Fresno weather in May

In May, Fresno sees average daytime highs of 27°C and overnight lows near 17°C, with 85 mm of rain across 9.7 wet days and about 12.2 hours of daylight. It is the 10th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 0% of the time in May, and the air most often feels humid.

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 Fresno's 12th-clearest and 8th-windiest month. For the whole year in context, see Fresno's year-round climate.

Daytime high
27°
10th warmest
Overnight low
17°
12th coldest
Rainfall
85 mm
9.7 wet days
Daylight
12 h 12 min
5:49 AM – 6:03 PM
Cloud cover
90%
12th clearest
Wind
4 km/h
8th windiest
Solar energy
4.77 kWh/m²
Travel score
6.0
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical May day in Fresno reaches about 27°C in the afternoon and slips back to 17°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 29°C. Set against its neighbours, May runs on par with April and on par with June.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12718
22718
32718
42718
52718
62718
72718
82718
92718
102718
112718
122718
132718
142718
152718
162718
172717
182717
192717
202717
212717
222717
232717
242717
252717
262717
272717
282717
292717
302717
312717

Fresno weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 16°738.411.76.6
Feb27° / 17°618.511.86.3
Mar27° / 17°11112.4125.8
Apr27° / 17°11511.812.15.6
May27° / 17°859.712.26.0
Jun27° / 17°82.312.36.9
Jul28° / 17°61.712.36.9
Aug29° / 17°71.812.26.3
Sep29° / 17°315.7125.8
Oct27° / 17°1881411.95.4
Nov26° / 17°24017.511.85.1
Dec26° / 17°13412.511.75.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 3% of May, with mostly cloudy or overcast conditions the remaining 96%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1397
2397
3397
4397
5397
6397
7397
8298
9298
10298
11298
12298
13298
14298
15397
16397
17397
18397
19397
20397
21496
22496
23496
24496
25496
26496
27496
28595
29595
30595
31595

Chance of precipitation in May

Any precipitation

Fresno gets around 85 mm of rain over 9.7 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 30% and peaks near 39% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
238
338
438
537
636
736
835
934
1033
1132
1232
1331
1430
1529
1629
1728
1828
1928
2028
2128
2227
2327
2426
2526
2625
2724
2822
2921
3020
3119

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid band about 50% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1439525
2438535
3437545
4436546
5435556
6434566
7434566
8434557
9334567
10334567
11334567
12335557
13336547
14337537
15338536
16339526
17441506
18442496
19443485
20543475
21544465
22545465
23545454
24545454
25646454
26646444
27646443
28746443
29746443
30747433
31747433

Wind in May

Winds average 4 km/h in May.

Across May, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

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 5:52 AM to 5:49 AM, and sunset from 6:03 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:526:03
212.25:526:03
312.25:526:03
412.25:516:03
512.25:516:03
612.25:516:03
712.25:516:03
812.25:506:03
912.25:506:03
1012.25:506:03
1112.25:506:03
1212.25:506:03
1312.25:506:03
1412.25:506:03
1512.25:496:03
1612.25:496:03
1712.25:496:04
1812.25:496:04
1912.25:496:04
2012.25:496:04
2112.25:496:04
2212.35:496:04
2312.35:496:04
2412.35:496:04
2512.35:496:05
2612.35:496:05
2712.35:496:05
2812.35:496:05
2912.35:496:05
3012.35:496:06
3112.35:496:06

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.77 kWh/m².

For context, solar energy here swings from a low near 4.53 kWh/m² to a high of 5.91 kWh/m² in August across the year — May's 4.77 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
315.0Bright
Planning a trip in May

Hazard calendar for Fresno

In seasonPeak

None of Fresno's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Fresno's rainy season runs October–December, 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 Fresno?

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

6.0
Sightseeing
6th-best month of the year
6.1
Beach & pool
7th-best month of the year

May is a reasonable time to visit Fresno for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Fresno in May

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

In May, Fresno sees daytime highs around 27°C and nights near 17°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Fresno in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Fresno peaks around February 21 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 12 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 21UV 16Jun 17UV 12
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar16Extreme
Apr13Extreme
May14Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep15Extreme
Oct14Extreme
Nov13Extreme
Dec12Extreme

Air quality in Fresno 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 Fresno is worst in March — around 31 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1730 µg/m³Jul 1320 µg/m³
PM2.5 (µg/m³)Level
Jan22Moderate
Feb26Moderate
Mar31Moderate
Apr27Moderate
May23Moderate
Jun21Moderate
Jul20Moderate
Aug23Moderate
Sep24Moderate
Oct21Moderate
Nov20Moderate
Dec21Moderate
Location & terrain

Where is Fresno?

Fresno sits at 5.2°N, 75.0°W, 1,467 m above sea level, in Colombia. The nearest listed city is Padua, 12 km away.

Topography around Fresno

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

Within 3 km, the terrain around Fresno has large variations in elevation — a maximum elevation change of 1,017 m around an average of 1,388 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,399 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,113 m.

The land around Fresno is covered by trees (76%) and grassland (21%) within 3 km, trees (80%) within 16 km, and trees (68%) and grassland (30%) within 80 km.

3 km
1,017 m
16 km
2,399 m
80 km
5,113 m
treesgrasslandcroplandartificial surfaces
May weather nearby: Padua 12 km · San Sebastián de Mariquita 17 km · Manzanares 17 km · Líbano 26 km · Honda 34 km · Lérida 35 km · Guaduas 50 km · La Dorada 53 km

Colombia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 / 240 V · 60 Hz
Prices
≈ 38% of US
price level, 2025
GDP per capita
$8,562
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
74%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
15.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 480
Religion
Roman Catholic 64%Protestant 17%none 14%atheist 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 Fresno (5.1526°, -75.0362°, elevation 1,467 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).