Tonekābon weather in May

In May, Tonekābon sees average daytime highs of 17°C and overnight lows near 12°C, with 87 mm of precipitation across 18.6 wet days and about 13.9 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 19°C by the end. The sky is clear or mostly clear about 27% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 30 min at the start of May to 14 h 18 min by month's end. Set against the rest of the year, May is Tonekābon's 9th-clearest and 12th-windiest month. For the whole year in context, see Tonekābon's year-round climate.

Daytime high
17°
5th warmest
Overnight low
12°
8th coldest
Precipitation
87 mm
18.6 wet days
Daylight
14 hours
5:04 AM – 7:02 PM
Cloud cover
59%
9th clearest
Wind
5 km/h
12th windiest
Solar energy
5.89 kWh/m²
Travel score
4.5
out of 10

Tonekābon is city in Mazandaran Province, Iran.

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 15°C in the first days to 19°C by the end.

A typical May day in Tonekābon reaches about 17°C in the afternoon and slips back to 12°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 21°C. Set against its neighbours, May runs about 4°C warmer than April and about 4°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1159
21510
31510
41610
51610
61610
71610
81611
91611
101711
111711
121711
131711
141712
151712
161712
171812
181812
191812
201812
211813
221813
231913
241913
251913
261913
271914
281914
291914
302014
312014

How May really feels in Tonekābon

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

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
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.

Tonekābon weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°8011.29.39.80.0
Feb / 8011.19.210.60.1
Mar / 8512.8911.71.3
Apr13° / 8114.72.912.93.2
May17° / 12°8718.60.213.94.5
Jun21° / 16°11819.9014.55.0
Jul23° / 18°12620.2014.35.3
Aug23° / 18°14620.4013.45.3
Sep21° / 15°21320.1012.24.9
Oct17° / 11°17316.50.6114.5
Nov11° / 14114.15.6102.4
Dec / 8311.18.59.50.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 21% of May, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
24060
34060
44060
54159
64258
74357
84456
94456
104555
114654
124654
134555
144654
154753
164753
174852
184951
195050
205050
215149
225248
235347
245347
255446
265545
275545
285644
295644
305545
315545

Chance of precipitation in May

Any precipitationSnow

Tonekābon gets around 87 mm of rain and snow over 18.6 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 60% and peaks near 63% on the wettest days, and about 0 day brings snow. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1573
2573
3573
4572
5572
6582
7581
8581
9581
10591
11591
12591
13601
14601
15610
16610
17610
18620
19620
20620
21620
22620
23630
24630
25630
26630
27630
28630
29630
30630
31630

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 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19820
29820
39730
49640
59550
69460
79370
89190
990100
1088120
1187130
1285150
1383170
1481190
1579210
1676240
1774260
1870291
1967321
2064351
2161381
2257412
2354442
2450473
2546494
2643516
2739547
2836559
29335710
30305713
31275815

Wind in May

Winds average 5 km/h in May, the calmest month.

Across May, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 30 min at the start of May to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over May. Sunrise moves from 5:19 AM to 4:55 AM, and sunset from 6:48 PM to 7:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:196:48
213.55:186:49
313.65:176:50
413.65:166:51
513.65:156:52
613.75:136:53
713.75:126:54
813.75:116:55
913.85:106:55
1013.85:096:56
1113.85:086:57
1213.85:076:58
1313.95:076:59
1413.95:067:00
1513.95:057:01
1614.05:047:02
1714.05:037:02
1814.05:027:03
1914.05:027:04
2014.15:017:05
2114.15:007:06
2214.14:597:06
2314.14:597:07
2414.24:587:08
2514.24:587:09
2614.24:577:10
2714.24:567:10
2814.34:567:11
2914.34:557:12
3014.34:557:13
3114.34:557:13

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.89 kWh/m².

For context, solar energy here swings from a low near 2.1 kWh/m² to a high of 6.17 kWh/m² in June across the year — May's 5.89 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.6Bright
65.6Bright
75.6Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
206.0Bright
216.0Intense
226.0Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in May

Is May a good time to visit Tonekābon?

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

4.5
Sightseeing
5th-best month of the year
1.3
Beach & pool
5th-best month of the year

May is a reasonable time to visit Tonekābon for sightseeing.

What to pack for Tonekābon in May

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

In May, Tonekābon sees daytime highs around 17°C and nights near 12°C. Pack rain gear. Worth having: sun protection. About 19 days see rain.

rain gearsun protection

Sea temperature near Tonekābon in May

The nearest coast averages about 19°C in May — 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 11°C.

It's comfortable for a long swim from May 22 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
Feb11Bracing
Mar11Bracing
Apr14Bracing
May19Cool
Jun24Warm
Jul27Warm
Aug28Warm
Sep26Warm
Oct23Refreshing
Nov19Cool
Dec15Bracing

UV index in Tonekābon 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 Tonekābon peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 17UV 9Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar4Moderate
Apr7High
May9Very high
Jun8Very high
Jul9Very high
Aug9Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec3Moderate

Air quality in Tonekābon 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 Tonekābon is worst in February — around 50 µg/m³ PM2.5 (poor), about 3.1× the cleanest month (July, 16 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorFeb 1149 µg/m³Jul 1817 µg/m³
PM2.5 (µg/m³)Level
Jan48Poor
Feb50Poor
Mar45Poor
Apr40Poor
May33Moderate
Jun21Moderate
Jul16Moderate
Aug20Moderate
Sep25Moderate
Oct30Moderate
Nov37Poor
Dec45Poor
Location & terrain

Where is Tonekābon?

Tonekābon sits at 36.8°N, 50.9°E, -15 m above sea level, in Iran. The nearest listed city is Katālem va Sādāt Shahr, 18 km away.

Topography around Tonekābon

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

Within 3 km, the terrain around Tonekābon has only modest variations in elevation — a maximum elevation change of 53 m around an average of -15 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,463 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,754 m.

The land around Tonekābon is covered by water (37%), trees (27%) and artificial surfaces (26%) within 3 km, water (48%) and trees (42%) within 16 km, and water (45%), grassland (29%) and trees (21%) within 80 km.

3 km
53 m
16 km
1,463 m
80 km
4,754 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Katālem va Sādāt Shahr 18 km · Rāmsar 23 km · Chālūs 52 km · Nowshahr 59 km · Rūdsar 63 km · Amlash 69 km · Langarūd 77 km · Lāhījān 88 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 Tonekābon (36.8163°, 50.8738°, elevation -15 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).