Blauwgrond weather in May

In May, Blauwgrond sees average daytime highs of 30°C and overnight lows near 24°C, with 277 mm of rain across 27 wet days and about 12.3 hours of daylight. It is the 8th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 5% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of May to 12 h 18 min by month's end. Set against the rest of the year, May is Blauwgrond's 12th-clearest and 7th-windiest month. For the whole year in context, see Blauwgrond's year-round climate.

Daytime high
30°
8th warmest
Overnight low
24°
12th coldest
Rainfall
277 mm
27 wet days
Daylight
12 h 18 min
6:29 AM – 6:45 PM
Cloud cover
80%
12th clearest
Wind
10 km/h
7th windiest
Solar energy
4.85 kWh/m²
Travel score
3.0
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical May day in Blauwgrond reaches about 30°C in the afternoon and slips back to 24°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, May runs on par with April and on par with June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63024
73024
83024
93024
103024
113024
123024
133024
143024
153024
163024
173024
183024
193024
203024
213024
223024
233024
243024
253024
263024
273024
283024
293024
303024
313024

How May really feels in Blauwgrond

Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Blauwgrond weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 23°12219.411.74.1
Feb29° / 23°9116.111.84.3
Mar30° / 23°8616.7124.2
Apr30° / 24°15820.512.13.6
May30° / 24°2772712.33.0
Jun30° / 23°31228.312.32.7
Jul31° / 23°24526.512.33.0
Aug31° / 23°1482012.23.4
Sep32° / 24°7813.7123.7
Oct32° / 24°8414.211.93.6
Nov31° / 24°13520.411.73.3
Dec30° / 23°15623.811.73.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 81%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12674
22575
32575
42575
52476
62476
72575
82476
92476
102476
112377
122377
132179
142179
152080
161981
171981
181882
191882
201783
211585
221585
231585
241585
251585
261585
271585
281486
291585
301585
311585

Chance of precipitation in May

Any precipitation

Blauwgrond gets around 277 mm of rain over 27 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 87% and peaks near 93% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
176
277
377
478
579
680
780
881
982
1083
1184
1285
1386
1487
1587
1688
1789
1889
1990
2091
2191
2292
2392
2492
2593
2693
2793
2893
2993
3093
3193

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the oppressive band about 60% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
17030
26931
36832
46733
56634
66535
76436
86436
96337
106238
116139
126040
136040
145941
155842
165842
175743
185743
195644
205644
215644
225545
235545
245545
255545
265644
275644
285644
295743
305743
315842

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 12 min at the start of May to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over May. Sunrise moves from 6:32 AM to 6:29 AM, and sunset from 6:44 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:326:44
212.26:316:44
312.26:316:44
412.26:316:44
512.26:316:44
612.26:306:44
712.26:306:44
812.26:306:44
912.26:306:44
1012.26:306:44
1112.26:296:44
1212.26:296:44
1312.36:296:44
1412.36:296:44
1512.36:296:45
1612.36:296:45
1712.36:296:45
1812.36:296:45
1912.36:296:45
2012.36:286:45
2112.36:286:45
2212.36:286:46
2312.36:286:46
2412.36:286:46
2512.36:286:46
2612.36:286:46
2712.36:286:46
2812.36:286:47
2912.36:286:47
3012.36:286:47
3112.36:296:47

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.85 kWh/m².

For context, solar energy here swings from a low near 4.74 kWh/m² to a high of 6.42 kWh/m² in September across the year — May's 4.85 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
124.9Bright
134.9Bright
144.9Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in May

Hazard calendar for Blauwgrond

In seasonPeak

In May, Blauwgrond sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Blauwgrond's rainy season runs April–August, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Blauwgrond?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.0
Sightseeing
10th-best month of the year
4.1
Beach & pool
11th-best month of the year

May is a weaker month for outdoor sightseeing in Blauwgrond.

What to pack for Blauwgrond in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Blauwgrond sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

Sea temperature near Blauwgrond in May

The nearest coast averages about 27°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 31 km away) is warmest in August at about 28°C and coldest in February near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar27Warm
Apr27Warm
May27Warm
Jun27Warm
Jul28Warm
Aug28Tropical
Sep28Tropical
Oct28Tropical
Nov28Warm
Dec27Warm

UV index in Blauwgrond in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Blauwgrond peaks around March 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 10 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 20UV 15Dec 11UV 10
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec10Extreme

Air quality in Blauwgrond in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Blauwgrond is worst in April — around 25 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (August, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 1125 µg/m³Aug 198 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb25Moderate
Mar24Moderate
Apr25Moderate
May22Moderate
Jun15Moderate
Jul9Good
Aug8Good
Sep9Good
Oct10Good
Nov12Moderate
Dec19Moderate
Location & terrain

Where is Blauwgrond?

Blauwgrond sits at 5.8°N, 55.1°W, 4 m above sea level, in Suriname. The nearest listed city is Rainville, 2.0 km away.

Topography around Blauwgrond

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Blauwgrond.

Within 3 km, the terrain around Blauwgrond has only modest variations in elevation — a maximum elevation change of 13 m around an average of 1 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 32 m; within 80 km, significant variations in elevation — a maximum elevation change of 290 m.

The land around Blauwgrond is covered by water (40%), artificial surfaces (30%) and grassland (24%) within 3 km, trees (33%) and grassland (25%) within 16 km, and trees (59%) and water (29%) within 80 km.

3 km
13 m
16 km
32 m
80 km
290 m
treesgrasslandartificial surfaceswaterwetlandmangroves
May weather nearby: Rainville 2.0 km · Paramaribo 6.0 km · Munder Buiten 7.0 km · Beekhuizen 7.0 km · Tammenga 9.0 km · Flora 10 km · Welgelegen 11 km · Weg naar Zee 11 km

Suriname travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
127 / 220 V · 60 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$7,070
2025
Happiness
6.3 / 10
World Happiness, 2015
Safe drinking water
56%
of population, 2024
Homicide rate
6.5
per 100k, 2023
Road deaths
15.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Protestant 24%Hindu 22%Roman Catholic 22%Muslim 14%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Blauwgrond (5.8434°, -55.1193°, elevation 4 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).