily.
Common questions Does it rain a lot in Saipan in May? Over the past 20 years May averaged 14 rain days (1 mm or more) out of 31. Individual years ran from 4 in the driest to 21 in the wettest.
What should I wear in Saipan in May? Days averaged 31°C and nights 26°C. Pack an umbrella, sandals that can get wet, T-shirts, sunscreen plus a hat, a swimsuit, and insect repellent.
Can you swim in Saipan in May? Sea surface temperature averaged 29°C in May, warm enough to stay in for a long swim. Year to year it ranged 28.7-29.3°C. Check local flags for waves and jellyfish on the day.
Is May a good time to visit Saipan? On warmth and rain days alone, Saipan's easiest months were January to March. May ranked 6 of 12.
Is Saipan humid in May? Mean relative humidity was 81%, with about 31 muggy days (dew point of 20°C or more) in the month.
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