5-day weather forecast Sofia 18-05-2026

Weather forecast Sofia tomorrow 18.05.2026: patchy rain possible, temperature from 7 °C to 17 °C.

Precipitation probability 72%. Wind up to 3.31 m/s (gusts 3.81 m/s). Air humidity 59–91%, atmospheric pressure 761–763 mm Hg, UV index up to 5.8.

Sunrise 06:02
Sunset 20:45

Waxing Crescent2% illuminated
Moonrise 06:46 · Moonset 23:22

Chart

Table

← Sun, May 17

Mon, May 18, 2026

Tue, May 19 →

Forecast from 7 °C to 17 °C and precipitation

Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	8	8	8	8	8	7	7	8	9	11	12	13	14	15	16	16	17	17	16	15	13	9	8	8
Precipitation (mm/hr)	0.01	0.03	0.07	0	0	0	0	0	0	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.02	0.01	0	0	0

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	100	100	100	100	100	89	94	85	81	88	96	91	75	76	80	54	71	82	82	76	84	16	16	17
Rain chance (%)	72	69	100	0	0	0	0	0	0	86	64	81	89	86	88	70	89	71	71	89	64	0	0	0

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	2.69	2.61	2.5	2.31	1.81	1.69	1.69	1.5	1.89	2.31	2.5	2.61	2.81	2.89	3	3	3	3.19	3.31	2.89	1.89	1.31	0.69	0.5
Wind gust (m/s)	3.31	3.22	3.14	2.92	2.5	2.47	2.47	1.86	2.19	2.64	2.89	3	3.22	3.33	3.44	3.44	3.44	3.67	3.81	3.33	2.97	2.72	1.47	1.06
Wind direction (°)	W 274°	W 269°	W 268°	W 268°	W 276°	W 277°	W 276°	W 279°	WNW 287°	WNW 294°	WNW 301°	WNW 302°	NW 305°	NW 312°	NW 311°	NW 309°	NW 306°	NW 309°	NW 308°	NW 312°	NW 317°	NW 319°	NW 311°	NW 306°

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	90	90	90	90	91	91	91	89	85	80	76	71	68	64	62	60	59	60	63	70	78	84	85	86

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	761	761	761	761	761	761	761	761	762	762	761	761	761	761	761	761	761	761	761	761	761	762	762	763

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0.1	0.3	0.9	2.4	4.1	5.1	5.8	5.8	5.1	4.4	2.8	1.4	0.6	0.2	0	0	0

Air quality & pollen

Air quality
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
PM2.5 (µg/m³)	8.4	8.7	8.7	8	7.8	8.2	8.1	8	8	8.2	8.8	9.4	9	7.7	6.9	7.2	7.5	7.8	7.7	7.8	7.9	8.2	9.8	10.1
PM10 (µg/m³)	9	9.3	9.7	8.6	8.4	8.9	9.5	9.6	9.9	10.2	10.7	11.1	10.2	9.9	9.2	8.7	8.7	9	9.1	8.8	9.4	9.8	10.8	11.8
Ozone (O₃) (µg/m³)	77	74	74	74	74	74	73	72	71	72	73	73	75	77	82	86	91	95	92	89	90	90	89	82
NO₂ (µg/m³)	3.2	3.3	3.2	3	2.7	2.6	2.5	2.6	2.7	3.1	4.2	4.1	4.5	3.8	3.1	2.6	2.4	2.4	2.4	2.3	2.7	3.4	4.5	6.8
SO₂ (µg/m³)	2.8	2.6	2.3	2	2	1.9	1.9	2.2	2.4	2.5	3	3.3	3.8	3.9	4	3.6	3.3	3.2	3.1	3.2	3.2	3	3.4	3.5
CO (µg/m³)	144.9	142.9	138.9	135.9	132.9	130.9	129.9	129.9	131.9	132.9	134.9	134.9	134.9	130.9	127.9	124.9	121.9	122.9	121.9	121.9	122.9	129.9	133.9	138.9

← Sun, May 17

Mon, May 18, 2026

Tue, May 19 →

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Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.

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