July
July · August · June
71climate match
Sweden · 1991–2020
Best time to visit
Sundsvall.
July leads for comfortable weather in Sundsvall: typically 20.8°C by day, 11.4°C at night, with 79 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortJuly
Typical high20.8°C
Typical low11.4°C
Rain in July79 mm
July
July · August · June
34climate match
August
August · July · June
81climate match
The weakest month is January, scoring 5 against July’s 71 — days reach only -1.3°C, 25° below the 24°C the score treats as ideal.
Month by month
The whole year,
without the guesswork.
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
Jan
5-1.3° / -8.6°
Feb
5-1° / -9.5°
Mar
53.2° / -6.2°
Apr
117.4° / -2°
May
3813.3° / 2.7°
Jun
5917.9° / 7.9°
Jul
7120.8° / 11.4°
Aug
6319.6° / 10.2°
Sep
4214.3° / 5.6°
Oct
77.4° / 0.9°
Nov
51.4° / -3.8°
Dec
5-0.7° / -7.4°
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | -1.3°C | -8.6°C | 55 mm | 9.4 | 1.7°C | 5 h 57 | 5 | Good coverage |
| February | -1°C | -9.5°C | 37 mm | 7.5 | 0.9°C | 8 h 40 | 5 | Good coverage |
| March | 3.2°C | -6.2°C | 38 mm | 6.6 | 0.9°C | 11 h 30 | 5 | Good coverage |
| April | 7.4°C | -2°C | 41 mm | 6.3 | 2.2°C | 14 h 42 | 11 | Good coverage |
| May | 13.3°C | 2.7°C | 43 mm | 7.3 | 5.5°C | 17 h 44 | 38 | Good coverage |
| June | 17.9°C | 7.9°C | 60 mm | 8.4 | 10.2°C | 19 h 52 | 59 | Good coverage |
| July | 20.8°C | 11.4°C | 79 mm | 9.5 | 15.0°C | 18 h 57 | 71 | Good coverage |
| August | 19.6°C | 10.2°C | 89 mm | 9.7 | 16.0°C | 16 h 02 | 63 | Good coverage |
| September | 14.3°C | 5.6°C | 66 mm | 8.4 | 12.9°C | 12 h 50 | 42 | Good coverage |
| October | 7.4°C | 0.9°C | 82 mm | 9.8 | 8.5°C | 9 h 46 | 7 | Good coverage |
| November | 1.4°C | -3.8°C | 70 mm | 10.5 | 5.2°C | 6 h 49 | 5 | Good coverage |
| December | -0.7°C | -7.4°C | 63 mm | 10.5 | 3.2°C | 5 h 03 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 11.0°C28 Jan 1992 | -38.8°C10 Jan 1987 | 33 mm26 Jan 1994 | 141 mm1994 · driest 0 mm in 1964 | 63 |
| February | 12.5°C23 Feb 1990 | -35.3°C15 Feb 1978 | 44 mm27 Feb 1989 | 120 mm1989 · driest 4 mm in 1980 | 62 |
| March | 16.6°C29 Mar 2007 | -31.0°C1 Mar 1947 | 46 mm7 Mar 1981 | 124 mm1995 · driest 4 mm in 2003 | 63 |
| April | 22.1°C21 Apr 2003 | -20.0°C9 Apr 1955 | 37 mm27 Apr 1992 | 130 mm1945 · driest 4 mm in 1987 | 62 |
| May | 28.0°C24 May 1989 | -9.2°C4 May 1981 | 25 mm18 May 1967 | 113 mm1967 · driest 3 mm in 1951 | 62 |
| June | 32.0°C28 Jun 1947 | -2.0°C10 Jun 1958 | 47 mm4 Jun 2005 | 154 mm1991 · driest 5 mm in 1988 | 62 |
| July | 32.6°C27 Jul 1994 | 1.5°C18 Jul 1968 | 56 mm6 Jul 1978 | 203 mm2000 · driest 8 mm in 1994 | 63 |
| August | 31.0°C8 Aug 1975 | -0.9°C25 Aug 1987 | 134 mm27 Aug 2001 | 253 mm1986 · driest 0 mm in 1947 | 62 |
| September | 25.9°C3 Sep 1999 | -7.0°C24 Sep 1952 | 92 mm11 Sep 1983 | 258 mm1983 · driest 5 mm in 1959 | 61 |
| October | 19.6°C9 Oct 1995 | -18.0°C31 Oct 1992 | 63 mm20 Oct 2006 | 238 mm2006 · driest 6 mm in 1947 | 61 |
| November | 14.4°C2 Nov 1984 | -23.0°C29 Nov 1955 | 59 mm10 Nov 1997 | 220 mm2000 · driest 13 mm in 2004 | 61 |
| December | 10.3°C24 Dec 2006 | -34.7°C31 Dec 1978 | 36 mm16 Dec 1993 | 214 mm1966 · driest 5 mm in 1995 | 62 |
| Month | Days 25°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 0 | 29 | 1 |
| February | 0 | 27 | <1 |
| March | 0 | 28 | 1 |
| April | 0 | 23 | 1 |
| May | <1 | 7 | <1 |
| June | 1 | <1 | 2 |
| July | 4 | 0 | 3 |
| August | 3 | 0 | 3 |
| September | <1 | 3 | 2 |
| October | 0 | 13 | 3 |
| November | 0 | 23 | 2 |
| December | 0 | 27 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 30% | 4% | 38% | -7.4–0.4°C |
| February | 0% | 25% | 2% | 27% | -6.4–1.7°C |
| March | 0% | 22% | 3% | 24% | -1.0–6.0°C |
| April | <1% | 22% | 4% | 22% | 4.6–9.4°C |
| May | 10% | 22% | 3% | 24% | 11.2–16.0°C |
| June | 32% | 27% | 5% | 32% | 16.6–21.3°C |
| July | 43% | 30% | 7% | 39% | 18.4–23.3°C |
| August | 33% | 30% | 9% | 37% | 16.7–21.3°C |
| September | 5% | 30% | 7% | 37% | 11.9–15.9°C |
| October | 0% | 30% | 7% | 38% | 6.0–9.7°C |
| November | 0% | 35% | 7% | 45% | -1.6–3.8°C |
| December | 0% | 34% | 6% | 43% | -5.4–1.1°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page
Nearby, measured,
and named.
- Place identity
- GeoNames 2670781
- NOAA station
- SWE00139790 · SIDSJO
- Station distance
- 1.5 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 15 usable years
- Daylight
- Calculated from latitude 62.39°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Sea temperature
- NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 17 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.