Fillmore weather in May

In May, Fillmore sees average daytime highs of 72°F and overnight lows near 51°F, with 0.6 in of rain across 2.8 wet days and about 13.8 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 71°F in the first days to 74°F by the end. The sky is clear or mostly clear about 64% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 24 min at the start of May to 14 h 06 min by month's end. Set against the rest of the year, May is Fillmore's 6th-clearest and 8th-windiest month. For the whole year in context, see Fillmore's year-round climate.

Daytime high
72°
6th warmest
Overnight low
51°
7th coldest
Rainfall
0.6 in
2.8 wet days
Daylight
13 h 48 min
4:58 AM – 6:46 PM
Cloud cover
32%
6th clearest
Wind
3 mph
8th windiest
Solar energy
7.81 kWh/m²
Travel score
8.4
out of 10

Fillmore is city in Ventura County, California, United States.

Density
1,784/km²
people per km²
Founded
1914

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 71°F in the first days to 74°F by the end.

A typical May day in Fillmore reaches about 72°F in the afternoon and slips back to 51°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 62°F and 82°F. Set against its neighbours, May runs about 5°F warmer than April and about 6°F cooler than June.

40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
17149
27149
37149
47149
57149
67149
77150
87150
97150
107150
117250
127250
137250
147251
157251
167251
177251
187251
197251
207251
217251
227352
237352
247352
257352
267352
277453
287453
297453
307453
317553

Fillmore weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan58° / 40°3.35.81.8105.0
Feb59° / 40°3.671.910.74.9
Mar62° / 42°2.76.21.411.76.1
Apr67° / 45°1.03.70.712.87.5
May72° / 51°0.62.8013.88.4
Jun79° / 57°0.10.7014.39.0
Jul84° / 62°0.21014.17.6
Aug85° / 63°0.00.2013.37.4
Sep81° / 59°0.20.9012.28.5
Oct74° / 52°0.72.8011.18.7
Nov65° / 45°0.82.90.310.27.3
Dec58° / 40°2.251.19.75.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27525
37525
47525
57525
67525
77624
87624
97525
107525
117624
127624
137723
147723
157822
167822
177822
187921
197921
207921
218020
228020
238020
248218
258218
268218
278317
288317
298317
308416
318416

Chance of precipitation in May

Any precipitation

Fillmore gets around 0.6 in of rain over 2.8 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 9% and peaks near 11% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
111
211
311
411
511
611
711
811
911
1011
1111
1211
1311
1411
1510
1610
1710
189
199
209
218
228
237
247
256
266
275
285
295
304
314

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
18991
19991
20991
21991
22991
23991
24982
25982
26982
27982
28973
29973
30973
31973

Wind in May

Winds average 3 mph in May.

Across May, daily wind ranges from about 3 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm
313calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 24 min at the start of May to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over May. Sunrise moves from 5:12 AM to 4:50 AM, and sunset from 6:34 PM to 6:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:126:34
213.45:116:34
313.45:106:35
413.55:096:36
513.55:086:37
613.55:076:38
713.55:066:38
813.65:056:39
913.65:046:40
1013.65:036:41
1113.75:026:42
1213.75:016:42
1313.75:016:43
1413.75:006:44
1513.84:596:45
1613.84:586:46
1713.84:586:46
1813.84:576:47
1913.94:566:48
2013.94:556:49
2113.94:556:49
2213.94:546:50
2314.04:546:51
2414.04:536:52
2514.04:526:52
2614.04:526:53
2714.04:516:54
2814.14:516:54
2914.14:516:55
3014.14:506:56
3114.14:506:56

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.81 kWh/m².

For context, solar energy here swings from a low near 2.97 kWh/m² to a high of 8.34 kWh/m² in June across the year — May's 7.81 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.5Intense
27.6Intense
37.6Intense
47.6Intense
57.6Intense
67.7Intense
77.7Intense
87.7Intense
97.7Intense
107.7Intense
117.7Intense
127.8Intense
137.8Intense
147.8Intense
157.8Intense
167.8Intense
177.8Intense
187.8Intense
197.9Intense
207.9Intense
217.9Intense
227.9Intense
237.9Intense
248.0Intense
258.0Intense
268.0Intense
278.0Intense
288.0Intense
298.1Intense
308.1Intense
318.1Intense
Planning a trip in May

Is May a good time to visit Fillmore?

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

8.4
Sightseeing
4th-best month of the year
6.0
Beach & pool
6th-best month of the year

May is one of the better times to visit Fillmore for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Fillmore in May

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

In May, Fillmore sees daytime highs around 72°F and nights near 51°F. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

Sea temperature near Fillmore in May

The nearest coast averages about 60°F 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 22 mi away) is warmest in August at about 67°F and coldest in March near 58°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

55°60°65°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°F)Comfort
Jan58Bracing
Feb58Bracing
Mar58Bracing
Apr58Bracing
May60Cool
Jun63Cool
Jul66Cool
Aug67Cool
Sep67Cool
Oct65Cool
Nov62Cool
Dec60Cool

UV index in Fillmore in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Fillmore peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 11Dec 15UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5Moderate
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in Fillmore 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 Fillmore is worst in December — around 78 µg/m³ PM2.5 (unhealthy), about 12.6× the cleanest month (January, 6 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyDec 1670 µg/m³Jan 246 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar8Good
Apr7Good
May7Good
Jun7Good
Jul11Good
Aug12Good
Sep11Good
Oct8Good
Nov14Moderate
Dec78Unhealthy
Location & terrain

Where is Fillmore?

Fillmore sits at 34.4°N, 118.9°W, 456 ft above sea level, in United States. The nearest listed city is Moorpark, 8.1 mi away.

Topography around Fillmore

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Fillmore.

Within 2 miles, the terrain around Fillmore has significant variations in elevation — a maximum elevation change of 1,506 ft around an average of 597 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 5,476 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 8,796 ft.

The land around Fillmore is covered by trees (30%) and grassland (22%) within 2 miles, trees (38%) and grassland (34%) within 10 miles, and grassland (29%), water (26%) and trees (20%) within 50 miles.

2 miles
1,506 ft
10 miles
5,476 ft
50 miles
8,796 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Moorpark 8.1 mi · Santa Paula 8.7 mi · Simi Valley 12 mi · Camarillo 14 mi · Thousand Oaks 16 mi · Valencia 18 mi · Castaic 18 mi · Stevenson Ranch 20 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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 Fillmore (34.3992°, -118.9181°, elevation 456 ft), 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).