Roseburg weather in May

In May, Roseburg sees average daytime highs of 66°F and overnight lows near 45°F, with 3.1 in of rain across 10.6 wet days and about 14.4 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 64°F in the first days to 68°F by the end. The sky is clear or mostly clear about 25% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 54 min at the start of May to 14 h 54 min by month's end. Set against the rest of the year, May is Roseburg's 6th-clearest and 9th-windiest month. For the whole year in context, see Roseburg's year-round climate.

Daytime high
66°
5th warmest
Overnight low
45°
8th coldest
Rainfall
3.1 in
10.6 wet days
Daylight
14 h 30 min
4:55 AM – 7:24 PM
Cloud cover
63%
6th clearest
Wind
4 mph
9th windiest
Solar energy
5.79 kWh/m²
Travel score
5.9
out of 10

Roseburg is city in and seat of Douglas County, Oregon, United States.

Density
837/km²
people per km²
Founded
1851

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 64°F in the first days to 68°F by the end.

A typical May day in Roseburg reaches about 66°F in the afternoon and slips back to 45°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 54°F and 78°F. Set against its neighbours, May runs about 6°F warmer than April and about 6°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
16342
26342
36443
46443
56443
66443
76444
86444
96544
106544
116544
126545
136545
146545
156545
166645
176646
186646
196646
206646
216746
226746
236746
246747
256747
266847
276847
286847
296847
306947
316947

How May really feels in Roseburg

Once humidity and wind are folded in, May averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Roseburg weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan48° / 34°6.216.13.49.21.5
Feb51° / 35°4.914.53.210.22.2
Mar55° / 37°5.816.6311.63.0
Apr59° / 40°4.615.41.413.24.0
May66° / 45°3.110.6014.45.9
Jun72° / 49°1.66.9015.17.3
Jul81° / 54°0.31.6014.98.1
Aug82° / 54°0.42013.88.0
Sep76° / 50°1.24.7012.38.1
Oct65° / 43°3.49.9010.86.0
Nov53° / 38°6.315.91.49.52.5
Dec47° / 34°7.816.83.48.91.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33961
43961
53961
63961
73961
83862
93862
103862
113763
123763
133664
143664
153664
163664
173664
183565
193565
203565
213763
223763
233763
243763
253961
263961
274060
284060
294060
304159
314159

Chance of precipitation in May

Any precipitation

Roseburg gets around 3.1 in of rain over 10.6 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 35% and peaks near 38% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
237
336
436
536
635
735
835
936
1036
1136
1236
1336
1436
1536
1636
1736
1836
1936
2035
2135
2234
2334
2433
2532
2632
2731
2831
2931
3030
3130

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 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19910
29910
39910
49910
59820
69820
79820
89820
99820
109730
119730
129730
139730
149730
159730
169730
179640
189640
199640
209640
219640
229640
239550
249550
259550
269550
279451
289361
299361
309361
319361

Wind in May

Winds average 4 mph in May.

Across May, daily wind ranges from about 4 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
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 13 h 54 min at the start of May to 14 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over May. Sunrise moves from 5:14 AM to 4:43 AM, and sunset from 7:07 PM to 7:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:147:07
213.95:137:08
314.05:117:09
414.05:107:10
514.05:097:11
614.15:077:13
714.15:067:14
814.25:057:15
914.25:037:16
1014.35:027:17
1114.35:017:18
1214.35:007:19
1314.44:597:21
1414.44:587:22
1514.44:567:23
1614.54:557:24
1714.54:547:25
1814.54:537:26
1914.64:527:27
2014.64:517:28
2114.64:507:29
2214.74:497:30
2314.74:497:31
2414.74:487:32
2514.84:477:33
2614.84:467:34
2714.84:467:35
2814.94:457:36
2914.94:447:37
3014.94:447:38
3114.94:437:39

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.79 kWh/m².

For context, solar energy here swings from a low near 1.34 kWh/m² to a high of 7.46 kWh/m² in July across the year — May's 5.79 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.6Bright
45.6Bright
55.6Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
266.0Bright
276.0Intense
286.0Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in May

Hazard calendar for Roseburg

In seasonPeak

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

Roseburg's rainy season runs November–April, 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 Roseburg?

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

5.9
Sightseeing
6th-best month of the year
2.4
Beach & pool
5th-best month of the year

May is a reasonable time to visit Roseburg for sightseeing.

What to pack for Roseburg in May

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

In May, Roseburg sees daytime highs around 66°F and nights near 45°F. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

UV index in Roseburg in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Roseburg peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 9Dec 17UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar5Moderate
Apr6High
May9Very high
Jun8Very high
Jul9Very high
Aug7Very high
Sep5High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Roseburg 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 Roseburg is worst in September — around 73 µg/m³ PM2.5 (unhealthy), about 16.1× the cleanest month (January, 5 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyModerateSep 1566 µg/m³Jan 225 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb6Good
Mar8Good
Apr9Good
May9Good
Jun7Good
Jul13Moderate
Aug31Moderate
Sep73Unhealthy
Oct11Good
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Roseburg?

Roseburg sits at 43.2°N, 123.3°W, 482 ft above sea level, in United States. The nearest listed city is Coos Bay, 45 mi away.

Topography around Roseburg

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

Within 2 miles, the terrain around Roseburg has significant variations in elevation — a maximum elevation change of 1,060 ft around an average of 673 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,858 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,706 ft.

The land around Roseburg is covered by trees (54%) and artificial surfaces (25%) within 2 miles, trees (55%) and grassland (39%) within 10 miles, and trees (90%) within 50 miles.

2 miles
1,060 ft
10 miles
2,858 ft
50 miles
6,706 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Coos Bay 45 mi · Grants Pass 53 mi · Eugene 59 mi · Springfield 60 mi · Central Point 62 mi · Medford 66 mi · Ashland 78 mi · Corvallis 93 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 Roseburg (43.2165°, -123.3417°, elevation 482 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. 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).