September history in Valletta

Malta · Compare three complete years with the current year to date.

Month

Year

Mean air temperature

26°C

Mean daytime air temperature

28°C

Mean nighttime air temperature

25°C

Maximum air temperature

35°C

Minimum air temperature

20°C

Total precipitation

32.9 mm

Sunny days

Mean sea temperature

29.1°C

Minimum sea temperature

26.7°C

Maximum sea temperature

30.9°C

Maximum wind speed

19.9 km/h

Air temperature (°C)

Daily minimum, mean and maximum

Date	Mean (°C)	Maximum (°C)	Minimum (°C)
2026-09-01	30	33	28
2026-09-02	29	33	25
2026-09-03	29	35	25
2026-09-04	29	32	26
2026-09-05	29	34	24
2026-09-06	29	33	25
2026-09-07	28	33	24
2026-09-08	28	33	24
2026-09-09	28	33	25
2026-09-10	29	33	25
2026-09-11	29	34	25
2026-09-12	29	34	25
2026-09-13	27	30	25
2026-09-14	24	26	23
2026-09-15	24	27	22
2026-09-16	25	27	22
2026-09-17	26	30	21
2026-09-18	26	30	24
2026-09-19	24	28	23
2026-09-20	24	28	22
2026-09-21	25	28	23
2026-09-22	25	29	22
2026-09-23	24	27	23
2026-09-24	24	26	22
2026-09-25	24	26	21
2026-09-26	23	25	21
2026-09-27	23	26	21
2026-09-28	23	26	21
2026-09-29	24	26	21
2026-09-30	23	25	20

Sea temperature (°C)

Daily sea-surface mean

Date	Sea temperature (°C)
2026-09-01	30.6
2026-09-02	30.5
2026-09-03	30.4
2026-09-04	30.2
2026-09-05	30.3
2026-09-06	30.2
2026-09-07	30.1
2026-09-08	30.1
2026-09-09	29.9
2026-09-10	29.8
2026-09-11	29.9
2026-09-12	29.8
2026-09-13	29.6
2026-09-14	29.3
2026-09-15	29.0
2026-09-16	28.8
2026-09-17	28.7
2026-09-18	28.4
2026-09-19	28.3
2026-09-20	28.3
2026-09-21	28.2
2026-09-22	28.1
2026-09-23	27.8
2026-09-24	27.5
2026-09-25	27.3
2026-09-26	27.1
2026-09-27	26.9
2026-09-28	—
2026-09-29	—
2026-09-30	—

Wave height (m)

Daily mean wave height

Date	Wave height (m)
2026-09-01	0.6
2026-09-02	0.4
2026-09-03	0.4
2026-09-04	0.6
2026-09-05	0.5
2026-09-06	0.3
2026-09-07	0.3
2026-09-08	0.2
2026-09-09	0.3
2026-09-10	0.3
2026-09-11	0.7
2026-09-12	0.6
2026-09-13	0.7
2026-09-14	0.5
2026-09-15	0.5
2026-09-16	0.7
2026-09-17	0.7
2026-09-18	0.5
2026-09-19	0.4
2026-09-20	0.3
2026-09-21	0.3
2026-09-22	0.3
2026-09-23	1.0
2026-09-24	0.8
2026-09-25	0.5
2026-09-26	0.6
2026-09-27	1.1
2026-09-28	—
2026-09-29	—
2026-09-30	—

Precipitation (mm)

Daily precipitation total

Date	Precipitation (mm)
2026-09-01	0.0
2026-09-02	0.0
2026-09-03	0.0
2026-09-04	0.0
2026-09-05	0.0
2026-09-06	0.0
2026-09-07	0.0
2026-09-08	0.0
2026-09-09	0.0
2026-09-10	0.0
2026-09-11	0.3
2026-09-12	0.1
2026-09-13	1.0
2026-09-14	3.3
2026-09-15	2.3
2026-09-16	0.0
2026-09-17	0.0
2026-09-18	0.3
2026-09-19	11.5
2026-09-20	6.8
2026-09-21	0.0
2026-09-22	0.0
2026-09-23	3.8
2026-09-24	0.0
2026-09-25	0.1
2026-09-26	3.4
2026-09-27	0.0
2026-09-28	0.0
2026-09-29	0.0
2026-09-30	0.0

Sunshine duration (h)

WMO-defined direct sunshine hours

Date	Sunshine (h)
2026-09-01	12.0
2026-09-02	12.0
2026-09-03	12.0
2026-09-04	11.5
2026-09-05	12.0
2026-09-06	12.0
2026-09-07	12.0
2026-09-08	12.0
2026-09-09	12.0
2026-09-10	11.8
2026-09-11	12.0
2026-09-12	11.5
2026-09-13	5.5
2026-09-14	3.4
2026-09-15	9.0
2026-09-16	11.9
2026-09-17	11.7
2026-09-18	8.9
2026-09-19	0.0
2026-09-20	8.4
2026-09-21	11.4
2026-09-22	11.9
2026-09-23	10.8
2026-09-24	11.2
2026-09-25	11.3
2026-09-26	11.0
2026-09-27	11.4
2026-09-28	11.2
2026-09-29	11.0
2026-09-30	10.3

Humidity (%)

Daily mean relative humidity

Date	Humidity (%)
2026-09-01	66.0
2026-09-02	66.0
2026-09-03	67.0
2026-09-04	68.0
2026-09-05	64.0
2026-09-06	74.0
2026-09-07	73.0
2026-09-08	72.0
2026-09-09	74.0
2026-09-10	76.0
2026-09-11	73.0
2026-09-12	69.0
2026-09-13	75.0
2026-09-14	82.0
2026-09-15	76.0
2026-09-16	75.0
2026-09-17	67.0
2026-09-18	71.0
2026-09-19	86.0
2026-09-20	82.0
2026-09-21	76.0
2026-09-22	75.0
2026-09-23	74.0
2026-09-24	67.0
2026-09-25	71.0
2026-09-26	79.0
2026-09-27	61.0
2026-09-28	64.0
2026-09-29	68.0
2026-09-30	71.0

Wind (km/h)

Daily maximum wind speed

Date	Maximum wind (km/h)
2026-09-01	13.0
2026-09-02	5.9
2026-09-03	14.7
2026-09-04	14.1
2026-09-05	9.7
2026-09-06	9.8
2026-09-07	9.7
2026-09-08	11.2
2026-09-09	15.1
2026-09-10	10.9
2026-09-11	10.4
2026-09-12	14.6
2026-09-13	14.4
2026-09-14	13.2
2026-09-15	9.1
2026-09-16	14.6
2026-09-17	12.1
2026-09-18	10.9
2026-09-19	10.2
2026-09-20	4.3
2026-09-21	9.2
2026-09-22	13.3
2026-09-23	19.9
2026-09-24	10.5
2026-09-25	10.1
2026-09-26	15.3
2026-09-27	16.2
2026-09-28	13.4
2026-09-29	8.6
2026-09-30	10.9

Daily weather values

Source values for September 2026; unavailable readings are shown as gaps.

Date	Conditions	Min / max (°C)	Sea (°C)	Waves (m)	Rain (mm)	Sun (h)	Humidity (%)	Wind (km/h)
2026-09-01	Partly cloudy	28 / 33	30.6	0.6	0.0	12.0	66.0	13.0
2026-09-02	Partly cloudy	25 / 33	30.5	0.4	0.0	12.0	66.0	5.9
2026-09-03	Partly cloudy	25 / 35	30.4	0.4	0.0	12.0	67.0	14.7
2026-09-04	Partly cloudy	26 / 32	30.2	0.6	0.0	11.5	68.0	14.1
2026-09-05	Overcast	24 / 34	30.3	0.5	0.0	12.0	64.0	9.7
2026-09-06	Partly cloudy	25 / 33	30.2	0.3	0.0	12.0	74.0	9.8
2026-09-07	Mostly clear	24 / 33	30.1	0.3	0.0	12.0	73.0	9.7
2026-09-08	Foggy	24 / 33	30.1	0.2	0.0	12.0	72.0	11.2
2026-09-09	Partly cloudy	25 / 33	29.9	0.3	0.0	12.0	74.0	15.1
2026-09-10	Partly cloudy	25 / 33	29.8	0.3	0.0	11.8	76.0	10.9
2026-09-11	Overcast	25 / 34	29.9	0.7	0.3	12.0	73.0	10.4
2026-09-12	Overcast	25 / 34	29.8	0.6	0.1	11.5	69.0	14.6
2026-09-13	Rain showers	25 / 30	29.6	0.7	1.0	5.5	75.0	14.4
2026-09-14	Rain showers	23 / 26	29.3	0.5	3.3	3.4	82.0	13.2
2026-09-15	Rain showers	22 / 27	29.0	0.5	2.3	9.0	76.0	9.1
2026-09-16	Overcast	22 / 27	28.8	0.7	0.0	11.9	75.0	14.6
2026-09-17	Overcast	21 / 30	28.7	0.7	0.0	11.7	67.0	12.1
2026-09-18	Overcast	24 / 30	28.4	0.5	0.3	8.9	71.0	10.9
2026-09-19	Thunderstorm	23 / 28	28.3	0.4	11.5	0.0	86.0	10.2
2026-09-20	Thunderstorm	22 / 28	28.3	0.3	6.8	8.4	82.0	4.3
2026-09-21	Overcast	23 / 28	28.2	0.3	0.0	11.4	76.0	9.2
2026-09-22	Overcast	22 / 29	28.1	0.3	0.0	11.9	75.0	13.3
2026-09-23	Thunderstorm	23 / 27	27.8	1.0	3.8	10.8	74.0	19.9
2026-09-24	Partly cloudy	22 / 26	27.5	0.8	0.0	11.2	67.0	10.5
2026-09-25	Overcast	21 / 26	27.3	0.5	0.1	11.3	71.0	10.1
2026-09-26	Rain showers	21 / 25	27.1	0.6	3.4	11.0	79.0	15.3
2026-09-27	Partly cloudy	21 / 26	26.9	1.1	0.0	11.4	61.0	16.2
2026-09-28	Partly cloudy	21 / 26	—	—	0.0	11.2	64.0	13.4
2026-09-29	Overcast	21 / 26	—	—	0.0	11.0	68.0	8.6
2026-09-30	Partly cloudy	20 / 25	—	—	0.0	10.3	71.0	10.9