Valmiera weather in September

In September, Valmiera sees average daytime highs of 16°C and overnight lows near 8°C, with 52 mm of rain across 10.7 wet days and about 12.5 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 18°C in the first days to 13°C by the end. The sky is clear or mostly clear about 16% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of September to 11 h 18 min by month's end. Set against the rest of the year, September is Valmiera's 6th-clearest and 7th-windiest month. For the whole year in context, see Valmiera's year-round climate.

Daytime high
16°
5th warmest
Overnight low
9th coldest
Rainfall
52 mm
10.7 wet days
Daylight
12 h 30 min
5:58 AM – 6:27 PM
Cloud cover
69%
6th clearest
Wind
14 km/h
7th windiest
Solar energy
2.54 kWh/m²
Travel score
4.7
out of 10

Valmiera is state city of Latvia and capital of Valmiera Municipality.

Density
1,179/km²
people per km²
Founded
1293

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 18°C in the first days to 13°C by the end.

A typical September day in Valmiera reaches about 16°C in the afternoon and slips back to 8°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 20°C. Set against its neighbours, September runs about 5°C cooler than August and about 7°C warmer than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
11910
21810
31810
41810
51810
6189
7189
8179
9179
10179
11179
12179
13168
14168
15168
16168
17168
18158
19157
20157
21157
22157
23147
24147
25147
26147
27147
28136
29136
30136

How September really feels in Valmiera

Once humidity and wind are folded in, September 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

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

Valmiera weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -6°4510.58.470.0
Feb-2° / -7°389.37.790.0
Mar / -4°389.55.711.40.1
Apr10° / 429.52.213.92.4
May16° / 5410.60.116.35.0
Jun19° / 10°7712.4017.65.7
Jul22° / 13°6612.5017.16.3
Aug21° / 12°7212.60156.0
Sep16° / 5210.7012.54.7
Oct / 6211.91.1101.8
Nov / -0°5211.34.37.70.0
Dec / -4°4410.97.76.40.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13367
23367
33367
43466
53466
63466
73466
83565
93466
103466
113466
123565
133565
143565
153565
163565
173565
183466
193466
203466
213466
223466
233367
243268
253268
263268
273268
283169
293070
303070

Chance of precipitation in September

Any precipitation

Valmiera gets around 52 mm of rain over 10.7 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 36% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
140
239
339
438
538
638
737
837
937
1037
1137
1237
1336
1436
1536
1635
1735
1835
1935
2035
2135
2235
2335
2435
2535
2635
2736
2836
2936
3036

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
178211
279201
380191
481181
582171
683161
784151
885141
986131
1087121
1188111
1288111
1389101
149091
159181
169370
179460
189460
199550
209640
219640
229640
239730
249730
259730
269730
279820
289820
299820
309820

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 42 min at the start of September to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 144 minutes over September. Sunrise moves from 5:26 AM to 6:29 AM, and sunset from 7:10 PM to 5:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:267:10
213.75:287:08
313.65:307:05
413.55:327:02
513.45:346:59
613.35:366:56
713.25:396:53
813.25:416:50
913.15:436:47
1013.05:456:45
1112.95:476:42
1212.85:496:39
1312.75:526:36
1412.75:546:33
1512.65:566:30
1612.55:586:27
1712.46:006:24
1812.36:026:21
1912.26:056:18
2012.16:076:16
2112.16:096:13
2212.06:116:10
2311.96:136:07
2411.86:156:04
2511.76:186:01
2611.66:205:58
2711.66:225:55
2811.56:245:52
2911.46:265:50
3011.36:295:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.54 kWh/m².

For context, solar energy here swings from a low near 0.27 kWh/m² to a high of 5.45 kWh/m² in June across the year — September's 2.54 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.2Moderate
23.2Moderate
33.1Moderate
43.1Moderate
53.0Moderate
63.0Moderate
72.9Moderate
82.9Moderate
92.9Moderate
102.8Moderate
112.8Moderate
122.7Moderate
132.7Moderate
142.6Moderate
152.6Moderate
162.5Moderate
172.5Moderate
182.4Moderate
192.4Moderate
202.3Moderate
212.3Moderate
222.3Moderate
232.2Moderate
242.2Moderate
252.1Moderate
262.1Moderate
272.0Moderate
282.0Dim
291.9Dim
301.9Dim
Planning a trip in September

Is September a good time to visit Valmiera?

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

4.7
Sightseeing
5th-best month of the year
0.8
Beach & pool
5th-best month of the year

September is a reasonable time to visit Valmiera for sightseeing.

What to pack for Valmiera in September

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

In September, Valmiera sees daytime highs around 16°C and nights near 8°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Valmiera in September

The nearest coast averages about 16°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 63 km away) is warmest in August at about 19°C and coldest in February near 1°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan2Bracing
Feb1Bracing
Mar1Bracing
Apr3Bracing
May8Bracing
Jun14Bracing
Jul18Cool
Aug19Cool
Sep16Cool
Oct11Bracing
Nov8Bracing
Dec5Bracing

UV index in Valmiera in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Valmiera peaks around June 21 at about 6 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 21UV 6Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun6High
Jul5High
Aug5Moderate
Sep3Moderate
Oct1Low
Nov1Low
Dec0Low
Location & terrain

Where is Valmiera?

Valmiera sits at 57.5°N, 25.4°E, 45 m above sea level, in Latvia. The nearest listed city is Cēsis, 27 km away.

CēsisValgaSiguldaOtepääMadonaOgreSalaspils

Topography around Valmiera

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

Within 3 km, the terrain around Valmiera has only modest variations in elevation — a maximum elevation change of 58 m around an average of 51 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 111 m; within 80 km, significant variations in elevation — a maximum elevation change of 308 m.

The land around Valmiera is covered by trees (44%) and grassland (25%) within 3 km, trees (56%) and cropland (24%) within 16 km, and trees (65%) within 80 km.

3 km
58 m
16 km
111 m
80 km
308 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Cēsis 27 km · Valga 45 km · Sigulda 55 km · Otepää 86 km · Madona 90 km · Viljandi 92 km · Ogre 94 km · Salaspils 99 km

Latvia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 57% of US
price level, 2025
GDP per capita
$26,312
2025
Happiness
6.4 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
2.5
per 100k, 2023
Road deaths
8.1
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 599
Religion
Lutheran 36%unspecified/none 24%Roman Catholic 20%Orthodox 19%

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 Valmiera (57.5411°, 25.4275°, elevation 45 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).