Rūdsar weather in April

In April, Rūdsar sees average daytime highs of 16°C and overnight lows near 12°C, with 74 mm of rain across 10.6 wet days and about 12.9 hours of daylight. It is the 8th-warmest and 8th-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 32% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 30 min by month's end. Set against the rest of the year, April is Rūdsar's 10th-clearest and 7th-windiest month. For the whole year in context, see Rūdsar's year-round climate.

Daytime high
16°
8th warmest
Overnight low
12°
5th coldest
Rainfall
74 mm
10.6 wet days
Daylight
13 hours
5:41 AM – 6:38 PM
Cloud cover
59%
10th clearest
Wind
11 km/h
7th windiest
Solar energy
5.29 kWh/m²
Travel score
5.0
out of 10

Rūdsar is city in Gilan Province, Iran.

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

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 Rūdsar reaches about 16°C in the afternoon and slips back to 12°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 21°C. Set against its neighbours, April runs about 4°C warmer than March and about 5°C cooler than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
11410
21410
31511
41511
51511
61511
71511
81511
91611
101612
111612
121612
131612
141612
151612
161612
171712
181713
191713
201713
211713
221713
231713
241713
251713
261714
271814
281814
291814
301814

Rūdsar weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 123131.29.72.7
Feb11° / 11612.51.610.62.4
Mar13° / 10613.50.411.73.3
Apr16° / 12°7410.6012.95.0
May21° / 17°417.70146.9
Jun25° / 22°466.6014.57.8
Jul28° / 24°497.1014.37.1
Aug28° / 25°608.8013.46.6
Sep25° / 22°14512.8012.36.6
Oct22° / 18°18914.80116.0
Nov17° / 14°18614.50.2104.8
Dec13° / 10°136130.59.53.5

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 17% of April, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14753
24852
34753
44852
54951
64951
75050
85050
95050
105149
115050
125149
135149
145050
155050
165050
175050
185050
194852
204852
214852
224753
234753
244753
254654
264654
274654
284654
294753
304852

Chance of precipitation in April

Any precipitation

Rūdsar gets around 74 mm of rain over 10.6 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 39% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
139
238
338
437
537
636
735
835
934
1034
1133
1233
1333
1433
1533
1633
1734
1835
1935
2036
2136
2236
2336
2436
2536
2635
2735
2835
2934
3033

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 72% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19820
29730
39640
49550
59460
69370
79190
890100
988120
1086140
1184160
1281190
1379210
1477230
1575250
1672271
1770291
1868311
1965332
2064342
2161363
2260373
2357394
2454415
2552426
2649437
2747459
28444611
29414612
30394714

Wind in April

Winds average 11 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.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over April. Sunrise moves from 6:03 AM to 5:22 AM, and sunset from 6:24 PM to 6:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:036:24
212.46:016:25
312.46:006:26
412.55:586:27
512.55:576:28
612.65:556:29
712.65:546:30
812.65:526:30
912.75:516:31
1012.75:496:32
1112.85:486:33
1212.85:466:34
1312.85:456:35
1412.95:436:36
1512.95:426:37
1613.05:416:38
1713.05:396:39
1813.05:386:39
1913.15:366:40
2013.15:356:41
2113.15:346:42
2213.25:326:43
2313.25:316:44
2413.35:306:45
2513.35:286:46
2613.35:276:47
2713.45:266:48
2813.45:246:48
2913.45:236:49
3013.55:226:50

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.29 kWh/m².

For context, solar energy here swings from a low near 2.01 kWh/m² to a high of 6.34 kWh/m² in June across the year — April's 5.29 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
35.0Bright
45.0Bright
55.0Bright
65.1Bright
75.1Bright
85.1Bright
95.2Bright
105.2Bright
115.2Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.6Bright
305.6Bright
Planning a trip in April

Hazard calendar for Rūdsar

In seasonPeak

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

Rūdsar's rainy season runs September–March, when most of the year's rain falls.

Rūdsar sees seasonal dust haze (May), heaviest in May.

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

Is April a good time to visit Rūdsar?

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

5.0
Sightseeing
7th-best month of the year
0.9
Beach & pool
8th-best month of the year

April is a reasonable time to visit Rūdsar for sightseeing.

What to pack for Rūdsar in April

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

In April, Rūdsar sees daytime highs around 16°C and nights near 12°C. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

Sea temperature near Rūdsar in April

The nearest coast averages about 13°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 28°C and coldest in February near 10°C.

It's comfortable for a long swim from May 24 to Nov 5 — about 5.5 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb10Bracing
Mar11Bracing
Apr13Bracing
May19Cool
Jun24Warm
Jul27Warm
Aug28Warm
Sep26Warm
Oct23Refreshing
Nov19Cool
Dec15Bracing

UV index in Rūdsar in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rūdsar peaks around July 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 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 highHighModerateJul 18UV 9Jan 11UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Moderate

Air quality in Rūdsar 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 Rūdsar is worst in September — around 30 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (July, 15 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 2129 µg/m³Jul 1115 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb19Moderate
Mar26Moderate
Apr21Moderate
May20Moderate
Jun16Moderate
Jul15Moderate
Aug21Moderate
Sep30Moderate
Oct28Moderate
Nov22Moderate
Dec18Moderate
Location & terrain

Where is Rūdsar?

Rūdsar sits at 37.1°N, 50.3°E, -23 m above sea level, in Iran. The nearest listed city is Amlash, 10 km away.

Topography around Rūdsar

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

Within 3 km, the terrain around Rūdsar has only modest variations in elevation — a maximum elevation change of 16 m around an average of -22 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 974 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,165 m.

The land around Rūdsar is covered by cropland (38%) and artificial surfaces (25%) within 3 km, water (37%), trees (26%) and cropland (25%) within 16 km, and water (48%) and trees (21%) within 80 km.

3 km
16 m
16 km
974 m
80 km
4,165 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
April weather nearby: Amlash 10 km · Langarūd 14 km · Lāhījān 26 km · Āstāneh-ye Ashrafīyeh 34 km · Sīāhkal 37 km · Rāmsar 40 km · Katālem va Sādāt Shahr 45 km · Khomām 63 km

Iran travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F
220 V · 50 Hz
Prices
≈ 352% of US
price level, 2025
GDP per capita
$3,924
2025
Happiness
5.2 / 10
World Happiness, 2025
Safe drinking water
94%
of population, 2024
Homicide rate
2.4
per 100k, 2014
Road deaths
21.5
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 492
Religion
Muslim 99%Christian 1%Baha'i 0%agnostic 0%

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 Rūdsar (37.137°, 50.2917°, elevation -23 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).