San Marino weather in April

In April, San Marino sees average daytime highs of 16°C and overnight lows near 10°C, with 71 mm of rain across 10.4 wet days and about 13.2 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 18°C by the end. The sky is clear or mostly clear about 41% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 30 min at the start of April to 13 h 54 min by month's end. Set against the rest of the year, April is San Marino's 7th-clearest and 4th-windiest month. For the whole year in context, see San Marino's year-round climate.

Daytime high: 16°; 7th warmest
Overnight low: 10°; 6th coldest
Rainfall: 71 mm; 10.4 wet days
Daylight: 13 h 12 min; 5:34 AM – 6:47 PM
Cloud cover: 52%; 7th clearest
Wind: 10 km/h; 4th windiest
Solar energy: 5.15 kWh/m²
Travel score: 5.1; out of 10

San Marino is capital city of San Marino.

Density: 635/km²; people per km²
Founded: ~301 CE

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

← March San Marino year-round climate May →Best places to visit in April

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 15°C in the first days to 18°C by the end.

A typical April day in San Marino reaches about 16°C in the afternoon and slips back to 10°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 20°C. Set against its neighbours, April runs about 3°C warmer than March and about 5°C cooler than May.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	15	15	15	15	15	15	15	15	15	15	16	16	16	16	16	16	16	16	17	17	17	17	17	17	18	18	18	18	18	18
Avg low (°C)	8	8	8	8	8	8	8	9	9	9	9	9	9	9	9	9	10	10	10	10	10	10	11	11	11	11	11	11	12	12

	Avg high (°C)	Avg low (°C)
1	15	8
2	15	8
3	15	8
4	15	8
5	15	8
6	15	8
7	15	8
8	15	9
9	15	9
10	15	9
11	16	9
12	16	9
13	16	9
14	16	9
15	16	9
16	16	9
17	16	10
18	16	10
19	17	10
20	17	10
21	17	10
22	17	10
23	17	11
24	17	11
25	18	11
26	18	11
27	18	11
28	18	11
29	18	12
30	18	12

San Marino weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	9° / 4°	60	8.8	1.4	9.1	1.7
Feb	10° / 4°	69	8.5	1.7	10.2	2.2
Mar	13° / 6°	66	8.5	0.7	11.6	3.8
Apr	16° / 10°	71	10.4	0	13.2	5.1
May	21° / 14°	65	9.3	0	14.5	6.7
Jun	26° / 18°	50	6.7	0	15.2	7.6
Jul	28° / 20°	38	5.8	0	14.9	7.2
Aug	28° / 20°	49	7	0	13.8	7.0
Sep	24° / 17°	75	9	0	12.3	7.2
Oct	19° / 13°	83	9.6	0	10.8	6.1
Nov	14° / 9°	91	10.9	0.4	9.4	3.8
Dec	10° / 5°	81	10.6	1.1	8.8	2.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 14% of April, with mostly cloudy or overcast conditions the remaining 45%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	55	55	56	56	56	55	56	56	56	56	56	57	57	57	57	57	56	55	55	54	54	53	53	52	52	51	51	51	51	52
Cloudier (%)	45	45	44	44	44	45	44	44	44	44	44	43	43	43	43	43	44	45	45	46	46	47	47	48	48	49	49	49	49	48

	Clearer (%)	Cloudier (%)
1	55	45
2	55	45
3	56	44
4	56	44
5	56	44
6	55	45
7	56	44
8	56	44
9	56	44
10	56	44
11	56	44
12	57	43
13	57	43
14	57	43
15	57	43
16	57	43
17	56	44
18	55	45
19	55	45
20	54	46
21	54	46
22	53	47
23	53	47
24	52	48
25	52	48
26	51	49
27	51	49
28	51	49
29	51	49
30	52	48

Chance of precipitation in April

Any precipitation

San Marino gets around 71 mm of rain over 10.4 wet days in April. 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 36% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	34	34	35	35	35	35	35	36	36	36	36	36	36	36	36	35	35	34	34	34	34	34	34	34	34	34	34	35	35	35

	Rain chance (%)
1	34
2	34
3	35
4	35
5	35
6	35
7	35
8	36
9	36
10	36
11	36
12	36
13	36
14	36
15	36
16	35
17	35
18	34
19	34
20	34
21	34
22	34
23	34
24	34
25	34
26	34
27	34
28	35
29	35
30	35

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	99	99	99	98	98	97	97	96	95	94	92	91	90	88	87	85
Comfortable (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	2	2	3	3	4	5	6	8	9	10	12	13	15

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	99	1
16	99	1
17	99	1
18	98	2
19	98	2
20	97	3
21	97	3
22	96	4
23	95	5
24	94	6
25	92	8
26	91	9
27	90	10
28	88	12
29	87	13
30	85	15

Wind in April

Winds average 10 km/h in April.

Across April, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	11	11	11	11	11	11	11	11	11	11	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	11	calm
2	11	calm
3	11	calm
4	11	calm
5	11	calm
6	11	calm
7	11	calm
8	11	calm
9	11	calm
10	11	calm
11	10	calm
12	10	calm
13	10	calm
14	10	calm
15	10	calm
16	10	calm
17	10	calm
18	10	calm
19	10	calm
20	10	calm
21	10	calm
22	10	calm
23	10	calm
24	10	calm
25	10	calm
26	10	calm
27	10	calm
28	10	calm
29	10	calm
30	10	calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 30 min at the start of April to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 84 minutes over April. Sunrise moves from 6:01 AM to 5:11 AM, and sunset from 6:28 PM to 7:04 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.5	12.5	12.6	12.6	12.7	12.7	12.8	12.8	12.9	12.9	13.0	13.0	13.1	13.1	13.2	13.2	13.3	13.3	13.4	13.4	13.5	13.5	13.6	13.6	13.6	13.7	13.7	13.8	13.8	13.9
Sunrise (AM)	6:01	5:59	5:58	5:56	5:54	5:52	5:50	5:48	5:47	5:45	5:43	5:41	5:39	5:38	5:36	5:34	5:32	5:31	5:29	5:27	5:26	5:24	5:22	5:21	5:19	5:17	5:16	5:14	5:13	5:11
Sunset (PM)	6:28	6:30	6:31	6:32	6:33	6:35	6:36	6:37	6:38	6:39	6:41	6:42	6:43	6:44	6:46	6:47	6:48	6:49	6:51	6:52	6:53	6:54	6:55	6:57	6:58	6:59	7:00	7:02	7:03	7:04

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.5	6:01	6:28
2	12.5	5:59	6:30
3	12.6	5:58	6:31
4	12.6	5:56	6:32
5	12.7	5:54	6:33
6	12.7	5:52	6:35
7	12.8	5:50	6:36
8	12.8	5:48	6:37
9	12.9	5:47	6:38
10	12.9	5:45	6:39
11	13.0	5:43	6:41
12	13.0	5:41	6:42
13	13.1	5:39	6:43
14	13.1	5:38	6:44
15	13.2	5:36	6:46
16	13.2	5:34	6:47
17	13.3	5:32	6:48
18	13.3	5:31	6:49
19	13.4	5:29	6:51
20	13.4	5:27	6:52
21	13.5	5:26	6:53
22	13.5	5:24	6:54
23	13.6	5:22	6:55
24	13.6	5:21	6:57
25	13.6	5:19	6:58
26	13.7	5:17	6:59
27	13.7	5:16	7:00
28	13.8	5:14	7:02
29	13.8	5:13	7:03
30	13.9	5:11	7:04

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.15 kWh/m².

For context, solar energy here swings from a low near 1.34 kWh/m² to a high of 6.81 kWh/m² in July across the year — April's 5.15 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	4.6	4.7	4.7	4.8	4.8	4.8	4.9	4.9	5.0	5.0	5.0	5.1	5.1	5.2	5.2	5.2	5.3	5.3	5.3	5.3	5.4	5.4	5.4	5.4	5.5	5.5	5.5	5.5	5.5	5.6
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.6	Bright
2	4.7	Bright
3	4.7	Bright
4	4.8	Bright
5	4.8	Bright
6	4.8	Bright
7	4.9	Bright
8	4.9	Bright
9	5.0	Bright
10	5.0	Bright
11	5.0	Bright
12	5.1	Bright
13	5.1	Bright
14	5.2	Bright
15	5.2	Bright
16	5.2	Bright
17	5.3	Bright
18	5.3	Bright
19	5.3	Bright
20	5.3	Bright
21	5.4	Bright
22	5.4	Bright
23	5.4	Bright
24	5.4	Bright
25	5.5	Bright
26	5.5	Bright
27	5.5	Bright
28	5.5	Bright
29	5.5	Bright
30	5.6	Bright

Planning a trip in April

Is April a good time to visit San Marino?

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

5.1

Sightseeing

7th-best month of the year

0.9

Beach & pool

7th-best month of the year

April is a reasonable time to visit San Marino for sightseeing.

What to pack for San Marino in April

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

In April, San Marino sees daytime highs around 16°C and nights near 10°C. Worth packing: a warm layer, rain gear and sun protection. About 10 days see rain.

a warm layerrain gearsun protection

Sea temperature near San Marino in April

The nearest coast averages about 14°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 25 km away) is warmest in August at about 26°C and coldest in February near 10°C.

It's comfortable for a long swim from May 29 to Oct 11 — about 4.5 months when the water holds above 20°C.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	11	10	11	14	18	23	25	26	23	19	16	13
Comfort	Bracing	Bracing	Bracing	Bracing	Cool	Refreshing	Warm	Warm	Refreshing	Cool	Cool	Bracing

	Sea temperature (°C)	Comfort
Jan	11	Bracing
Feb	10	Bracing
Mar	11	Bracing
Apr	14	Bracing
May	18	Cool
Jun	23	Refreshing
Jul	25	Warm
Aug	26	Warm
Sep	23	Refreshing
Oct	19	Cool
Nov	16	Cool
Dec	13	Bracing

UV index in San Marino in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Marino peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	3	5	7	7	8	9	8	5	3	2	1
Level	Low	Moderate	Moderate	High	High	Very high	Very high	Very high	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	3	Moderate
Mar	5	Moderate
Apr	7	High
May	7	High
Jun	8	Very high
Jul	9	Very high
Aug	8	Very high
Sep	5	Moderate
Oct	3	Moderate
Nov	2	Low
Dec	1	Low

Air quality in San Marino in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in San Marino is worst in March — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	12	14	16	15	14	13	12	11	11	13	11	11
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Good	Moderate	Good	Good

	PM2.5 (µg/m³)	Level
Jan	12	Moderate
Feb	14	Moderate
Mar	16	Moderate
Apr	15	Moderate
May	14	Moderate
Jun	13	Moderate
Jul	12	Good
Aug	11	Good
Sep	11	Good
Oct	13	Moderate
Nov	11	Good
Dec	11	Good

Location & terrain

Where is San Marino?

San Marino sits at 43.9°N, 12.4°E, 683 m above sea level, in San Marino. The nearest listed city is Rimini, 16 km away.

Topography around San Marino

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

Within 3 km, the terrain around San Marino has significant variations in elevation — a maximum elevation change of 568 m around an average of 341 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,223 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,691 m.

The land around San Marino is covered by trees (41%) and grassland (26%) within 3 km, trees (35%), grassland (30%) and cropland (26%) within 16 km, and trees (45%) and water (22%) within 80 km.

3 km

568 m

trees 41%

16 km

1,223 m

trees 35%

80 km

1,691 m

trees 45%

treesshrubsgrasslandcroplandartificial surfaceswater

← March San Marino year-round climate May →Best places to visit in April

April weather nearby: Rimini 16 km · Riccione 18 km · Bellaria-Igea Marina 23 km · Cattolica 23 km · Cesena 28 km · Cesenatico 30 km · Cervia 37 km · Pesaro 38 km

San Marino travel facts

Power plugs: Type C / F / L; 230 V · 50 Hz
Prices: ≈ 79% of US; price level, 2023
GDP per capita: $59,871; 2023
Safe drinking water: 100%; of population, 2024
Homicide rate: 3.6; per 100k, 2002
Road deaths: 0; per 100k/yr, 2016
Income group: High; World Bank

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 San Marino (43.9367°, 12.4464°, elevation 683 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. 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).

	Avg high (°C)	Avg low (°C)
1	15	8
2	15	8
3	15	8
4	15	8
5	15	8
6	15	8
7	15	8
8	15	9
9	15	9
10	15	9
11	16	9
12	16	9
13	16	9
14	16	9
15	16	9
16	16	9
17	16	10
18	16	10
19	17	10
20	17	10
21	17	10
22	17	10
23	17	11
24	17	11
25	18	11
26	18	11
27	18	11
28	18	11
29	18	12
30	18	12

	Clearer (%)	Cloudier (%)
1	55	45
2	55	45
3	56	44
4	56	44
5	56	44
6	55	45
7	56	44
8	56	44
9	56	44
10	56	44
11	56	44
12	57	43
13	57	43
14	57	43
15	57	43
16	57	43
17	56	44
18	55	45
19	55	45
20	54	46
21	54	46
22	53	47
23	53	47
24	52	48
25	52	48
26	51	49
27	51	49
28	51	49
29	51	49
30	52	48

	Rain chance (%)
1	34
2	34
3	35
4	35
5	35
6	35
7	35
8	36
9	36
10	36
11	36
12	36
13	36
14	36
15	36
16	35
17	35
18	34
19	34
20	34
21	34
22	34
23	34
24	34
25	34
26	34
27	34
28	35
29	35
30	35

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	99	1
16	99	1
17	99	1
18	98	2
19	98	2
20	97	3
21	97	3
22	96	4
23	95	5
24	94	6
25	92	8
26	91	9
27	90	10
28	88	12
29	87	13
30	85	15

	Avg high (°C)	Avg low (°C)
1	15	8
2	15	8
3	15	8
4	15	8
5	15	8
6	15	8
7	15	8
8	15	9
9	15	9
10	15	9
11	16	9
12	16	9
13	16	9
14	16	9
15	16	9
16	16	9
17	16	10
18	16	10
19	17	10
20	17	10
21	17	10
22	17	10
23	17	11
24	17	11
25	18	11
26	18	11
27	18	11
28	18	11
29	18	12
30	18	12

	Clearer (%)	Cloudier (%)
1	55	45
2	55	45
3	56	44
4	56	44
5	56	44
6	55	45
7	56	44
8	56	44
9	56	44
10	56	44
11	56	44
12	57	43
13	57	43
14	57	43
15	57	43
16	57	43
17	56	44
18	55	45
19	55	45
20	54	46
21	54	46
22	53	47
23	53	47
24	52	48
25	52	48
26	51	49
27	51	49
28	51	49
29	51	49
30	52	48

	Rain chance (%)
1	34
2	34
3	35
4	35
5	35
6	35
7	35
8	36
9	36
10	36
11	36
12	36
13	36
14	36
15	36
16	35
17	35
18	34
19	34
20	34
21	34
22	34
23	34
24	34
25	34
26	34
27	34
28	35
29	35
30	35

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	99	1
16	99	1
17	99	1
18	98	2
19	98	2
20	97	3
21	97	3
22	96	4
23	95	5
24	94	6
25	92	8
26	91	9
27	90	10
28	88	12
29	87	13
30	85	15

	Avg high (°C)	Avg low (°C)
1	15	8
2	15	8
3	15	8
4	15	8
5	15	8
6	15	8
7	15	8
8	15	9
9	15	9
10	15	9
11	16	9
12	16	9
13	16	9
14	16	9
15	16	9
16	16	9
17	16	10
18	16	10
19	17	10
20	17	10
21	17	10
22	17	10
23	17	11
24	17	11
25	18	11
26	18	11
27	18	11
28	18	11
29	18	12
30	18	12

	Clearer (%)	Cloudier (%)
1	55	45
2	55	45
3	56	44
4	56	44
5	56	44
6	55	45
7	56	44
8	56	44
9	56	44
10	56	44
11	56	44
12	57	43
13	57	43
14	57	43
15	57	43
16	57	43
17	56	44
18	55	45
19	55	45
20	54	46
21	54	46
22	53	47
23	53	47
24	52	48
25	52	48
26	51	49
27	51	49
28	51	49
29	51	49
30	52	48

	Rain chance (%)
1	34
2	34
3	35
4	35
5	35
6	35
7	35
8	36
9	36
10	36
11	36
12	36
13	36
14	36
15	36
16	35
17	35
18	34
19	34
20	34
21	34
22	34
23	34
24	34
25	34
26	34
27	34
28	35
29	35
30	35

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	99	1
16	99	1
17	99	1
18	98	2
19	98	2
20	97	3
21	97	3
22	96	4
23	95	5
24	94	6
25	92	8
26	91	9
27	90	10
28	88	12
29	87	13
30	85	15