Rohnert Park weather in March

In March, Rohnert Park sees average daytime highs of 61°F and overnight lows near 45°F, with 4.2 in of rain across 9.3 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 61°F through the month. The sky is clear or mostly clear about 36% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 h 06 min at the start of March to 12 h 18 min by month's end. Set against the rest of the year, March is Rohnert Park's 9th-clearest and 4th-windiest month. For the whole year in context, see Rohnert Park's year-round climate.

Daytime high
61°
9th warmest
Overnight low
45°
4th coldest
Rainfall
4.2 in
9.3 wet days
Daylight
11 h 42 min
6:30 AM – 6:11 PM
Cloud cover
55%
9th clearest
Wind
6 mph
4th windiest
Solar energy
4.61 kWh/m²
Travel score
5.3
out of 10

Rohnert Park is city in Sonoma County, California, United States.

Density
2,337/km²
people per km²
Founded
1962

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 61°F through the month.

A typical March day in Rohnert Park reaches about 61°F in the afternoon and slips back to 45°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 54°F and 69°F. Set against its neighbours, March runs about 2°F warmer than February and about 3°F cooler than April.

30°40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
15944
25944
36044
46044
56044
66044
76044
86045
96145
106145
116145
126145
136145
146145
156145
166145
176146
186146
196146
206146
216146
226146
236246
246246
256246
266246
276246
286246
296246
306246
316246

Rohnert Park weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan56° / 42°5.410.39.63.9
Feb59° / 43°5.69.310.54.5
Mar61° / 45°4.29.311.75.3
Apr64° / 47°1.95.6136.5
May68° / 50°1.03.314.17.7
Jun73° / 53°0.2114.69.0
Jul75° / 55°0.00.114.49.5
Aug75° / 55°0.00.213.59.5
Sep75° / 54°0.10.512.39.3
Oct71° / 51°1.23.1118.2
Nov62° / 45°2.86.29.95.9
Dec56° / 42°5.510.49.43.9

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 15% of March, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25050
35050
45149
55149
65149
75149
85149
95050
105050
115050
124951
134951
144951
154951
164852
174852
184951
194951
204951
214951
225050
235149
245149
255248
265347
275347
285446
295545
305545
315644

Chance of precipitation in March

Any precipitation

Rohnert Park gets around 4.2 in of rain over 9.3 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 34% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
134
233
333
433
532
632
732
831
931
1030
1130
1229
1329
1429
1529
1629
1730
1830
1930
2030
2129
2229
2328
2428
2527
2627
2726
2825
2925
3024
3124

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March 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 (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
29991
30991
31991

Wind in March

Winds average 6 mph in March.

Across March, daily wind ranges from about 6 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 06 min at the start of March to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over March. Sunrise moves from 6:52 AM to 6:06 AM, and sunset from 5:56 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:525:56
211.16:515:57
311.16:495:58
411.26:485:59
511.26:466:00
611.36:456:01
711.36:436:02
811.46:426:03
911.46:406:04
1011.46:396:05
1111.56:376:06
1211.56:366:07
1311.66:346:08
1411.66:336:09
1511.66:316:10
1611.76:306:11
1711.76:286:12
1811.86:276:13
1911.86:256:14
2011.96:236:15
2111.96:226:16
2211.96:206:17
2312.06:196:18
2412.06:176:19
2512.16:156:20
2612.16:146:21
2712.26:126:22
2812.26:116:23
2912.26:096:24
3012.36:076:25
3112.36:066:26

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.61 kWh/m².

For context, solar energy here swings from a low near 2.11 kWh/m² to a high of 7.93 kWh/m² in June across the year — March's 4.61 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
34.0Moderate
44.0Bright
54.1Bright
64.1Bright
74.2Bright
84.2Bright
94.3Bright
104.3Bright
114.4Bright
124.4Bright
134.5Bright
144.5Bright
154.6Bright
164.6Bright
174.7Bright
184.7Bright
194.7Bright
204.8Bright
214.8Bright
224.9Bright
235.0Bright
245.0Bright
255.1Bright
265.1Bright
275.2Bright
285.2Bright
295.3Bright
305.3Bright
315.4Bright
Planning a trip in March

Hazard calendar for Rohnert Park

In seasonPeak

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

Rohnert Park's rainy season runs November–March, when most of the year's rain falls.

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

Is March a good time to visit Rohnert Park?

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

5.3
Sightseeing
9th-best month of the year
0.7
Beach & pool
9th-best month of the year

March is a reasonable time to visit Rohnert Park for sightseeing.

What to pack for Rohnert Park in March

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

In March, Rohnert Park sees daytime highs around 61°F and nights near 45°F. Worth packing: a warm layer, rain gear and sun protection. About 9 days see rain.

a warm layerrain gearsun protection

Sea temperature near Rohnert Park in March

The nearest coast averages about 53°F in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 23 mi away) is warmest in September at about 55°F and coldest in May near 51°F.

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

50°52°54°56°JanFebMarAprMayJunJulAugSepOctNovDecbracing
Sea temperature (°F)Comfort
Jan53Bracing
Feb53Bracing
Mar53Bracing
Apr51Bracing
May51Bracing
Jun51Bracing
Jul53Bracing
Aug54Bracing
Sep55Bracing
Oct55Bracing
Nov54Bracing
Dec53Bracing

UV index in Rohnert Park in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rohnert Park peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 10Dec 17UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr6High
May9Very high
Jun10Extreme
Jul10Extreme
Aug9Very high
Sep6High
Oct5High
Nov2Moderate
Dec2Low

Air quality in Rohnert Park in March

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Rohnert Park is worst in September — around 24 µg/m³ PM2.5 (moderate), about 4.1× the cleanest month (June, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1623 µg/m³Jun 116 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar9Good
Apr7Good
May7Good
Jun6Good
Jul9Good
Aug17Moderate
Sep24Moderate
Oct16Moderate
Nov9Good
Dec7Good
Location & terrain

Where is Rohnert Park?

Rohnert Park sits at 38.3°N, 122.7°W, 105 ft above sea level, in United States. The nearest listed city is Santa Rosa, 6.8 mi away.

Topography around Rohnert Park

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

Within 2 miles, the terrain around Rohnert Park has only modest variations in elevation — a maximum elevation change of 253 ft around an average of 128 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,457 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,895 ft.

The land around Rohnert Park is covered by artificial surfaces (47%) and grassland (23%) within 2 miles, grassland (47%) and trees (28%) within 10 miles, and trees (34%), water (31%) and grassland (24%) within 50 miles.

2 miles
253 ft
10 miles
2,457 ft
50 miles
4,895 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
March weather nearby: Santa Rosa 6.8 mi · Petaluma 8.1 mi · Agua Caliente 12 mi · Windsor 16 mi · Novato 17 mi · Napa 23 mi · American Canyon 27 mi · San Rafael 27 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 Rohnert Park (38.3396°, -122.7011°, elevation 105 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).