Río Blanco weather in May

In May, Río Blanco sees average daytime highs of 31°C and overnight lows near 22°C, with 159 mm of rain across 22.4 wet days and about 12.6 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 10% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 30 min at the start of May to 12 h 42 min by month's end. Set against the rest of the year, May is Río Blanco's 7th-clearest and 8th-windiest month. For the whole year in context, see Río Blanco's year-round climate.

Daytime high
31°
2nd warmest
Overnight low
22°
12th coldest
Rainfall
159 mm
22.4 wet days
Daylight
12 h 36 min
5:19 AM – 5:55 PM
Cloud cover
74%
7th clearest
Wind
7 km/h
8th windiest
Solar energy
5.17 kWh/m²
Travel score
3.1
out of 10

Río Blanco is urban settlement and municipal seat in Matagalpa Department, Nicaragua.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical May day in Río Blanco reaches about 31°C in the afternoon and slips back to 22°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, May runs on par with April and about 2°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13222
23222
33222
43222
53223
63223
73223
83223
93223
103223
113123
123123
133123
143123
153123
163123
173123
183123
193123
203122
213122
223122
233122
243122
253122
263022
273022
283022
293022
303022
313022

How May really feels in Río Blanco

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.

Río Blanco weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 20°4015.211.35.9
Feb28° / 20°2911.611.65.9
Mar30° / 21°259.411.95.4
Apr31° / 22°4110.712.34.3
May31° / 22°15922.412.63.1
Jun29° / 22°2122812.72.9
Jul28° / 22°17629.312.73.2
Aug29° / 22°16228.112.43.2
Sep30° / 22°17826.812.13.0
Oct29° / 22°19225.911.73.4
Nov28° / 21°10219.311.44.7
Dec27° / 20°5016.511.35.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 71%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24852
34654
44555
54456
64357
74357
84159
94060
103862
113664
123565
133268
143070
152872
162674
172575
182377
192278
202080
212080
221981
231882
241684
251684
261585
271585
281585
291585
301585
311585

Chance of precipitation in May

Any precipitation

Río Blanco gets around 159 mm of rain over 22.4 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 72% and peaks near 89% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
152
254
355
457
558
659
760
861
962
1063
1165
1266
1368
1469
1571
1673
1775
1876
1978
2079
2180
2282
2383
2484
2585
2686
2786
2887
2988
3088
3189

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 67% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11749431
21648441
31647451
41646471
51545481
61544491
71543501
81541521
91540531
101538551
111536571
121434601
131432612
141430632
151428652
161325692
171323703
180321733
190219763
200218773
210216793
220215803
230114823
240113833
250112843
260111853
270110863
280010873
29009883
30008893
31008893

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 30 min at the start of May to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over May. Sunrise moves from 5:24 AM to 5:17 AM, and sunset from 5:52 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:245:52
212.55:245:52
312.55:245:52
412.55:235:52
512.55:235:52
612.55:225:53
712.55:225:53
812.55:225:53
912.55:215:53
1012.55:215:54
1112.65:215:54
1212.65:205:54
1312.65:205:54
1412.65:205:54
1512.65:205:55
1612.65:195:55
1712.65:195:55
1812.65:195:56
1912.65:195:56
2012.65:185:56
2112.65:185:56
2212.65:185:57
2312.65:185:57
2412.75:185:57
2512.75:185:57
2612.75:185:58
2712.75:185:58
2812.75:175:58
2912.75:175:59
3012.75:175:59
3112.75:175:59

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.17 kWh/m².

For context, solar energy here swings from a low near 3.96 kWh/m² to a high of 5.78 kWh/m² in April across the year — May's 5.17 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.5Bright
85.5Bright
95.5Bright
105.4Bright
115.4Bright
125.3Bright
135.3Bright
145.3Bright
155.2Bright
165.2Bright
175.1Bright
185.1Bright
195.0Bright
205.0Bright
215.0Bright
224.9Bright
234.9Bright
244.9Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.7Bright
Planning a trip in May

Hazard calendar for Río Blanco

In seasonPeak

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

Río Blanco's rainy season runs May–November, 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 Río Blanco?

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

3.1
Sightseeing
10th-best month of the year
4.7
Beach & pool
7th-best month of the year

May is a weaker month for outdoor sightseeing in Río Blanco.

What to pack for Río Blanco in May

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

In May, Río Blanco sees daytime highs around 31°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Río Blanco in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Río Blanco peaks around April 9 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 9UV 13Dec 14UV 9
UV index (midday)Level
Jan10Extreme
Feb13Extreme
Mar13Extreme
Apr14Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Río Blanco 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 Río Blanco is worst in July — around 25 µg/m³ PM2.5 (moderate), about 4.6× the cleanest month (December, 5 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1624 µg/m³Dec 215 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar8Good
Apr17Moderate
May21Moderate
Jun19Moderate
Jul25Moderate
Aug18Moderate
Sep13Moderate
Oct10Good
Nov6Good
Dec5Good
Location & terrain

Where is Río Blanco?

Río Blanco sits at 12.9°N, 85.2°W, 265 m above sea level, in Nicaragua. The nearest listed city is Camoapa, 69 km away.

CamoapaBoacoMatagalpaJinotegaJuigalpaSiunaEstelíTipitapa

Topography around Río Blanco

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

Within 3 km, the terrain around Río Blanco has large variations in elevation — a maximum elevation change of 765 m around an average of 368 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,311 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,708 m.

The land around Río Blanco is covered by trees (57%) and grassland (40%) within 3 km, trees (70%) and grassland (30%) within 16 km, and trees (66%) and grassland (34%) within 80 km.

3 km
765 m
16 km
1,311 m
80 km
1,708 m
treesgrasslandartificial surfaces
May weather nearby: Camoapa 69 km · Boaco 70 km · Matagalpa 75 km · Jinotega 86 km · Juigalpa 93 km · Siuna 101 km · Estelí 124 km · Tipitapa 125 km

Nicaragua travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$3,173
2025
Happiness
6.3 / 10
World Happiness, 2025
Homicide rate
11.3
per 100k, 2021
Road deaths
16.9
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Moderate
EF EPI 512
Religion
Roman Catholic 45%Protestant 39%none 14%other 1%

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 Río Blanco (12.9344°, -85.2235°, elevation 265 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. 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).